563:
587:
575:
599:
623:
611:
547:
532:
635:
46:
33:
347:
1003:
428:, while the former is not. While the validity of the separation into two species has been questioned, there are constant morphological differences in the colouration of the pereiopods and the form of the first zoea larva, and no evidence for any genetic connection between the two populations, and they are generally treated as separate species.
518:
carapaces, walk on their tiptoes, They have remarkable eyes and an extremely fast reaction time. In spite of the fact that they swarm on the rocks at the Cape , and to a less degree inside the Gulf , they are exceedingly hard to catch. They seem to be able to run in any of four directions; but more
586:
562:
574:
598:
842:
622:
610:
546:
531:
456:. They have been known to resort to cannibalism when populations densities are high or food is scarce. It is an agile crab, capable of leaping, and consequently hard to catch. Not considered very edible by humans, it is used as
1354:
1374:
1369:
1163:
1384:
1189:
634:
1379:
954:
1308:
1137:
1176:
1359:
378:
coasts of volcanic islands. Adults are quite variable in colour; some are muted brownish-red, some mottled or spotted brown, pink, or yellow.
1215:
1364:
749:
910:
Craig G. Macfarland; W. G. Reeder (1974). "Cleaning symbiosis involving Galápagos tortoises and two species of Darwin's finches".
843:"Estimating the density and biomass of moray eels (Muraenidae) using a modified visual census method for hole-dwelling reef fauna"
1321:
1254:
676:
444:), crustaceans (including other crabs), fishes, young sea turtles, bird eggs and droppings, bat guano and dead animals (mainly
398:
208:
181:
1389:
979:
1181:
741:
436:
This crab lives among the rocks at the often turbulent, windy shore, just above the limit of the sea spray. It feeds on
1098:
912:
1194:
1007:
45:
366:(claws). The other legs are broad and flat, with only the tips touching the substrate. The crab's round, flat
329:. It is also found along the Atlantic coast of South America, but is replaced in the eastern Atlantic Ocean (
1028:
1103:
259:
160:
519:
than this, perhaps because of their rapid reaction time, they appear to read the mind of their hunter.
362:
is a typically shaped crab, with five pairs of legs, the front two bearing small, blocky, symmetrical
1326:
1259:
1124:
1075:
1066:
854:
796:
776:
737:
664:
420:
339:
326:
502:, and also by the first comprehensive study of the fauna of the Gulf of California, carried out by
248:
237:
1349:
1246:
870:
733:
714:
474:
190:
40:
1168:
1295:
1228:
1111:
929:
553:
538:
921:
862:
330:
226:
1233:
32:
1202:
403:
314:
290:
1080:
858:
791:
771:
975:
925:
507:
492:
425:
390:
1343:
482:
453:
394:
363:
318:
204:
177:
947:
874:
812:
346:
1286:
1116:
457:
87:
1300:
515:
1241:
1150:
1060:
503:
462:
334:
107:
698:
888:
866:
742:"Decapod and Stomatopod Crustacea from Ascension Island, South Atlantic Ocean"
707:(H. Milne Edwards) (Decapoda, Brachyura, Grapsidae) from the western Atlantic"
496:
1051:
1016:
985:
127:
77:
57:
1207:
1090:
1002:
933:
1280:
1045:
445:
367:
281:
97:
374:
are black or dark brown in colour and are camouflaged well on the black
1313:
1142:
137:
440:
primarily, sometimes sampling other plant matter and sponges (such as
1155:
310:
67:
1022:
424:
were not separated until 1990. The latter is found in the eastern
345:
1220:
1129:
478:
449:
441:
437:
375:
322:
277:
117:
1026:
841:
Marianne
Gilbert; Joseph B Rasmussen; Donald L Kramer (2005).
817:(Crustacea: Decapoda: Brachyura) at an oceanic archipelago"
370:
is slightly longer than 8 centimetres (3.1 in). Young
460:
by fishermen. It is preyed upon by the chain moray eel,
1270:
1035:
890:
Crab vs Eel vs
Octopus | Blue Planet II | BBC Earth
813:"The leaping behavior of the sally lightfoot crab
697:G. Guerao; C. D. Schubart; J. D. Cuesta (2001).
592:Adult in Punta Pitt (San Cristobal), Galápagos.
350:Adult on Santa Cruz Island, Galapagos, Ecuador
8:
955:Oxford University Museum of Natural History
1023:
31:
20:
1355:Crustaceans of the eastern Pacific Ocean
792:"Grapsus grapsus (Sally Lightfoot crab)"
325:), and on nearby islands, including the
658:
656:
654:
650:
527:
1375:Western Central American coastal fauna
1370:Marine fauna of the Gulf of California
766:
764:
568:Juvenile in San Cristobal, Galápagos.
