. Elementary text-book of zoology, general part and special part: protozoa to insecta. Animals. 258 CQ:L:ENTEnATA. Fam. Lucernaridae. Lvcernaria 0. Fr. Miiller, Calycozoa with four radial chambers ; without genital pouches, and witliout the accessory chambers of the digestive cavity alternating with these. L. quadrlcuriiis 0. Fr. JJiiUer, camj)amdafa Lmx. Cratcrolophus Clark, with genital pouches and four chambers of the gastric cavity alterna- ^-(^ft^â ^^^^ ting with them. Cr. Leuckarti Tschb. ^ ^s?^ ^ZJX =hclgoIandical.\it.,\\go\ ill The Lncernaria are without exception Mlm â marine
. Elementary text-book of zoology, general part and special part: protozoa to insecta. Animals. 258 CQ:L:ENTEnATA. Fam. Lucernaridae. Lvcernaria 0. Fr. Miiller, Calycozoa with four radial chambers ; without genital pouches, and witliout the accessory chambers of the digestive cavity alternating with these. L. quadrlcuriiis 0. Fr. JJiiUer, camj)amdafa Lmx. Cratcrolophus Clark, with genital pouches and four chambers of the gastric cavity alterna- ^-(^ft^â ^^^^ ting with them. Cr. Leuckarti Tschb. ^ ^s?^ ^ZJX =hclgoIandical.\it.,\\go\ ill The Lncernaria are without exception Mlm â marine animals, and are remarkable for â KJ ( I their great reproductive power. Accord- flHI/ I . ing to A. Meyer, if the stalk be cut off, ffl \ \ the cup reproduces a new one, and 11 f P injured individuals, and even excised fI / ,j^ \\ pieces, can become perfect animals. (2) Sub-order: Marsupialida {Lobo2}/iora). Tetra-radiate Acalej^Jia having a four-sided pouch-like form. The velum has a smooth margin, and contains vessels [prolongations of the gastro-vascidar system]. On the margiii of the disc there a/)'e four vertically placed lobe-like appenr dages. There are four covered sense- organs, and the same number of vascular pouches separated by nar- roio partition walls. The Charybdece are by the deep bell t-hape of their body, and were formerly reckoned as " Craspedota " among the Hydro- medusoe, with Avhich they ceitainly have some characteristics in com- mon. Amongst these character- istics the most striking is the possession of a smooth-edged velum^ which, however, contains vessels. Fig. \°i^.-CharyUea marsupiaiis, natural Qn the Other hand, the presence of size. T, Tentacles; Rk, marginal bodies ⢠i .. (sense organs); Oo, ovaries. the gastric filaments and of the large sense organs enclosed in niches points to a relationship with the Acalepha ; and this view is suppoi-ted by the character of their whole structure, in which the peculiarities o
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanimals, bookyear1892
