722:
264:
283:
jellyfish, where they can capture their next meal. This stimuli attracts the prey since the light that is displayed on the jellyfish is not normal for the habitat. An instinctual response in their prey is to go towards this light, which allows the jellyfish to catch and eat their prey with some more ease. The flower hat jelly can grow to be about 15 cm (6 in) in diameter. When first observed in the wild, typically around
December, they only measure 2 cm (0.8 in).
55:
42:
256:
312:
These invertebrates have also helped in human research. A study has been done on the fluorescent proteins that are in the
Olindias hydroids. It has been found that these proteins have been able to help treat some COVID cases. These proteins can act as entry inhibitors against this virus. This causes
243:
found off
Argentina and Brazil). The adult form of the flower hat jelly only lives a few months and is typically seen from December to July, with peaks in April and May. During the day they rest on the bottom, often among rocks or algae, but at night they float up to hunt for their prey, typically
278:
that coil and adhere to its rim when not in use. Its bell is translucent and pinstriped with opaque bands. Although the tentacles may look randomized in their arrangement, extensive research has been done to show that the tentacles are arranged mathematically. The tentacle arrangement displays an
282:
The fluorescent proteins have been shown to help these predators obtain food as well. These proteins cause light to reflect off of the jellyfish, which makes it appear fluorescent. This light in the water can invoke supernormal stimuli. This stimuli will attract the prey closer to the flower hat
303:
only happened when the hydroids were kept at water temperatures of 15 °C (59 °F); not 20 °C (68 °F) or 25 °C (77 °F). In contrast, the two warmer temperatures appeared to produce more medusae. This indicates that hydroid growth and reproduction (budding) occur in
304:
15 °C (59 °F) or less, while warmer temperatures initiate the change into medusae. This matches the annual sea temperature variations observed in its native range. In aquariums, adults are usually kept in full salt water that is about 15–18 °C (59–64 °F).
383:
Patry, W.; T. Knowles; L. Christianson; M. Howard (2014). The hydroid and early medusa stage of
Olindias formosus (Cnidaria, Hydrozoa, Limnomedusae). Journal of the Marine Biological Association of the United Kingdom 94(7): 1409–1415.
400:
Resgalla Junior, C.; A.L. Rosseto; V. Haddad Jr (2011). Report of an outbreak of stings caused by
Olindias sambaquiensis Muller, 1861 (Cnidaria: hydrozoa) in Southern Brazil. Braz. j. oceanogr. 59(4).
299:. The hydroids attached themselves to various surfaces and formed small clusters. Eventually the medusae were released at a diameter of about 1 mm (0.04 in).
655:
642:
513:"Viral infection neutralization tests: A focus on severe acute respiratory syndrome‐coronavirus‐2 with implications for convalescent plasma therapy"
763:
668:
487:
488:"Fluorescent proteins function as a prey attractant: experimental evidence from the hydromedusa Olindias formosus and other marine organism"
787:
247:
The sting of the flower hat jelly is generally mildly painful and leaves a rash. There is a single known human fatality from Japan.
694:
335:
673:
756:
721:
313:
the replication of COVID to be slowed and halted, preventing the virus from continuing to attack the immune system.
263:
422:
54:
792:
239:
749:
569:
607:
233:. Flower hat jellies occur in the northwestern Pacific off central and southern Japan, and South Korea's
296:
149:
699:
629:
331:
782:
686:
175:
49:
166:
660:
616:
550:
532:
458:
292:
733:
540:
524:
466:
448:
401:
385:
545:
512:
471:
41:
776:
359:
405:
621:
295:
have been reported from the wild. Flower hat jellies have bred in a display at the
106:
511:
Focosi, Daniele; Maggi, Fabrizio; Mazzetti, Paola; Pistello, Mauro (March 2021).
