36:
375:
233:
606:
80:
55:
657:. The coloration is a plain gray above, sometimes with a brownish or yellowish cast, and lighter below. Males attain a length of 1.4 m (4.6 ft) and females 1.6 m (5.2 ft). There are unsubstantiated records of individuals 2.0–2.4 m (6.6–7.9 ft) long. The maximum known weight is 13 kg (29 lb).
829:
due to its low reproductive rate. The daggernose shark has declined over 90% over the past decade off Brazil, and similar declines have likely also occurred elsewhere in its range as fishing pressure in the region continues to grow more intense. The IUCN has urgently recommended the implementation of
629:
are small, without prominent nasal skin flaps. There are short but deep furrows at the corners of the mouth on both jaws. The tooth rows number 49–60 and 49–56 in the upper and lower jaws respectively. Each tooth has a single narrow, upright cusp; the upper teeth are slightly broader and flatter than
769:
and parturition take place over a roughly six-month period from the beginning to the end of the rainy season. However, the daggernose shark is capable of shifting the timing of its reproductive cycle by at least four months, possibly in response to varying environmental conditions. Females move into
365:
in light of a steep population decline in recent years. The current population is believed to be extremely low, with no more than 250 individuals believed to be in existence as of 2023. Indeed, it may even be in reproductive collapse, in which case it will likely become extinct in the near future.
557:
An inhabitant of coastal waters at a depth of 4–40 m (13–131 ft), the daggernose shark prefers highly turbid waters and decreases in number with increasing water clarity. Females tend to be found at greater depths than males. Its range encompasses a wide
842:
932:
Lessa, Rosangela, et al. “Close to
Extinction? The Collapse of the Endemic Daggernose Shark (Isogomphodon Oxyrhynchus) off Brazil.” Global Ecology and Conservation, vol. 7, 2016, pp. 70–81., doi:10.1016/j.gecco.2016.04.003.
322:. A relatively small shark typically reaching 1.5 m (4.9 ft) in length, the daggernose shark is unmistakable for its elongated, flattened, and pointed snout, tiny eyes, and large paddle-shaped
345:; this species is capable of shifting the timing of its reproductive cycle by several months in response to the environment. Harmless to humans, the daggernose shark is caught for food and as
1085:
Lessa, R.; F.M.Santana & P. Duarte-Neto (December 2006). "A critical appraisal of marginal increment analysis for assessing temporal periodicity in band formation among tropical sharks".
785:
of males has been measured at up to 7 years, and females 12 years; extrapolating from growth rates suggest that the largest known males and females may be 12 and 20 years old respectively.
2322:
2272:
617:
suggests, the daggernose shark has a very long, flattened snout with a pointed tip and an acutely triangular profile from above. The eyes are circular and minute in size, with
830:
conservation schemes and the expansion of fishery monitoring for this species. Evidence also points to this species being on the verge of or already in reproductive collapse.
2342:
781:
at 103 cm (41 in) long, corresponding to an age of 5–6 years, while females mature at 115 cm (45 in) long, corresponding to an age of 6–7 years. The
2337:
2060:
818:
362:
645:
originates over the posterior half of the pectoral fin bases. The second dorsal fin is about half as tall as the first and located over or slightly ahead of the
2099:
945:
2327:
2218:
2034:
1176:
2231:
2073:
35:
2282:
2138:
1069:
2307:
817:), which operates in estuaries during the dry season. This shark is often found in markets, but is not highly regarded as a food fish. The
761:
connection through which the mother delivers sustenance. Females give birth to litters of 2–8 pups every other year, following a year-long
2317:
2112:
1044:
1006:
981:
2244:
2164:
597:(December to May). This species is not known to make long-distance movements, though some local seasonal movements are possible.
2332:
1035:
Fowler, S.L.; R.D. Cavanagh; M. Camhi; G.H. Burgess; G.M. Cailliet; S.V. Fordham; C.A. Simpfendorfer & J.A. Musick (2005).
2292:
2287:
793:
The daggernose shark poses little danger to humans due to its small size and teeth. This shark is caught in small numbers by
2236:
2078:
887:
Pollom, R.; Charvet, P.; Faria, V.; Herman, K.; Lasso-Alcalá, O.; Marcante, F.; Nunes, J.; Rincon, G.; Kyne, P.M. (2020).
