Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . the lower beds of the greensand. 7. Venus parva, from Shanklin Cliff. DESCRIPTION OF FIG. 388. 1. Thetis minor, from the ferruginous sand-rock at the base of Shanklin Cliff. 2. Another view of the same, to show the beaks and hinge-line. 3. Exogyra sinuata, represented one-fourth the natural size ; it is often found much larger. From the greensand at Shanklin, Ventnor,Sandown, &c. 4. Tornatella albensis, from the Cracker Rocks, Atherfield.
Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . the lower beds of the greensand. 7. Venus parva, from Shanklin Cliff. DESCRIPTION OF FIG. 388. 1. Thetis minor, from the ferruginous sand-rock at the base of Shanklin Cliff. 2. Another view of the same, to show the beaks and hinge-line. 3. Exogyra sinuata, represented one-fourth the natural size ; it is often found much larger. From the greensand at Shanklin, Ventnor,Sandown, &c. 4. Tornatella albensis, from the Cracker Rocks, Atherfield. 5. Terebratula sella ; an abundant shell in the sand at Atherfield. 6. Nucula scapha, from the sand-rock, Atherfield. The three follow ina shells are embedded in a fragment of the Cracker Rock, from Atherfield. 7. Natica Pterocera retusa. 9. Rostellaria Robinaldini, 10. Cerithium turriculatum, from Atherfield. 11. Ancyloceras gigas, from Atherfield. The figure is one-third the size, linear, of the original. This fossil is often found two feet in length,associated with Ammonites equally gigantic. 412 GEOLOGICAL SUCCESSION OF Fig. 389.—Fossil shells and Mammalian remains, from the fresh-waterstrata of the Isle of Wight. OF NATURE. 413 DESCRIPTION OF FIG. 389. FOSSIL SHELLS AND TEETH OF MAMMALIA, FROM THE KRESI1-W^ FEUEOCENE STRATA OF THE ISLE OF WIGHT. SHELLS. Fig. 1.—Potomomya gregaria ; from Headon Hill. This shell is described by Mr. Sowerby in Mineral Conchologyas Mya gregaria. The genus Potomomya (river mussels)comprises those species which inhabit rivers only, and are notfound in estuaries and brackish waters. 2.—Potamides concavus ; Headon Hill. 3.—Melanopsis fusiformis ; Headon Hill. 4. brevis ; Headon Hill. 5.—Neritina concava ; Colwell Bay. 6.—Melanopsis carinata ; Colwell Bay. 7.—Helix globosus ; Shalfleet. 8.—Potamidesplicatus ; Headon Hill. 9. ventricosus ; Headon Hill. MAMMALIAN REMAINS 10.—Upper canine tooth of Anoplotheriu
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1870
