| OCR Text |
Show POLYPI. light-brown longitudinally streaked with whitish; its form is usually elongated and frequently narrowest below; skin smooth; tentacula numerous. When it contracts, long filaments arising from the ovaries are frequently protruded through the mouth. It usually fixes itself on shells, and is extremely common in the Mediterranean( 1 ). The THALASSIANTHA, Ruppel, are Actinire with ramified ten-tacula( 2). The Dxsooso:MA, Rupp., are Actinire in which the tentacula are almost reduced to nothing by their shortness(3). ZoANTHUS, Cuv. The same fleshy tissue and arrangement of the mouth and tenta· cula as in the Actinire, and a nearly similar organization; but these animals ar~ united in more or less considerable number on a common base, sometimes in the form of a creeping stem( 4 ), and some-times having a broad surface( 5). LucERNARIA, Mull. The Lucernarire should apparently be approximated to the Acti· nire, but their substance is softer; they fix themselves to fuci and other marine bodies by a slender pedicle, and their superior por· tion dilates like a parasol, in the centre of which is the mouth. Nu· tho characters established by observers, and still less to the approximations pro· posed by compilers. (1) Add of nearly certain species, Hydra cereus, Gm.; Grert., Phil. Trans. LII, i, 1; Encyc., LXXIII, 1, 2;-llydra bellis, Phil. Tr::ms. lb., 2; Encyc. lb. 4;Hydraheliant/ tus, Ellis, Phil. Trans., LVII, xix,6, 7; Encyc.,LXXI, 1, 2;-Hydra aster, Ellis., Phil. Trans., LVII, :x.ix, 3; Encyc. LXXI, 3 ;-.9.ctinia varians, Zoo!. Dan., CXXlX;-J.lct. candida, lb., CXV ;-.O.ct. plumosa, lb., LXXXVIII;-.Oct. coccinea, Ib., LXlii, 1, 3;-Act. viridis, Forsk., XXVIf, B; Act. rubra, Brug.; Forsk., lb., A;-Act. maculata, Brug.; Forsk., lb., C;-Actiniaquadricowr, Uuppel, Voy., Moll., pl. i, f. 3, &c. (~) Thal. aster, Ruppel, Moll., pl. i, f, 2. (3) Disc. nummifarme, ld. lb., f. 1. ( 4) Hydra sociata, Gm.; Ell. and Sol., Corall., I, i; Encyc., LXX, t. (5) Alcyonium mammillosum, Ell. and Sol., loc. cit., 4;-.B.lc. digitatum, Id. lb., 6. These. last form the genus P .A.LYTnoE of Larnouroux, and lead to the .Aicyonia:. This genus appears to have been characterized from desiccated specimens. See the great work on Egypt, ZooJ., Polyp., pl ii, f. 1-4. CARNOSI. 391 merous tentacula Uni·ted I·n b dl B un es are bre tween the mouth and tl arranged round its edges lese same edges . . mg creca, proceeding from the sto h are eight organs resem-granulated substance. In the mac and containing a red and 8: ~uadricornis, MUll., Zool. Dan X • ' . ~ is divided into four forked bl' h ., XXIX, I, 6, the edge groups of tentacula. In the a~c es, each of which bearB two L. auricula, Ibid CLII th . buted round an oct~'gonal m' e .ei(gh)t groups are equally distri- . arg1n 1 • ORDER II. GELATIN OS!. The gelatinous Pol · r invested with a firm ypt, uln Ike the preceding ones, are not enve ope ne"th · h fleshy, nor corneous axis in th ~ I. er IS t ere a ligneous, body is gelatinous and m e IlnteriOr of their mass. Their li h ore or ess conical • •ts • P es t e want of a stomach. . ' I cavity sup- HYDRA, Lin. Od f all thf e animals of th.I s c Ia ss, these are d d ~gree o simplicity. A little I . re uce to the greatest Vlded with filaments that act~: ::~~us horn, w~ose edges al'e proapparent organization. The mi cula,_ constitutes their whol~ croscope discovers nothing in their (l) Add Lute;<. fascicularis Fl • panula, Lamouroux Mem d 'M emmg., Werner. Soc., n, xvlii 1 2·-.Lu Groen! ' , u us., II, xvi The Lu . ' ' ' c. cam· Lamo~~:45, sthhould, apparently, form a~other ge cemana pkrygia, Fab.; Faun. x on ese Zoophytes' in the M~,.. m. d u nus. See the Memoir of M Mus., 11. · |