59:
1169:
391:
222:
1973:
79:
1995:
797:
in
Trinidad, Guyana, Suriname, and French Guiana. It also comprises about one-tenth of the catch of a northern Brazil
681:). Its elongated snout and tiny eyes are likely consequences of living in murky sediment-laden waters, reflecting an
2104:
1848:
1409:
374:
2302:
1839:
1812:
1526:
2312:
1857:
387:
218:
2297:
2277:
1890:
1821:
1339:
1162:
399:
585:
can measure up to 7 m (23 ft). Daggernose sharks are most common over shallow muddy banks and in
1935:
1436:
802:
2000:
1746:
1674:
1617:
822:
358:
201:
718:. With long jaws and numerous small teeth, the daggernose shark is well-suited for capturing the small
1128:
Lessa, R.; F.M. Santana; V. Batista & Z. Almeida (2000). "Age and growth of the daggernose shark,
2249:
2169:
1982:
1830:
1599:
1535:
1472:
1348:
1094:
618:
653:
has a well-developed lower lobe and is preceded by a crescent-shaped notch on the upper side of the
554:
surveys have not detected this species in the area and it is apparently unknown to local fishermen.
232:
1914:
1905:
1454:
605:
44:
911:
649:. The anal fin is smaller than the second dorsal fin and has a deep notch in the rear margin. The
1987:
1581:
1110:
461:
354:
245:
74:
2065:
2205:
2151:
2008:
1391:
1229:
1065:
1040:
1002:
977:
778:
690:
559:
543:
151:
2156:
770:
shallow coastal nurseries to give birth; one important nursery exists off
Brazilian state of
1608:
1355:
1141:
1102:
906:
762:
711:
686:
471:
284:
2091:
2125:
2117:
1881:
1722:
1713:
1517:
1499:
1490:
1400:
1382:
1285:
1258:
1249:
1039:. International Union for Conservation of Nature and Natural Resources. pp. 306–308.
974:
Sharks of the World: An
Annotated and Illustrated Catalogue of Shark Species Known to Date
810:
794:
666:
654:
350:
1098:
1794:
1665:
1445:
1427:
1276:
1217:
1211:
1186:
855:
719:
589:
and river mouths. It seems to be intolerant of low salinity, moving inshore during the
334:
131:
121:
2266:
2086:
1698:
1689:
1481:
1330:
1321:
1267:
897:
847:
535:
519:
503:
425:
422:
299:
287:
280:
178:
161:
64:
1114:
888:
777:
Newly born daggernose sharks measure 38–43 cm (15–17 in) in length. Males
2196:
2013:
1590:
1373:
1312:
1303:
1294:
1240:
841:
694:
634:
594:
574:
466:
342:
323:
20:
2210:
2047:
1967:
1755:
1572:
1557:
1548:
1508:
1463:
1364:
826:
771:
614:
319:
1154:
1803:
1779:
1770:
1418:
1106:
837:
742:
735:
703:
682:
674:
650:
642:
590:
507:
338:
1958:
1872:
1737:
1656:
782:
638:
480:
315:
91:
693:
senses rather than vision. The snout bears a superficial similarity to the
2130:
378:
The illustration that accompanied MĂĽller and Henle's original description.
2190:
2021:
1952:
1205:
758:
754:
715:
707:
646:
578:
570:
563:
531:
523:
486:
330:
311:
303:
295:
111:
2223:
2039:
798:
765:. There is no correlation between female size and number of offspring.
731:
727:
723:
665:
The dominant shark species within the daggernose shark's range are the
626:
586:
566:
551:
495:
346:
276:
2052:
2026:
1199:
766:
746:
622:
539:
527:
307:
101:
1929:
1145:
1037:
Sharks, Rays and
Chimaeras: The Status of the Chondrichthyan Fishes
1223:
604:
547:
373:
341:, with females give birth to 2–8 pups every other year during the
291:
141:
357:. Limited in range and slow-reproducing, it has been assessed as
2143:
825:, as it has a limited distribution and is highly susceptible to
750:
582:
1933:
1158:
976:. Rome: Food and Agricultural Organization. pp. 510–511.
940:
938:
882:
880:
878:
876:
874:
872:
870:
518:
The daggernose shark is found along the northeastern coast of
450:
442:
434:
415:
407:
382:
The first scientific description of the daggernose shark, as
633:
The body is robustly built, with large, broad, paddle-like
722:
that comprise most of its diet. Known prey taken include
630:
the lower teeth, with serrated rather than smooth edges.