681:
601:
234:
17:
255:
389:
268:
218:
116:
592:
536:
462:
436:
230:
222:
66:
554:
729:
586:
288:
275:
226:
214:
126:
96:
86:
647:
300:
453:
528:
76:
563:
262:
254:
279:
optimal hashing algorithm. This is called the
Fibonacci hashing.
634:
567:
286:
Little is known about the details of its life cycle and no
737:
267:
A flower hat jelly with its tentacles extended under
437:"Optimal hash arrangement of tentacles in jellyfish"
576:
486:Haddock, Steven; Dunn, Casey (June 30, 2015).
757:
8:
435:Okabe, Takuya; Yoshimura, Jin (2016-06-07).
417:
415:
413:
379:
377:
375:
373:
371:
369:
367:
764:
750:
564:
40:
31:
544:
470:
452:
237:. (close relatives live elsewhere, like
350:Goto, S. (1903). The craspedote medusa
327:
325:
321:
229:, while true jellyfish belong in class
346:
344:
259:A flower hat jelly perched among algae
7:
718:
716:
354:and some of its natural allies. In:
274:This fluorescent jelly has lustrous
225:, they actually belong in the class
736:. You can help Knowledge (XXG) by
25:
720:
336:World Register of Marine Species
53:
406:10.1590/S1679-87592011000400009
1:
221:. Although they look like a
517:Reviews in Medical Virology
308:Flower hat jelly and humans
809:
715:
425:. Retrieved 17 March 2019.
334:. Retrieved through:
788:Animals described in 1903
390:10.1017/S0025315414000691
251:Appearance and life cycle
181:
174:
155:
148:
50:Scientific classification
48:
39:
34:
217:in the hydrozoan family
492:journals.biologists.com
421:Monterey Bay Aquarium:
356:Mark Anniversary Volume
732:-related article is a
271:
260:
297:Monterey Bay Aquarium
266:
258:
27:Species of cnidarian
193:Olindioides formosa
441:Scientific Reports
272:
261:
213:) is a species of
745:
744:
710:
709:
608:Olindias formosus
570:Taxon identifiers
454:10.1038/srep27347
358:, 1903, p. 1–22.
332:Olindias formosus
211:Olindias formosus
203:
202:
197:
189:
159:Olindias formosus
35:Flower hat jelly
16:(Redirected from
800:
766:
759:
752:
724:
717:
703:
702:
690:
689:
677:
676:
664:
663:
651:
650:
638:
637:
625:
624:
612:
611:
610:
597:
596:
595:
578:Olindias formosa
565:
559:
558:
548:
529:10.1002/rmv.2170
508:
502:
501:
499:
498:
483:
477:
476:
474:
456:
432:
426:
423:Flower hat jelly
419:
408:
398:
392:
381:
362:
348:
339:
329:
240:O. sambaquiensis
207:flower hat jelly
195:
187:
185:Olindias formosa
161:
141:O. formosus
58:
57:
44:
32:
21:
18:Olindias formosa
808:
807:
803:
802:
801:
799:
798:
797:
793:Hydrozoan stubs
773:
772:
771:
770:
713:
711:
706:
698:
693:
685:
680:
672:
667:
659:
654:
646:
641:
633:
628:
620:
615:
606:
605:
600:
591:
590:
585:
572:
562:
510:
509:
505:
496:
494:
485:
484:
480:
434:
433:
429:
420:
411:
399:
395:
382:
365:
349:
342:
330:
323:
319:
310:
253:
170:
163:
157:
144:
52:
28:
23:
22:
15:
12:
11:
5:
806:
804:
796:
795:
790:
785:
775:
774:
769:
768:
761:
754:
746:
743:
742:
725:
708:
707:
705:
704:
691:
678:
665:
652:
639:
626:
613:
598:
582:
580:
574:
573:
568:
561:
560:
503:
478:
427:
409:
393:
363:
340:
320:
318:
315:
309:
306:
252:
249:
201:
200:
199:
198:
190:
179:
178:
172:
171:
164:
153:
152:
146:
145:
138:
136:
132:
131:
124:
120:
119:
114:
110:
109:
104:
100:
99:
94:
90:
89:
84:
80:
79:
74:
70:
69:
64:
60:
59:
46:
45:
37:
36:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
805:
794:
791:
789:
786:
784:
781:
780:
778:
767:
762:
760:
755:
753:
748:
747:
741:
739:
735:
731:
726:
723:
719:
714:
701:
696:
692:
688:
683:
679:
675:
670:
666:
662:
657:
653:
649:
644:
640:
636:
631:
627:
623:
618:
614:
609:
603:
599:
594:
588:
584:
583:
581:
579:
575:
571:
566:
556:
552:
547:
542:
538:
534:
530:
526:
522:
518:
514:
507:
504:
493:
489:
482:
479:
473:
468:
464:
460:
455:
450:
446:
442:
438:
431:
428:
424:
418:
416:
414:
410:
407:
403:
397:
394:
391:
387:
380:
378:
376:
374:
372:
370:
368:
364:
361:
360:The full text
357:
353:
347:
345:
341:
337:
333:
328:
326:
322:
316:
314:
307:
305:
302:
298:
294:
291:
290:
284:
280:
277:
270:
265:
257:
250:
248:
245:
242:
241:
236:
232:
228:
224:
220:
216:
212:
208:
194:
191:
186:
183:
182:
180:
177:
173:
168:
162:
160:
154:
151:
150:Binomial name
147:
143:
142:
137:
134:
133:
130:
129:
125:
122:
121:
118:
115:
112:
111:
108:
105:
102:
101:
98:
95:
92:
91:
88:
85:
82:
81:
78:
75:
72:
71:
68:
65:
62:
61:
56:
51:
47:
43:
38:
33:
30:
19:
738:expanding it
727:
712:
577:
520:
516:
506:
495:. Retrieved
491:
481:
447:(1): 27347.
444:
440:
430:
396:
355:
351:
311:
287:
285:
281:
273:
246:
244:small fish.
238:
210:
206:
204:
192:
188:(Goto, 1903)
184:
158:
156:
140:
139:
127:
107:Limnomedusae
29:
682:SeaLifeBase
602:Wikispecies
235:Jeju Island
215:hydromedusa
783:Olindiidae
777:Categories
497:2023-12-01
317:References
269:blacklight
219:Olindiidae
196:Goto, 1903
117:Olindiidae
537:1052-9276
463:2045-2322
276:tentacles
231:Scyphozoa
223:jellyfish
135:Species:
73:Kingdom:
67:Eukaryota
730:Hydrozoa
661:10403863
587:Wikidata
555:33350017
352:Olindias
293:hydroids
289:Olindias
227:Hydrozoa
176:Synonyms
128:Olindias
113:Family:
97:Hydrozoa
87:Cnidaria
83:Phylum:
77:Animalia
63:Domain:
648:2266804
593:Q389105
546:7536930
472:4895151
301:Budding
169:, 1903)
123:Genus:
103:Order:
93:Class:
700:285107
635:203310
553:
543:
535:
469:
461:
728:This
695:WoRMS
687:93687
674:50766
656:IRMNG
622:497VX
523:(2).
734:stub
669:ITIS
643:GBIF
551:PMID
533:ISSN
459:ISSN
205:The
167:Goto
630:EoL
617:CoL
541:PMC
525:doi
467:PMC
449:doi
402:doi
386:doi
779::
697::
684::
671::
658::
645::
632::
619::
604::
589::
549:.
539:.
531:.
521:31
519:.
515:.
490:.
465:.
457:.
443:.
439:.
412:^
366:^
343:^
324:^
765:e
758:t
751:v
740:.
557:.
527::
500:.
475:.
451::
445:6
404::
388::
338:.
209:(
165:(
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
