. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. TUNICATA. 1187 DICHITONIDA. —Family ASCIDIAD^E, E. Forbes. Synonyms: Tethyes simples, Savigny; Ascididfc, MacLeay ; Tuniciers libres on As- cidienx, Lamarck; Ascidiaria, Stark; " lex Iso- lees" Cuvier ; Ascidiacea, pars, Blainville ; tliis family : — Ascidiens simples, Milne Edwards ; Ascidicnx, Van Beneden. Body simple, fixed ; animals isolated or gregarious ; not united into groups by a com- mon integument; oviparous, not gemmipa- rous. The following genera are members of ASCIDIAD^E, vel ASCIDI/E SIMl'MCES Br
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. TUNICATA. 1187 DICHITONIDA. —Family ASCIDIAD^E, E. Forbes. Synonyms: Tethyes simples, Savigny; Ascididfc, MacLeay ; Tuniciers libres on As- cidienx, Lamarck; Ascidiaria, Stark; " lex Iso- lees" Cuvier ; Ascidiacea, pars, Blainville ; tliis family : — Ascidiens simples, Milne Edwards ; Ascidicnx, Van Beneden. Body simple, fixed ; animals isolated or gregarious ; not united into groups by a com- mon integument; oviparous, not gemmipa- rous. The following genera are members of ASCIDIAD^E, vel ASCIDI/E SIMl'MCES Branchiae not plicated Branchiae plicated - Genus Ascidia, Baster and Linnaeus. — " Rarely," says Professor E. Forbes, " is the dredge drawn up from any sea bed at all pro- lific in submarine creatures, without contain- ing few or man)' irregularly shaped leathery bodies, fixed to sea-weed, rock, or shell, by one extremity or by one side, free at the other, and presenting two more or less pro- minent orifices, from which, on the slightest pressure, the sea-water is ejected with great force. On the sea shore, when the tide is out, we find similar bodies attached to the under surface of rough stones. They are variously, often splendidly, coloured ; but otherwise are unattractive, or even repulsive, Fig. Ascidia mammillata. (Original.) a, branchial orifice, open; b, anal orifice, closed. in aspect. These creatures are Ascidia;, pro- perly so called. Numbers of them are often found clustering among tangles, like bunches of some strange semitransparent ; Some species (in France, vu/go " le vichet") on the f Sessile 1 Pedunculated f Ascidia.* " { Molgula. f Cynthia. - -J Dendrodoa. [ Chfhosoma. (Bo tenia. Cystingia. Bipapillaria. coasts of the Channel -j- and the Mediterra- nean, and in the Chinese Seas, are valued as articles of food In this genus (fig. 766.) the body is sessile ; test, coriaceous or gelati- nous ; branchial orific
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