Medusae of the world . . .487 coccometra 48S Syncoryne sarsii 488 Sarsia pulchella 488 Ectopleura dutnortieri .488 Moerisia 488 lyonsi 488 Slabberia brownei 489 Zanclea gemmosa 489 Heterotiara vagans. .490Stomotoca .490 divisa 490 Dissonema turrida . . .490Dendroclava dohrni. .490 Turris-Clavula 491 Clavula fontata 491 papua 491 Sibogita typa 491 Cytaeis vulgaris 492 Podocorvne carnea 492 anechinata . . .492 Lymnorea alexandri 492 Bougainvillia fulva 492 fruticosa 493 Nemopsis 493 Rathkea octopunctata 493 Scrippsia 493 pacifica 493 Ptychogena californica 494
Medusae of the world . . .487 coccometra 48S Syncoryne sarsii 488 Sarsia pulchella 488 Ectopleura dutnortieri .488 Moerisia 488 lyonsi 488 Slabberia brownei 489 Zanclea gemmosa 489 Heterotiara vagans. .490Stomotoca .490 divisa 490 Dissonema turrida . . .490Dendroclava dohrni. .490 Turris-Clavula 491 Clavula fontata 491 papua 491 Sibogita typa 491 Cytaeis vulgaris 492 Podocorvne carnea 492 anechinata . . .492 Lymnorea alexandri 492 Bougainvillia fulva 492 fruticosa 493 Nemopsis 493 Rathkea octopunctata 493 Scrippsia 493 pacifica 493 Ptychogena californica 494 Obelia purpurea 494 nigrocaulus 494 • ...487-498 Obelia commissuralis 494 bifurca 495 Tiaropsis kelseyi 495 Phialidium languidum 495 Phialopsis 495 diegensis 495 Eucheilota bakeri 495 Eutima brownei 495 campanulata ( ?).. 495 modesta 496 Eirene pellucida 496 Tima lucullana 497 /Equorea parva 497 Amphogona pusilla 497 Liriope rosacea 497 haeckeli 497 Gonionemus .498yEginopsis laurentii 498. MEDUSAE OF THE WORLD. THE HYDROMEDUSAE. Order (Continued). Family EUCOPIDAE Gegenbaur, 1856. Eucopidtf, Gegenbaur, 1856, Zeit. fiir wissen. Zool., Bd. 8, p. 241.—Haeckel, 1879, Syst. der Mcdusen, p. 161.—Maas, 1897,Mem. Museum Comp. Zool. at Harvard College, vol. 23, p. 20; 1905, Craspedoten Medusen der Siboga Exped., , p. 31. FAMILY CHARACTERS. Leptomedusae with lithocysts, and with less than 8 radial-canals upon which the gonadsare developed. The great majority of these medusae have 4 radial-canals, and none are known to havemore than 6 radial-canals. They develop through alternation of generations from Cam-panularian hydroids. The Eucopidae are possibly derived from the more simply organizedThaumantiadae. Indeed, the young medusae of the subfamily Eireninae of the Eucopidae lackmarginal lithocysts, and in this respect resemble the adult stages of the medusae ot the Thau-mantiadae. Asexual budding is exceedingly rare in the medusae of the Eucopidae. I
Size: 1586px × 1575px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectcnidari, bookyear1910
