The royal natural history . with a few white spots, and a pale or bluish border to the lobes. In the Philinidce, as typified by PInline, the shell is very thin, and wholly concealed beneath the mantle. In form it somewhat resembles Bulla, but has the aperture larger. P. aperta, a very common British species, lives in shallow water all round the coast, feeding upon foraminifera and even small sea-urchins. The animal is white, has a very large frontal-shield, but no tentacles or eyes. It is provided, as in the case of Scaphander, with a powerful gizzard. The ova, which are very numerous, are dep
The royal natural history . with a few white spots, and a pale or bluish border to the lobes. In the Philinidce, as typified by PInline, the shell is very thin, and wholly concealed beneath the mantle. In form it somewhat resembles Bulla, but has the aperture larger. P. aperta, a very common British species, lives in shallow water all round the coast, feeding upon foraminifera and even small sea-urchins. The animal is white, has a very large frontal-shield, but no tentacles or eyes. It is provided, as in the case of Scaphander, with a powerful gizzard. The ova, which are very numerous, are deposited in a single series, in a long and loosely-twisted cord, enclosed within an ovoid, gelatinous capsule. The sea-hares {Aplysiidce), so called on account of a slight resemblance to acrouching hare, and not for their nimbleness of foot, are elongate creatures, witha long neck, distinct head, oral and dorsal tentacles, and furnished beneath themantle with a shelly plate to protect the branchiae. The mouth is provided with. Philine aperta (nat. size).
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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectzoology
