. College collection of palaeontology. . MOLLUSCA. Pleurotoma demidiata, Broc. This genus, of which 500 species are now living, has a fusiform shell with a long canal, and eyes at the base of widely-separated tentacles. It is the type of the family Pleurotomldse. Miocene, Soos, Austria. No. 267. Pleurotoma ttirricula, Broc. Miocene Tertiary, Baden. No. 268. Conus striatulus, Broc. The large family Conidae are principally tropical. This genus dates from the Cretaceous. Upper Pliocene, Colli, Artesi, Italy. No. 269. [608, Cast]. Rostellaria carinata, Mant. This genus belongs to the family Stromb
. College collection of palaeontology. . MOLLUSCA. Pleurotoma demidiata, Broc. This genus, of which 500 species are now living, has a fusiform shell with a long canal, and eyes at the base of widely-separated tentacles. It is the type of the family Pleurotomldse. Miocene, Soos, Austria. No. 267. Pleurotoma ttirricula, Broc. Miocene Tertiary, Baden. No. 268. Conus striatulus, Broc. The large family Conidae are principally tropical. This genus dates from the Cretaceous. Upper Pliocene, Colli, Artesi, Italy. No. 269. [608, Cast]. Rostellaria carinata, Mant. This genus belongs to the family Strombidse, and was nearly twenty times more abundant in former geological times than in our own; during the Creta- ceous period it was represented by some very ex- treme forms, of which the present specimen is one. From the Gault, Folkestone, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ward's Natural Science Establishment, inc. Rochester
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