Chapter 8 Pelagic Mollusca "brighter than glass, and yet, as glass is, brittle" Department of Oceanography
Chapter 8 Pelagic Mollusca "brighter than glass, and yet, as glass is, brittle" Department of Oceanography
References Lalli, C.M. & Gilmer, R.W. (1989) Pelagic Snails. The biology of holoplanktonic gastropod molluscs. Stanford University Press: Stanford, California. 张福绥, 1964. 中国近海的浮游软体动物 I. 翼 足类、异足类及海蜗牛类的分类研究. 海洋科 学集刊, 5: 125 - 226
References Lalli, C.M. & Gilmer, R.W. (1989) Pelagic Snails. The biology of holoplanktonic gastropod molluscs. Stanford University Press: Stanford, California. 张福绥, 1964. 中国近海的浮游软体动物 I. 翼 足类、异足类及海蜗牛类的分类研究. 海洋科 学集刊, 5: 125 - 226
Introduction In the molluscan phylum the holoplanktonic species do not form a group on their own, but representatives of various taxonomic groups independently developed a holoplanktonic way of life. The most important among them are the so-called 'Pteropoda', an obsolete, but quite practical name for what is officially indicated as Mollusca, Thecosomata. Also the many species of the Heteropoda are holoplanktonic. Finally, a restricted number of species within the large group of the Nudibranchia have the same way of life
Introduction In the molluscan phylum the holoplanktonic species do not form a group on their own, but representatives of various taxonomic groups independently developed a holoplanktonic way of life. The most important among them are the so-called 'Pteropoda', an obsolete, but quite practical name for what is officially indicated as Mollusca, Thecosomata. Also the many species of the Heteropoda are holoplanktonic. Finally, a restricted number of species within the large group of the Nudibranchia have the same way of life
Gastropoda（腹足纲） Opisthobranchia（后鳃亚纲） Pteropoda（翼足目） Gastropeteridae（腹翼螺 科） Phyllirrhoidae（波叶海牛科） Glaudidae（海 神鳃科） Prosobranchia（前鳃亚纲） Heteropoda（异足亚目）Janthiniidae（海蜗牛科）
Gastropoda（腹足纲） Opisthobranchia（后鳃亚纲） Pteropoda（翼足目） Gastropeteridae（腹翼螺 科） Phyllirrhoidae（波叶海牛科） Glaudidae（海 神鳃科） Prosobranchia（前鳃亚纲） Heteropoda（异足亚目）Janthiniidae（海蜗牛科）
Pteropoda 翼足类 a pair of parapodium is modified as a swimming organ (fin) visceral mass are anisomerous the nerves are not twisted (detorsion) hermaphrodite larval stage
Pteropoda 翼足类 a pair of parapodium is modified as a swimming organ (fin) visceral mass are anisomerous the nerves are not twisted (detorsion) hermaphrodite larval stage