 | Academy of Natural Sciences of Philadelphia - 1858 - 280 sider
...dark elate color, almost black on the head and tentacles; a black line running along each side of th* back from the base of the longer tentacles; body covered...black, acutely pointed : eyes at the base of superior tenladtt : anatomy believed to resemble, somewhat, that of the Lyumiadre. Gregarious; in its habits... | |
 | Amos Binney - 1859 - 304 sider
...tentacles ; a black line running along each side of the back from the base of the longer tentaeles ; body covered with compressed granules ; tentacles...half the time required by the other species." HELIX DEVIA GOULD vol. iii. p. 11, pi. Ixxix. flg. 18. Helix devia PFEIFFER, 1. c. iii. 262. GOULD, Addenda,... | |
 | 1863 - 720 sider
...some other shell, as his observations do not agree with those given on p. 171 (vid. Notes, p. 8). " Animal twice as long as the breadth of the shell,...anatomy believed to resemble, somewhat, that of the Lymniadte. Gregarious ; in its habits resembling Lymneea, being found always near water, and laying... | |
 | 1863 - 710 sider
...other shell, as his observations do not agree with those 'given on p. 171 (vid. Notes, p. 8). pressed granules ; tentacles black, acutely pointed ; eyes...the Lymniadae. Gregarious ; in its habits resembling Lymnsea, being found always near water, and laying its eggs on the water-cresses and other aquatic... | |
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Animal twice as long as the breadth of the shell, dark slate color, almost black on the head and tentacles; a black line running along each side of the back from the base of the longer tentacles ; body covered with compressed granules ; tentacles black,... 