997:
Carrier, J.C.; J.A. Musick & M.R. Heithaus (2004).
2180:
1942:
1903:
1870:
1792:
1768:
1735:
1711:
1687:
1654:
1630:
1570:
1546:
1238:
1060:Compagno, L.J.V.; M. Dando & S. Fowler (2005).
581:in this area ranges from 20 to 34 ppt, while the
573:, and draining by numerous rivers including the
474:in 1950. Regardless of its taxonomic validity,
318:, and river mouths, though it is intolerant of
1030:
1028:
1026:
1024:
1022:
1020:
1018:
819:International Union for Conservation of Nature
470:, until it was resurrected by shark authority
363:International Union for Conservation of Nature
1170:
912:10.2305/IUCN.UK.2020-3.RLTS.T60218A3094144.en
8:
2323:Critically endangered biota of South America
2273:IUCN Red List critically endangered species
1064:. Princeton University Press. p. 313.
593:(June to November) and offshore during the
396:Systematische Beschreibung der Plagiostomen
2343:Taxa named by Friedrich Gustav Jakob Henle
1930:
1177:
1163:
1155:
967:
965:
963:
961:
959:
957:
955:
231:
53:
34:
25:
946:"The Daggernose Shark is Near Extinction"
910:
866:
542:. It reportedly occurs as far south as
460:was subsequently relegated to being a
999:Biology of Sharks and Their Relatives
386:, was published by German biologists
7:
821:(IUCN) has assessed this species as
290:, and the only extant member of its
2338:Taxa named by Johannes Peter MĂĽller
898:IUCN Red List of Threatened Species
546:in the central Brazilian state of
310:, favoring muddy habitats such as
14:
432:for this species, from the Greek
840:
78:
2328:Extant Eocene first appearances
1087:Environmental Biology of Fishes
637:that originate under the fifth
1134:Marine and Freshwater Research
240:Range of the daggernose shark
1:
1001:. CRC Press. pp. 51–52.
2283:Fish of the Western Atlantic
1849:Australian sharpnose shark (
1410:Smoothtooth blacktip shark (
451:
443:
435:
421:("nose"). In 1862, American
416:
408:
392:Friedrich Gustav Jakob Henle
19:Not to be confused with the
2308:Fish of Trinidad and Tobago
1840:Caribbean sharpnose shark (
1813:Brazilian sharpnose shark (
1527:Australian blacktip shark (
413:("sharp" or "pointed") and
2359:
2318:Critically endangered fish
1858:Atlantic sharpnose shark (
807:Scomberomorus brasiliensis
23:which has a similar snout.
18:
1891:Pacific spadenose shark (
1822:Pacific sharpnose shark (
1340:Pacific smalltail shark (
1194:
1132:, from northern Brazil".
1107:10.1007/s10641-006-9111-7
972:Compagno, L.J.V. (1984).
251:
244:
239:
230:
207:
200:
75:Scientific classification
73:
51:
42:
33:
28:
1988:Isogomphodon_oxyrhynchus
1974:Isogomphodon oxyrhynchus
1944:Isogomphodon oxyrhynchus
1437:Oceanic whitetip shark (
1130:Isogomphodon oxyrhynchus
891:Isogomphodon oxyrhynchus
749:exhaust their supply of
741:The daggernose shark is
514:Distribution and habitat
490:, is closely related to
478:, along with the genera
298:waters off northeastern
272:Isogomphodon oxyrhynchus
257:MĂĽller & Henle, 1839
211:Isogomphodon oxyrhynchus
1747:Sicklefin lemon shark (
1675:Borneo broadfin shark (
1618:Irrawaddy river shark (
448:("nail" or "peg"), and
2333:Fish described in 1839
2182:Carcharias oxyrhynchus
1831:Grey sharpnose shark (
1600:Northern river shark (
1473:Caribbean reef shark (
803:Serra Spanish mackerel
745:; once the developing
610:
384:Carcharias oxyrhynchus
379:
370:Taxonomy and phylogeny
337:. Its reproduction is
329:Daggernose sharks are
294:. It inhabits shallow
254:Carcharias oxyrhynchus
2293:Fish of French Guiana
2288:Marine fish of Brazil
1915:Whitetip reef shark (
1455:Blacktip reef shark (
823:Critically Endangered
619:nictitating membranes
609:Ventral view of head.