288:, or, along with other crabs such as
7:
1385:Western South American coastal fauna
750:Smithsonian Contributions to Zoology
309:is found along the Pacific coast of
514:These little crabs, with brilliant
926:10.1111/j.1439-0310.1974.tb01816.x
604:Group in San Cristobal, Galápagos.
580:Adult in San Cristobal, Galápagos.
14:
473:has been observed in an apparent
1001:
677:World Register of Marine Species
633:
621:
609:
597:
585:
573:
561:
545:
530:
44:
1380:Galápagos Islands coastal fauna
913:Zeitschrift fĂĽr Tierpsychologie
847:Environmental Biology of Fishes
510:and others. Steinbeck records:
280:along the western coast of the
981:The Log from the Sea of Cortez
824:Journal of Research in Biology
1:
1360:Crustaceans described in 1758
1365:Taxa named by Carl Linnaeus
699:"The first zoeal stages of
616:Adult in Baltra, Galápagos.
452:). As larvae, they feed on
1406:
485:on the Galápagos Islands.
321:(as far south as northern
276:is one of the most common
867:10.1007/s10641-005-2228-2
467:as well as by octopuses.
197:
189:
166:
159:
41:Scientific classification
39:
30:
23:
416:Grapsus grapsus
948:"Darwin at the Museum"
811:Marina AraĂşjo (2014).
772:"ADW: Graspus graspus"
628:View of the lower part
521:
495:during his voyages on
351:
1390:Crustaceans of Brazil
1019:on Sealife Collection
512:
349:
284:. It is known as the
1012:at Wikimedia Commons
797:Animal Diversity Web
777:Animal Diversity Web
738:Fenner A. Chace, Jr.
663:Peter Davie (2012).
640:Adult from the front
432:Ecology and behavior
421:G. adscensionis
340:Grapsus adscensionis
296:Sally Lightfoot crab
859:2005EnvBF..73..415G
734:Raymond B. Manning
705:Geograpsus lividus
475:cleaning symbiosis
352:
337:) by its congener
1337:
1336:
1229:Open Tree of Life
1029:Taxon identifiers
1006:Media related to
669:(Linnaeus, 1758)"
554:Galapagos Islands
539:Galapagos Islands
491:was collected by
327:Galápagos Islands
269:
268:
263:
252:
241:
234:Grapsus maculatus
230:
223:Grapsus altifrons
219:
211:
1397:
1330:
1329:
1317:
1316:
1304:
1303:
1291:
1290:
1289:
1263:
1262:
1250:
1249:
1237:
1236:
1224:
1223:
1211:
1210:
1198:
1197:
1185:
1184:
1172:
1171:
1159:
1158:
1146:
1145:
1133:
1132:
1120:
1119:
1107:
1106:
1094:
1093:
1084:
1083:
1071:
1070:
1069:
1056:
1055:
1054:
1024:
1005:
990:
989:
972:
966:
965:
963:
961:
952:
944:
938:
937:
907:
901:
900:
899:
898:
885:
879:
878:
838:
832:
831:
821:
808:
802:
801:
788:
782:
781:
768:
759:
758:
746:
730:
724:
723:
711:
694:
688:
687:
685:
683:
660:
637:
625:
613:
601:
589:
577:
565:
549:
534:
506:, together with
463:Echidna catenata
331:Ascension Island
258:
247:
236:
225:
217:
203:
172:
49:
48:
35:
21:
1405:
1404:
1400:
1399:
1398:
1396:
1395:
1394:
1340:
1339:
1338:
1333:
1325:
1320:
1312:
1307:
1299:
1294:
1285:
1284:
1279:
1266:
1258:
1253:
1245:
1240:
1232:
1227:
1219:
1214:
1206:
1203:Observation.org
1201:
1193:
1188:
1180:
1175:
1167:
1162:
1154:
1149:
1141:
1136:
1128:
1123:
1115:
1110:
1102:
1097:
1089:
1087:
1081:Grapsus_grapsus
1079:
1074:
1067:Grapsus grapsus
1065:
1064:
1059:
1050:
1049:
1044:
1037:Grapsus grapsus
1031:
1017:Grapsus grapsus
1009:Grapsus grapsus
998:
993:
974:
973:
969:
959:
957:
950:
946:
945:
941:
909:
908:
904:
896:
894:
893:, 5 August 2021
887:
886:
882:
840:
839:
835:
830:(4): 1357–1364.
