. Elementary text-book of zoology. Zoology. 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. Me
. Elementary text-book of zoology. Zoology. 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. Please note that these images are extracted from scanned page images that may have been digitally en
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
