The Anatomy of Pleurotomaria Beyrichii, Hilg
1901; The Company of Biologists; Volume: S2-44; Issue: 174 Linguagem: Inglês
10.1242/jcs.s2-44.174.215
ISSN1477-9137
Autores Tópico(s)Marine Biology and Ecology Research
ResumoABSTRACT The vast antiquity which characterises the genus Pleurotoinaria—for no one can doubt the identity of the living and fossil shells which are customarily grouped together under this name—has justly endowed this mollusc with great interest for those studying the ancestry of the Prosobranchia. When, therefore, a living example was obtained by Agassiz in 1871, and later in 1879 several specimens of both P. Quoyana and P. Adansoniana were dredged by the United States steamer “Blake,” the result of an investigation of the anatomy of these forms was awaited with great interest. Unfortunately, however, the specimens all turned out to be in a bad state of preservation, and although falling into such skilled hands as those of Dr. Dall, it was found impossible to make out much of their anatomy. Dall, however, published 1 figures and descriptions of the external characters of the animals, of the radulæ and of some few points in connection with the pallial complex, the rest of the body being too much decomposed for investigation.
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