819:
815:Grapsus grapsus
810:
809:
805:
790:
789:
785:
770:
769:
762:
744:
732:
731:
727:
709:
703:(Linnaeus) and
701:Grapsus grapsus
696:
695:
691:
681:
679:
667:Grapsus grapsus
662:
661:
652:
648:
641:
638:
629:
626:
617:
614:
605:
602:
593:
590:
581:
578:
569:
566:
557:
550:
541:
535:
526:
489:Grapsus grapsus
471:G. grapsus
434:
404:Systema Naturae
391:first described
387:Grapsus grapsus
384:
372:G. grapsus
360:Grapsus grapsus
357:
315:Central America
307:Grapsus grapsus
304:
291:Percnon gibbesi
273:Grapsus grapsus
245:Grapsus ornatus
215:Cancer jumpibus
185:
174:
170:Grapsus grapsus
168:
155:
152:G. grapsus
43:
25:Grapsus grapsus
17:
16:Species of crab
12:
11:
5:
1403:
1401:
1393:
1392:
1387:
1382:
1377:
1372:
1367:
1362:
1357:
1352:
1342:
1341:
1335:
1334:
1332:
1331:
1318:
1305:
1292:
1276:
1274:
1272:Cancer grapsus
1268:
1267:
1265:
1264:
1251:
1238:
1225:
1212:
1199:
1186:
1173:
1160:
1147:
1134:
1121:
1108:
1095:
1085:
1072:
1057:
1041:
1039:
1033:
1032:
1027:
1021:
1020:
1013:
997:
996:External links
994:
992:
991:
976:John Steinbeck
967:
939:
920:(5): 464–483.
902:
880:
853:(4): 415–426.
833:
803:
783:
760:
725:
689:
649:
647:
644:
643:
642:
639:
632:
630:
627:
620:
618:
615:
608:
606:
603:
596:
594:
591:
584:
582:
579:
572:
570:
567:
560:
558:
551:
544:
542:
536:
529:
525:
522:
508:John Steinbeck
493:Charles Darwin
483:marine iguanas
433:
430:
409:Cancer grapsus
383:
380:
356:
353:
303:
300:
267:
266:
265:
264:
256:Grapsus pictus
253:
242:
231:
220:
212:
201:Cancer grapsus
195:
194:
187:
186:
175:
164:
163:
157:
156:
149:
147:
143:
142:
135:
131:
130:
125:
121:
120:
115:
111:
110:
105:
101:
100:
95:
91:
90:
85:
81:
80:
75:
71:
70:
65:
61:
60:
55:
51:
50:
37:
36:
28:
27:
15:
13:
10:
9:
6:
4:
3:
2:
1402:
1391:
1388:
1386:
1383:
1381:
1378:
1376:
1373:
1371:
1368:
1366:
1363:
1361:
1358:
1356:
1353:
1351:
1348:
1347:
1345:
1328:
1323:
1319:
1315:
1310:
1306:
1302:
1297:
1293:
1288:
1282:
1278:
1277:
1275:
1273:
1269:
1261:
1256:
1252:
1248:
1243:
1239:
1235:
1230:
1226:
1222:
1217:
1213:
1209:
1204:
1200:
1196:
1191:
1187:
1183:
1178:
1174:
1170:
1165:
1161:
1157:
1152:
1148:
1144:
1139:
1135:
1131:
1126:
1122:
1118:
1113:
1109:
1105:
1100:
1096:
1092:
1086:
1082:
1077:
1073:
1068:
1062:
1058:
1053:
1047:
1043:
1042:
1040:
1038:
1034:
1030:
1025:
1018:
1014:
1011:
1010:
1004:
1000:
999:
995:
987:
983:
982:
977:
971:
968:
956:
949:
943:
940:
935:
931:
927:
923:
919:
915:
914:
906:
903:
892:
891:
884:
881:
876:
872:
868:
864:
860:
856:
852:
848:
844:
837:
834:
829:
825:
818:
816:
807:
804:
799:
798:
793:
787:
784:
779:
778:
773:
767:
765:
761:
756:
752:
751:
743:
739:
735:
729:
726:
722:(2): 111–121.