608:
388:Johannes Peter MĂĽller
377:
359:Critically Endangered
60:Critically Endangered
1582:Borneo river shark (
905:: e.T60218A3094144.
757:is converted into a
712:long-nosed chimaeras
671:Carcharhinus porosus
621:(a protective third
502:, dates back to the
456:("tooth"). However,
355:commercial fisheries
275:) is a little-known
1392:Pondicherry shark (
1279:C. amblyrhynchoides
1099:2006EnvBF..77..309L
1062:Sharks of the World
795:subsistence fishers
714:, all found in the
699:Mitsukurina owstoni
661:Biology and ecology
193:I. oxyrhynchus
45:Conservation status
1642:Daggernose shark (
1609:Speartooth shark (
1356:Whitecheek shark (
801:fishery targeting
789:Human interactions
611:
428:coined the genius
380:
2260:
2259:
2152:Open Tree of Life
1936:Taxon identifiers
1927:
1926:
1882:Spadenose shark (
1723:Whitenose shark (
1518:Spot-tail shark (
1500:Blackspot shark (
1491:Smalltail shark (
1401:Finetooth shark (
1383:Galapagos shark (
1286:Grey reef shark (
1261:C. albimarginatus
1259:Silvertip shark (
1250:Blacknose shark (
1230:Carcharhiniformes
1071:978-0-691-12072-0
560:continental shelf
405:, from the Greek
398:. They chose the
263:
262:
258:
182:
152:Carcharhiniformes
68:
29:Daggernose shark
2350:
2303:Fish of Suriname
2253:
2252:
2240:
2239:
2227:
2226:
2214:
2213:
2201:
2200:
2199:
2173:
2172:
2160:
2159:
2147:
2146:
2134:
2133:
2121:
2120:
2118:daggernose-shark
2108:
2107:
2095:
2094:
2082:
2081:
2069:
2068:
2056:
2055:
2043:
2042:
2030:
2029:
2017:
2016:
2004:
2003:
1991:
1990:
1978:
1977:
1976:
1963:
1962:
1961:
1931:
1893:S. macrorhynchos
1666:Broadfin shark (
1446:Hardnose shark (
1428:Blacktip shark (
1385:C. galapagenisis
1288:C. amblyrhynchos
1277:Graceful shark (
1179:
1172:
1165:
1156:
1150:
1149:
1125:
1119:
1118:
1093:(3–4): 309–315.
1082:
1076:
1075:
1057:
1051:
1050:
1032:
1013:
1012:
994:
988:
987:
969:
950:
949:
942:
933:
930:
924:
923:
921:
919:
914:
884:
850:
845:
844:
815:Cynoscion acoupa
799:floating gillnet
763:gestation period
720:schooling fishes
687:electroreception
472:Stewart Springer
454:
446:
438:
419:
411:
400:specific epithet
335:schooling fishes
267:daggernose shark
256:
235:
213:
177:
83:
82:
62:
57:
56:
38:
26:
16:Species of shark
2358:
2357:
2353:
2352:
2351:
2349:
2348:
2347:
2313:Viviparous fish
2263:
2262:
2261:
2256:
2248:
2243:
2235:
2230:
2222:
2217:
2209:
2204:
2195:
2194:
2189:
2176:
2168:
2163:
2155:
2150:
2142:
2137:
2129:
2126:Observation.org
2124:
2116:
2111:
2103:
2098:
2090:
2085:
2077:
2072:
2064:
2059:
2051:
2046:
2038:
2033:
2025:
2020:
2012:
2007:
1999:
1994:
1986:
1981:
1972:
1971:
1966:
1957:
1956:
1951:
1938:
1928:
1923:
1899:
1866:
1788:
1764:
1758:N. brevirostris
1731:
1707:
1699:Sliteye shark (
1683:
1650:
1626:
1566:
1542:
1482:Sandbar shark (
1457:C. melanopterus
1376:C. fitzroyensis
1331:Nervous shark (
1322:Spinner shark (
1268:Bignose shark (
1234:
1190:
1183:
1153:
1146:10.1071/MF99125
1127:
1126:
1122:
1084:
1083:
1079:
1072:
1059:
1058:
1054:
1047:
1034:
1033:
1016:
1009:
996:
995:
991:
984:
971:
970:
953:
944:
943:
936:
931:
927:
917:
915:
886:
885:
868:
864:
846:
839:
836:
811:Acoupa weakfish
791:
753:, the depleted
667:smalltail shark
663:
655:caudal peduncle
603:
583:tidal amplitude
538:, and northern
516:
372:
226:
215:
209:
196:
176:
77:
69:
58:
54:
47:
24:
17:
12:
11:
5:
2356:
2354:
2346:
2345:
2340:
2335:
2330:
2325:
2320:
2315:
2310:
2305:
2300:
2298:Fish of Guyana
2295:
2290:
2285:
2280:
2278:Carcharhinidae
2275:
2265:
2264:
2258:
2257:
2255:
2254:
2241:
2228:
2215:
2202:
2186:
2184:
2178:
2177:
2175:
2174:
2161:
2148:
2135:
2122:
2109:
2096:
2083:
2070:
2057:
2044:
2031:
2018:
2005:
1992:
1979:
1964:
1948:
1946:
1940:
1939:
1934:
1925:
1924:
1922:
1921:
1911:
1909:
1901:
1900:
1898:
1897:
1888:
1878:
1876:
1868:
1867:
1865:
1864:
1860:R. terraenovae
1855:
1846:
1837:
1828:
1819:
1810:
1800:
1798:
1795:Rhizoprionodon
1790:
1789:
1787:
1786:
1776:
1774:
1766:
1765:
1763:
1762:
1753:
1743:
1741:
1733:
1732:
1730:
1729:
1719:
1717:
1709:
1708:
1706:
1705:
1701:L. macrorhinus
1695:
1693:
1685:
1684:
1682:
1681:
1672:
1662:
1660:
1652:
1651:
1649:
1648:
1644:I. oxyrhynchus
1638:
1636:
1628:
1627:
1625:
1624:
1615:
1606:
1597:
1591:Ganges shark (
1588:
1578:
1576:
1568:
1567:
1565:
1564:
1554:
1552:
1544:
1543:
1541:
1540:
1533:
1524:
1515:
1506:
1497:
1488:
1479:
1470:
1461:
1452:
1443:
1434:
1425:
1416:
1407:
1398:
1389:
1380:
1374:Creek whaler (
1371:
1367:C. falciformis
1362:
1353:
1346:
1337:
1328:
1319:
1313:Copper shark (
1310:
1304:Borneo shark (
1301:
1297:C. amboinensis
1295:Pigeye shark (
1292:
1283:
1274:
1265:
1256:
1246:
1244:
1236:
1235:
1233:
1232:
1226:
1220:
1218:Elasmobranchii
1214:
1212:Chondrichthyes
1208:
1202:
1195:
1192:
1191:
1184:
1182:
1181:
1174:
1167:
1159:
1152:
1151:
1140:(4): 339–347.
1120:
1077:
1070:
1052:
1045:
1014:
1007:
989:
982:
951:
934:
925:
865:
863:
860:
859:
858:
856:List of sharks
852:
851:
835:
832:
790:
787:
679:Sphyrna tiburo
662:
659:
602:
599:
515:
512:
394:in their 1839
371:
368:
288:Carcharhinidae
261:
260:
249:
248:
242:
241:
237:
236:
228:
227:
216:
205:
204:
198:
197:
190:
188:
184:
183:
169:
165:
164:
162:Carcharhinidae
159:
155:
154:
149:
145:
144:
139:
135:
134:
132:Elasmobranchii
129:
125:
124:
122:Chondrichthyes
119:
115:
114:
109:
105:
104:
99:
95:
94:
89:
85:
84:
71:
70:
52:
49:
48:
43:
40:
39:
31:
30:
15:
13:
10:
9:
6:
4:
3:
2:
2355:
2344:
2341:
2339:
2336:
2334:
2331:
2329:
2326:
2324:
2321:
2319:
2316:
2314:
2311:
2309:
2306:
2304:
2301:
2299:
2296:
2294:
2291:
2289:
2286:
2284:
2281:
2279:
2276:
2274:
2271:
2270:
2268:
2251:
2246:
2242:
2238:
2233:
2229:
2225:
2220:
2216:
2212:
2207:
2203:
2198:
2192:
2188:
2187:
2185:
2183:
2179:
2171:
2166:
2162:
2158:
2153:
2149:
2145:
2140:
2136:
2132:
2127:
2123:
2119:
2114:
2110:
2106:
2101:
2097:
2093:
2088:
2084:
2080:
2075:
2071:
2067:
2062:
2058:
2054:
2049:
2045:
2041:
2036:
2032:
2028:
2023:
2019:
2015:
2010:
2006:
2002:
1997:
1993:
1989:
1984:
1980:
1975:
1969:
1965:
1960:
1954:
1950:
1949:
1947:
1945:
1941:
1937:
1932:
1920:
1918:
1913:
1912:
1910:
1908:
1907:
1902:
1896:
1894:
1889:
1887:
1885:
1884:S. laticaudus
1880:
1879:
1877:
1875:
1874:
1869:
1863:
1861:
1856:
1854:
1852:
1847:
1845:
1843:
1838:
1836:
1834:
1829:
1827:
1825:
1820:
1818:
1816:
1811:
1809:
1807:
1802:
1801:
1799:
1797:
1796:
1791:
1785:
1783:
1778:
1777:
1775:
1773:
1772:
1767:
1761:
1759:
1756:Lemon shark (
1754:
1752:
1750:
1745:
1744:
1742:
1740:
1739:
1734:
1728:
1726:
1721:
1720:
1718:
1716:
1715:
1710:
1704:
1702:
1697:
1696:
1694:
1692:
1691:
1686:
1680:
1678:
1673:
1671:
1669:
1668:L. temminckii
1664:
1663:
1661:
1659:
1658:
1653:
1647:
1645:
1640:
1639:
1637:
1635:
1634:
1629:
1623:
1621:
1616:
1614:
1612:
1607:
1605:
1603:
1598:
1596:
1594:
1593:G. gangeticus
1589:
1587:
1585:
1580:
1579:
1577:
1575:
1574:
1569:
1563:
1561:
1558:Tiger shark (
1556:
1555:
1553:
1551:
1550:
1545:
1539:
1538:
1534:
1532:
1530:
1525:
1523:
1521:
1516:
1514:
1512:
1509:Night shark (
1507:
1505:
1503:
1498:
1496:
1494:
1489:
1487:
1485:
1480:
1478:
1476:
1471:
1469:
1467:
1464:Dusky shark (
1462:
1460:
1458:
1453:
1451:
1449:
1444:
1442:
1440:
1439:C. longimanus
1435:
1433:
1431:
1426:
1424:
1422:
1417:
1415:
1413:
1408:
1406:
1404:
1399:
1397:
1395:
1390:
1388:
1386:
1381:
1379:
1377:
1372:
1370:
1368:
1365:Silky shark (
1363:
1361:
1359:
1358:C. dussumieri
1354:
1352:
1351:
1347:
1345:
1343:
1338:
1336:
1334:
1329:
1327:
1325:
1324:C. brevipinna
1320:
1318:
1316:
1315:C. brachyurus
1311:
1309:
1307:
1306:C. borneensis
1302:
1300:
1298:
1293:
1291:
1289:
1284:
1282:
1280:
1275:
1273:
1271:
1266:
1264:
1262:
1257:
1255:
1253:
1248:
1247:
1245:
1243:
1242:
1237:
1231:
1227:
1225:
1221:
1219:
1215:
1213:
1209:
1207:
1203:
1201:
1197:
1196:
1193:
1188:
1187:requiem shark
1180:
1175:
1173:
1168:
1166:
1161:
1160:
1157:
1147:
1143:
1139:
1135:
1131:
1124:
1121:
1116:
1112:
1108:
1104:
1100:
1096:
1092:
1088:
1081:
1078:
1073:
1067:
1063:
1056:
1053:
1048:
1046:2-8317-0700-5
1042:
1038:
1031:
1029:
1027:
1025:
1023:
1021:
1019:
1015:
1010:
1008:0-8493-1514-X
1004:
1000:
993:
990:
985:
983:92-5-101384-5
979:
975:
968:
966:
964:
962:
960:
958:
956:
952:
947:
941:
939:
935:
929:
926:
913:
908:
904:
900:
899:
894:
892:
883:
881:
879:
877:
875:
873:
871:
867:
861:
857:
854:
853:
849:
848:Sharks portal
843:
838:
833:
831:
828:
824:
820:
816:
812:
808:
804:
800:
796:
788:
786:
784:
780:
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773:
768:
764:
760:
756:
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748:
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739:
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733:
729:
725:
721:
717:
713:
709:
706:
705:
700:
696:
692:
688:
684:
680:
676:
672:
668:
660:
658:
656:
652:
648:
644:
640:
636:
635:pectoral fins
631:
628:
624:
620:
616:
607:
600:
598:
596:
592:
588:
584:
580:
576:
572:
568:
565:
