The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . the Ascidtx Sal/ji/ormcs (Ptjrosoma) are much moreclosely related to the lyi)ical Coni[iouJid Ascidians than to the othcipelagic Tvmaita, viz., the Larvucca and the Tluiliacca , and (3) theAscidix CompoMX form a iKilyphylctit pou)). the sections ofwhich have arisen at several distinct points from the ancestralSimple Ascidians. Ihbhogmjhy.—(/) Cu\*ier, Mfem. s. les Ascidles, 4c.
The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . the Ascidtx Sal/ji/ormcs (Ptjrosoma) are much moreclosely related to the lyi)ical Coni[iouJid Ascidians than to the othcipelagic Tvmaita, viz., the Larvucca and the Tluiliacca , and (3) theAscidix CompoMX form a iKilyphylctit pou)). the sections ofwhich have arisen at several distinct points from the ancestralSimple Ascidians. Ihbhogmjhy.—(/) Cu\*ier, Mfem. s. les Ascidles, 4c., m Hevi. rf. N\t£., volil. p. 10. raris, 1813; {^) Savigny, MtmciTCi sur Ics Anivmvz sir/ij i-crUbra, pt-ii. fasc. i., Paris. ISlC; ifi I^arnarck,//«(. iVa/. d. Anim. muls Veriehr^s. 1st , 1815 ;3; U) O. F , ZmI Danica. vol. iv., 1S06; (;) Miliie-Ed-\vanls. Obscrv. s. Ics Ascidies Compnsces, Ac, iu A/rm. Acad .Sci., Paris,VOL \\\., \b\2, (0) SeliiTinlt. Zur vergl. rhysiol. rf. KirUlloi. Thiere. Biins- l By Dohm and others their point of origin is placed considerably furtherup on tlie -sttMii of the , thus Causing Uic Tuiiicata to be regarded a»\try degeueiate Kcrtt^miti (sec J^).. I T U N —T U N 619 wick. 1S45 ; (7) Lowig and Kollibcr, De la &c., d. Envei. d. Tun.,ID Ann. .^- So:., ser. ill. (ZooL). vol. v., 1846; {S) Hiutley. PhiL Trans., 1861;(9) Kowaievsky. EntFickel. d. einf. Ascid., m Mem. St Itursb. Acad. Sc,ser. vu., vol. X., 1S06: (/o) J. P. vao Beneden. Rech. 8. &c.,d. A2C. 10 Mem. Acad. Roy. Bdg., vol. XX., 1S47 ; (//) Krohn, m and MaJIers^ncAtr. 1S52; Uz) Kupffer. Arch. f. mikr Anal., ^; (/J) Giant, Etude d. tinv. Embryolog d. Tun , leer in Ard\ ZooL£ /ol. I., 1872; (z^) Fol, Etudes sur les Appcodiculaires du Detroit deMessioe. in Mem. Soc Phys. HisL SaL Centre, vol- xxi . {/j) Gtard. Re-chejTches s. I. Asc. Comp , in ArtK, Zool. Erptr., vol. 18T2 . {t6) Von Drasche-Die Synas
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