The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy . hehinge assume a longitudinal direction. [In CucuUaea the two valves arenot exactly alike, and there does not appear to be a byssus, whence Sowerby doubts the propriety of arranging this genus with the ] We ought probably to separate also such species as have well-marked ribs, and whose valves meet closely and completely, for there is thus reason to believe that the animal is not fixed, and may rather resemble that of the Pectunculus. There is assur
The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy . hehinge assume a longitudinal direction. [In CucuUaea the two valves arenot exactly alike, and there does not appear to be a byssus, whence Sowerby doubts the propriety of arranging this genus with the ] We ought probably to separate also such species as have well-marked ribs, and whose valves meet closely and completely, for there is thus reason to believe that the animal is not fixed, and may rather resemble that of the Pectunculus. There is assuredly still greater reason to sepa- ., _^, ^^^^^^^^^^^^^ rate the .i4*ra ?or?MOffrt, Chem., because of its peculiar figure, and f^^:t) I^^^^^^^^^K^. its unequally oblique valves. (It is the type of the genus Trisis of Oken.) Pectunculus, Lam.—Has the hinge in a curved line, and the shell of a lenti-cidir form. The valves close exactly, and their apices arenear each other. The animal {Axinea, Poli) has a largecompressed foot, with a double lower margin, and is hencecapable of creeping. It lives in sand. We have somenative —Area barbatn.
Size: 1846px × 1354px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorwe, bookcentury1800, bookdecade1840, booksubjectanimals
