Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0101clau Year: 1884 258 CCELENTERATA. Fam. Lucernaridae. Lucernaria 0. Fr. M tiller, Calycozoa with four radial chambers ; without genital pouches, and without the accessory chambers of the digestive cavity alternating with these. L. qun/Jricunt/.t 0. Fr. Miiller. campanulata Lmx. Craterolo^lnix Clark, with genital pouches and four chambers of the gastric cavity alterna- ting with them. Cr. Li-ni-ltarti Tschb. —lielgolandica Lkt., Heligoland. The Lucaniar'ni are without exception marine animals, and are rem
Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0101clau Year: 1884 258 CCELENTERATA. Fam. Lucernaridae. Lucernaria 0. Fr. M tiller, Calycozoa with four radial chambers ; without genital pouches, and without the accessory chambers of the digestive cavity alternating with these. L. qun/Jricunt/.t 0. Fr. Miiller. campanulata Lmx. Craterolo^lnix Clark, with genital pouches and four chambers of the gastric cavity alterna- ting with them. Cr. Li-ni-ltarti Tschb. —lielgolandica Lkt., Heligoland. The Lucaniar'ni are without exception marine animals, and are remarkable for their great reproductive power. Accord- ing to A. Meyer, if the stalk be cut off, the cup reproduces a new one. and injured individuals, and even excised pieces, can become perfect animals. (2) Sub-order: Marsupialida (Lobophora}. Tetra-radiate Acalepha having a four-sided pouch-like form. The velum has a smooth margin, and contains vessels prolongations of the gastro-vascular systeni\. On the margin of the disc there are four vertically placed lobe-like appen- dages. There are four covered sense organs, and the same number of vascular pouches separated by nar- roio partition ivalls. The Charybdei? are distinguished by the deep bell shape of their body, and were formerly reckoned as ' Craspedota ' among the Hydro- medusce, with which they certainly 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. \,aryide<i ma™n,iaih, natural Qn the other hand, the presence of size. T, Tentacles ; Kk, marginal bodies . (sense organs); Ov, ovaries. the gastric filaments and of the large sense organs enclosed in niches points to a relationship with the Acalepha; and this view is supported by the character of their whole structure, in which the peculiarities of the Lucernaridw are perceptible, though greatly
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