. Mollusca ... Mollusks. 494 TAGINULIDJS. base of the ovary likewise has not been ascertained, but no doubt is left that the female genital orifice does not occur on the lower surface of the mantle, as is the case without exception in all Vcifjimdi, an anatomical feature of sufficient importance to warrant generic separation. The male organ is near the head (fig. 160^5, m, n, o) and, with the external aperture, placed directly behind the lower tentacle; it consists here of a penis (fig. leC B, n), very small as compared with. Fig. 161.—Leonardia nemlUaiia. (Copied from Ann. Mils. Civ. Geneva.)
. Mollusca ... Mollusks. 494 TAGINULIDJS. base of the ovary likewise has not been ascertained, but no doubt is left that the female genital orifice does not occur on the lower surface of the mantle, as is the case without exception in all Vcifjimdi, an anatomical feature of sufficient importance to warrant generic separation. The male organ is near the head (fig. 160^5, m, n, o) and, with the external aperture, placed directly behind the lower tentacle; it consists here of a penis (fig. leC B, n), very small as compared with. Fig. 161.—Leonardia nemlUaiia. (Copied from Ann. Mils. Civ. Geneva.) the size of the animal—perhaps dependent upon seasonal change— and a curious and relatively enormous multifid gland (fig. 160* B, m) communicating with it. Tliis gland has also been observed in many species of Vaginulus but in the present case it attains an exceptional development. It consists of a vestibule 7 mm. long, with a diameter of about 2-5 mm. which gradually increases and from which from 60 to 70 cseca branch off lilce the roots of a tree- trunk (fig. 160'' a) of a pearly white, long, filiform (about ^ mm. in diameter), densely ramified, folded upon themselves at various intervals and gathered into a bundle by a pellucid Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Blanford, William Thomas, 1832-1905; Godwin-Austen, Henry Haversham, 1834-1923; Gude, Gerard Kalshoven, 1858-; Preston, Hugh Berthon, 1871-. London, Taylor and Francis; [etc. , etc. ]
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