721:
717:
716:
708:
706:
702:
693:
690:
678:
674:
670:
668:
659:
657:
655:
651:
645:
636:
631:
624:
619:
612:
607:
600:
595:
588:
583:
576:
571:
564:
559:
555:
548:
543:
540:
533:
528:
523:
520:
517:
511:
509:
505:
501:
500:
494:
490:
486:
484:
480:
476:
472:
468:
466:
464:
459:
455:
454:phytoplankton
451:
447:
443:
439:
431:
429:
427:
423:
422:
417:
412:
410:
406:
405:
400:
396:
395:Carl Linnaeus
392:
388:
381:
379:
377:
373:
369:
365:
361:
354:
348:
344:
342:
341:
336:
332:
328:
324:
320:
319:South America
316:
312:
308:
301:
299:
297:
293:
292:
287:
286:red rock crab
283:
279:
275:
274:
261:
257:
254:
250:
249:Milne-Edwards
246:
243:
239:
238:Milne-Edwards
235:
232:
228:
224:
221:
216:
213:
210:
206:
202:
199:
198:
196:
192:
188:
183:
179:
173:
171:
165:
162:
161:Binomial name
158:
154:
153:
148:
145:
144:
141:
140:
136:
133:
132:
129:
126:
123:
122:
119:
116:
113:
112:
109:
106:
103:
102:
99:
96:
93:
92:
89:
86:
83:
82:
79:
76:
73:
72:
69:
66:
63:
62:
59:
56:
53:
52:
47:
42:
38:
34:
29:
26:
22:
19:
1271:
1036:
1008:
980:
970:
958:. Retrieved
942:
917:
911:
905:
895:, retrieved
889:
883:
850:
846:
836:
827:
823:
814:
806:
795:
786:
775:
754:
748:
728:
719:
713:
704:
700:
692:
680:. Retrieved
672:
666:
513:
498:
488:
487:
470:
469:
461:
435:
419:
415:
414:The species
413:
408:
402:
399:10th edition
397:in the 1758
386:
385:
371:
359:
358:
338:
306:
305:
302:Distribution
295:
289:
285:
272:
271:
270:
255:
244:
233:
222:
214:
200:
169:
167:
151:
150:
138:
114:Infraorder:
88:Malacostraca
24:
18:
1242:SeaLifeBase
1151:iNaturalist
1061:Wikispecies
682:October 21,
504:Ed Ricketts
355:Description
335:West Africa
218:Swire, 1938
108:Pleocyemata
1344:Categories
1287:Q107081049
1015:Photos of
897:2022-10-20
646:References
104:Suborder:
78:Arthropoda
1350:Grapsidae
986:Pan Books
960:March 23,
516:cloisonné
294:, as the
146:Species:
128:Grapsidae
118:Brachyura
64:Kingdom:
58:Eukaryota
1281:Wikidata
1169:10600077
1088:BioLib:
1046:Wikidata
875:12278911
740:(1990).
715:Nauplius
552:Baltra,
537:Baltra,
426:Atlantic
382:Taxonomy
368:carapace
282:Americas
227:Stimpson
205:Linnaeus
191:Synonyms
178:Linnaeus
124:Family:
98:Decapoda
74:Phylum:
68:Animalia
54:Domain:
1314:5972997
1143:2225819
1130:1021865
1052:Q181075
934:4454774
855:Bibcode
524:Gallery
477:taking
260:Lamarck
193:
139:Grapsus
134:Genus:
94:Order:
84:Class:
1327:452222
1260:422188
1221:422188
1208:157097
1195:106756
1104:399200
1091:171024
932:
873:
736:&
499:Beagle
364:chelae
317:, and
311:Mexico
262:, 1801
251:, 1853
240:, 1853
229:, 1860
1322:WoRMS
1255:WoRMS
1247:27217
1234:43251
1182:99072
1164:IRMNG
1156:55295
1117:6L587
951:(PDF)
871:S2CID
820:(PDF)
757:: 66.
745:(PDF)
710:(PDF)
673:WoRMS
481:from
479:ticks
450:birds
446:seals
442:clams
438:algae
278:crabs
1309:GBIF
1301:QKB8
1216:OBIS
1190:NCBI
1177:ITIS
1138:GBIF
1099:BOLD
962:2011
930:PMID
684:2012
497:HMS
458:bait
448:and
418:and
407:as "
389:was
376:lava
333:and
323:Peru
209:1758
182:1758
1296:CoL
1125:EoL
1112:CoL
1076:ADW
922:doi
863:doi
755:503
411:".
401:of
393:by
1346::
1324::
1311::
1298::
1283::
1257::
1244::
1231::
1218::
1205::
1192::
1179::
1166::
1153::
1140::
1127::
1114::
1101::
1078::
1063::
1048::
984:.
978:.
953:.
928:.
918:34
916:.
869:.
861:.
851:73
849:.
845:.
826:.
822:.
794:.
774:.
763:^
753:.
747:.
718:.
712:.
675:.
671:.
653:^
343:.
313:,
298:.
207:,
184:)
180:,
988:.
964:.
936:.
924::
877:.
865::
857::
828:4
800:.
780:.
720:9
686:.
665:"
556:.
465:,
176:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
