| 英文.... | Class of sac-like marine filter feeders characterized by a tough outer "tunic" made of the polysaccharide tunicin, as compared to other tunicates which are much less robust. They have with some primitive vertebrate features, found in all seas from the intertidal zone to the greatest depths. The tadpole-like larvae are free-swimming and have a notochord (a flexible, rod-like structure common to all vertebrates) and a nerve cord in the tail. When the larva finds a place to settle, it attaches itself with a sucker; the tail with its notochord and nerve cord is absorbed and disappears. They are commonly found on pier pilings, ships' hulls, rocks, large seashells, and the backs of large crabs. Some species live individually; others live in groups or colonies. Adults have functional male and female reproductive organs; fertilization occurs when eggs are shed into the water and come into contact with sperm from another individual. |
| 海鞘綱 (綱)............ | [AS-Academia Sinica] |
| ................. | 國家教育研究院-樂詞網 September 2, 2011 |
| ................. | 智慧藏百科全書網 September 2, 2011 |
| ................. | 大英百科全書線上繁體中文版 September 2, 2011 |
| ................. | 脊椎動物學(上) 18 |
| 海鞘............ | [AS-Academia Sinica] |
| ................. | 國家教育研究院-樂詞網 September 2, 2011 |
| ................. | 智慧藏百科全書網 September 2, 2011 |
| ................. | 大英百科全書線上繁體中文版 September 2, 2011 |
| Ascidiacea(class)............ | [VP] |
| ................. | CDMARC Subjects: LCSH (1988-) |
| ................. | Webster's Third New International Dictionary (1961) |
| ................. | Encyclopedia Britannica Online (2002-) accessed 11 August 2008 |
| sea squirts............ | [VP] |
| ................. | Collier's Encyclopedia (1950) illustration, Vol. 2, 252 |
| ................. | CDMARC Subjects: LCSH (1988-) |
| ................. | Oxford English Dictionary (1989) |
| ................. | Thesaurus of Park, Recreation, and Leisure Service Terms (1990) Use Ascidians Bt invertebrates |
| ................. | Webster's Third New International Dictionary (1961) |
| ................. | Random House Unabridged Dictionary (1993) |
| ................. | Oxford English Dictionary Online (2002-) |
| sea squirt............ | [VP] |
| ................. | Getty Vocabulary Program rules |
| sea-squirts............ | [VP] |
| ................. | Judge and Toyne, Oxford Illustrated Encyclopedia (1985) 2:302 |
| ................. | Oxford English Dictionary Online (2002-) accessed 11 August 2008 |
| Ascidiae............ | [VP] |
| ................. | Webster's Third New International Dictionary (1961) |
| ascidians............ | [VP] |
| ................. | Collier's Encyclopedia (1950) illustration, 2:252 |
| ................. | CDMARC Subjects: LCSH (1988-) |
| ................. | Thesaurus of Park, Recreation, and Leisure Service Terms (1990) |
| ................. | Webster's Third New International Dictionary (1961) |
| ................. | Random House Unabridged Dictionary (1993) under "sea squirt" entry. |
| squirts, sea............ | [VP] |
| ................. | Getty Vocabulary Program rules |