OCR Text |
Show 680 ON THE PECULIARITIES OF MADEIRAN ACHATINcE. [Dec. 7. LOVEA (ACHATINA) TORNATELLINA, Lowe. Colour darkish grey, somewhat speckled, extending along above the foot to the tail-gland; the foot is gelatinous, translucent, lighter grey. Mantle whitish with a very slight tinge of grey ; it spreads well out beyond the lips of the aperture and is in perpetual movement upon the shell; it is simple, but extends backwards in a tongue halfway across the second last whorl. Tentacles long, rather fine, the under ones rather short; they and the body finely tubercled. Foot narrow. Tail extending quite to the apex of the shell, very slender, with a gland above just short of the end of the tail. Jaws and radula exactly resemble those of A. melampoides, except that they are smaller. LOVEA (ACHATINA) TRITICEA, Lowe. Colour. General effect blackish ; of the foot translucent white, with a faint tinge of olive-green. Body slightly smoky brownish, a streak of which runs out (above the light edge of the foot) on either side towards the caudal gland, but dies out just before reaching it. Mantle coloured like the body, but rather lighter, stretching out round the aperture so as to embrace the shell. Tentacles short, small, very black, with minute black dots of eyes on the upper point; under tentacles very short, lighter than the the upper ; eyes distinct (?). Body and tentacles very finely tubercled. Foot narrow. Tail long, narrow, ending below in a sharp point, with an abrupt truncation rising obliquely to a sharp angulation above for the caudal gland, which rises just short of the end of the tail. Jaw and radula exactly like those of Lovea melampoides, only smaller. LOVEA (ACHATINA) ORYZA, Lowe. In every thing but colour this species exactly resembles the preceding. Colour. General effect is a slight ruddy brownish, having no part dark but the muscles of the tentacles, of which the upper are dark black grey and the under are light. Mantle is just like the body in colour. The projecting flap covering the caudal gland is very well marked. The upper surface of neck and head and also the tentacles are finely tubercled, while the sides of the head and neck are marked by long fine lines as if the tubercles were there confluent in this form. The eyes are very black and well marked. The animal, like the others which I have observed, crawls slowly and brings up its shell after it by periodic jerks. |