562:with a humid
561:
555:
553:
549:
545:
541:
537:
536:French Guiana
533:
529:
525:
521:
520:South America
513:
511:
509:
505:
504:Middle Eocene
501:
497:
493:
489:
488:
483:
482:
477:
473:
469:
468:
463:
459:
455:
453:
447:
445:
439:
437:
431:
427:
426:Theodore Gill
424:
423:ichthyologist
420:
418:
412:
410:
404:
401:
397:
393:
389:
385:
376:
369:
367:
364:
360:
356:
352:
348:
344:
340:
336:
332:
327:
325:
324:pectoral fins
321:
317:
313:
309:
305:
301:
300:South America
297:
293:
289:
286:
282:
281:requiem shark
278:
274:
273:
268:
259:
255:
250:
247:
243:
238:
234:
229:
224:
220:
214:
212:
206:
203:
202:Binomial name
199:
195:
194:
189:
186:
185:
180:
175:
174:
170:
167:
166:
163:
160:
157:
156:
153:
150:
147:
146:
143:
142:Selachimorpha
140:
138:Subdivision:
137:
136:
133:
130:
127:
126:
123:
120:
117:
116:
113:
110:
107:
106:
103:
100:
97:
96:
93:
90:
87:
86:
81:
76:
72:
66:
61:
50:
46:
41:
37:
32:
27:
22:
2181:
1943:
1916:
1904:
1892:
1883:
1871:
1859:
1850:
1841:
1833:R. oligolinx
1832:
1823:
1814:
1805:
1804:Milk shark (
1793:
1781:
1780:Blue shark (
1769:
1757:
1749:N. acutidens
1748:
1736:
1724:
1712:
1700:
1688:
1677:L. tephrodes
1676:
1667:
1655:
1643:
1641:
1633:Isogomphodon
1632:
1631:
1620:G. siamensis
1619:
1610:
1601:
1592:
1583:
1571:
1559:
1547:
1536:
1528:
1519:
1510:
1501:
1492:
1483:
1474:
1465:
1456:
1447:
1438:
1429:
1420:
1419:Bull shark (
1411:
1402:
1393:
1384:
1375:
1366:
1357:
1349:
1341:
1332:
1323:
1314:
1305:
1296:
1287:
1278:
1269:
1260:
1252:C. acronotus
1251:
1241:Carcharhinus
1239:
1222:Subdivision
1137:
1133:
1129:
1123:
1090:
1086:
1080:
1061:
1055:
1036:
998:
992:
973:
928:
916:. Retrieved
902:
896:
890:
814:
806:
792:
776:
740:
702:
698:
695:goblin shark
685:emphasis on
678:
670:
664:
641:. The first
632:
612:
595:rainy season
569:, extensive
556:
517:
499:
492:Carcharhinus
491:
485:
479:
476:Isogomphodon
475:
467:Carcharhinus
465:
458:Isogomphodon
457:
449:
441:
433:
430:Isogomphodon
429:
414:
406:
402:
395:
383:
381:
343:rainy season
328:
306:to northern
271:
270:
266:
264:
253:
252:
219:J. P. MĂĽller
210:
208:
192:
191:
173:Isogomphodon
172:
171:
21:Goblin shark
2048:iNaturalist
1968:Wikispecies
1824:R. longurio
1815:R. lalandii
1602:G. garricki
1584:G. fowlerae
1529:C. tilstoni
1511:C. signatus
1484:C. plumbeus
1466:C. obscurus
1430:C. limbatus
1394:C. hemiodon
918:19 November
827:overfishing
615:common name
601:Description
500:I. acuarius
440:("equal"),
403:oxyrhynchus
320:fresh water
2267:Categories
2197:Q107055308
1906:Triaenodon
1851:R. taylori
1842:R. porosus
1611:G. glyphis
1549:Galeocerdo
1537:C. tjutjot
1493:C. porosus
1448:C. macloti
1412:C. leiodon
1350:C. coatesi
1342:C. cerdale
1270:C. altimus
862:References
743:viviparous
710:, and the
704:Apristurus
689:and other
675:bonnethead
673:) and the
651:caudal fin
643:dorsal fin
591:dry season
498:relative,
339:viviparous
179:T. N. Gill
128:Subclass:
1917:T. obesus
1873:Scoliodon
1806:R. acutus
1782:P. glauca
1738:Negaprion
1714:Nasolamia
1657:Lamiopsis
1560:G. cuvier
1520:C. sorrah
1502:C. sealei
1475:C. perezi
1421:C. leucas
1403:C. isodon
1333:C. cautus
1216:Subclass
759:placental
728:anchovies
708:catsharks
639:gill slit
587:estuaries
571:mangroves
550:, though
481:Nasolamia
351:artisanal
333:of small
331:predators
316:estuaries
312:mangroves
283:, in the
187:Species:
98:Kingdom:
92:Eukaryota
2191:Wikidata
2066:10957693
2022:FishBase
1953:Wikidata
1771:Prionace
1725:N. velox
1224:Selachii
1206:Chordata
1200:Animalia
1198:Kingdom
1115:23735874
834:See also
783:lifespan
772:MaranhĂŁo
755:yolk sac
736:croakers
716:deep sea
701:), some
683:adaptive
647:anal fin
627:nostrils
579:salinity
577:. Water
564:tropical
532:Suriname
524:Trinidad
487:Prionace
417:rhynchos
304:Trinidad
296:tropical
246:Synonyms
158:Family:
112:Chordata
108:Phylum:
102:Animalia
88:Domain:
65:IUCN 3.1
2224:6742944
2157:1058824
2040:2418200
1959:Q942155
1690:Loxodon
1573:Glyphis
1204:Phylum
1189:species
1185:Extant
1095:Bibcode
747:embryos
732:catfish
724:herring
691:rostral
625:). The
613:As its
567:climate
552:fishery
544:Valença
496:extinct
462:synonym
444:gomphos
347:bycatch
302:, from
277:species
225:, 1839)
168:Genus:
148:Order:
118:Class:
63: (
2250:298687
2237:160471
2170:281186
2144:281186
2131:794389
2105:661137
2079:160470
2053:103531
2001:179834
1228:Order
1210:Class
1113:
1068:
1043:
1005:
980:
809:) and
779:mature
767:Mating
734:, and
623:eyelid
575:Amazon
540:Brazil
528:Guyana
522:, off
308:Brazil
285:family
221:&
181:, 1862
2245:WoRMS
2165:WoRMS
2092:60218
2061:IRMNG
2014:3Q956
1111:S2CID
548:Bahia
494:. An
452:odous
292:genus
223:Henle
2232:ITIS
2219:GBIF
2211:R3TT
2139:OBIS
2113:NOAA
2100:NCBI
2087:IUCN
2074:ITIS
2035:GBIF
1996:BOLD
1066:ISBN
1041:ISBN
1003:ISBN
978:ISBN
920:2021
903:2020
751:yolk
506:(45
484:and
436:isos
409:oxys
390:and
353:and
265:The
2206:CoL
2027:891
2009:CoL
1983:ADW
1142:doi
1103:doi
907:doi
510:).
464:of
361:by
349:in
279:of
2269::
2247::
2234::
2221::
2208::
2193::
2167::
2154::
2141::
2128::
2115::
2102::
2089::
2076::
2063::
2050::
2037::
2024::
2011::
1998::
1985::
1970::
1955::
1138:51
1136:.
1109:.
1101:.
1091:77
1089:.
1017:^
954:^
937:^
901:.
895:.
869:^
774:.
738:.
730:,
726:,
534:,
530:,
526:,
508:Ma
326:.
314:,
1919:)
1895:)
1886:)
1862:)
1853:)
1844:)
1835:)
1826:)
1817:)
1808:)
1784:)
1760:)
1751:)
1727:)
1703:)
1679:)
1670:)
1646:)
1622:)
1613:)
1604:)
1595:)
1586:)
1562:)
1531:)
1522:)
1513:)
1504:)
1495:)
1486:)
1477:)
1468:)
1459:)
1450:)
1441:)
1432:)
1423:)
1414:)
1405:)
1396:)
1387:)
1378:)
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1360:)
1344:)
1335:)
1326:)
1317:)
1308:)
1299:)
1290:)
1281:)
1272:)
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1254:)
1178:e
1171:t
1164:v
1148:.
1144::
1117:.
1105::
1097::
1074:.
1049:.
1011:.
986:.
948:.
922:.
909::
893:"
889:"
813:(
805:(
697:(
677:(
669:(
269:(
217:(
67:)
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