Report on paleontology . ont and back views of a very large specimen from Crosswicks, in the Columbia View of a smaller specimen. Collection Acad. Nat. Sci., Phila. Cyhchna kecta Gabb (p. 164). 10, H. Two views of the type specimen enlarged two diameters. Dentauum (Falcdla) falcatum Conrad (p. 169). 12,14. View of stnaU much curved specimen, all Views of the larger portion of three individual oasts. 16. Portion of a partial cast, looking on the back and showing striae of growth. Acad. Phila. Dentalium subarcuatum Conrad (p. 166). 19. View of a crushed
Report on paleontology . ont and back views of a very large specimen from Crosswicks, in the Columbia View of a smaller specimen. Collection Acad. Nat. Sci., Phila. Cyhchna kecta Gabb (p. 164). 10, H. Two views of the type specimen enlarged two diameters. Dentauum (Falcdla) falcatum Conrad (p. 169). 12,14. View of stnaU much curved specimen, all Views of the larger portion of three individual oasts. 16. Portion of a partial cast, looking on the back and showing striae of growth. Acad. Phila. Dentalium subarcuatum Conrad (p. 166). 19. View of a crushed shell from Haddonfleld, New Jersey. 20. View of a shell showing the curvature. 21,22. Opposite sides of casts showing the internal features described. 23,24. Enlargement of the surface of Pig. 19, and transverse section of the same. Acad. , Phila. Bbrpula (Diploconcha) cretacea Conrad f (p. 170). 25. View of the specimen described showing the general U. S. GEOLOGICAL SURVE ONO&RAPH XVIII PLATE ). TORNATELLID^, CYLICHNIDE. BULLID/E, AND DENTALIID/E OF THE LOWER GREENSAND MARLS. PLATE XXI. EXPLAifATIOlSr OF PLATE XXI. Pebissolax teivolva Gabb (p. 172). Fig. 1. View of Mr. Gabbs type specimen from the collection of the Acad. Nat. Sol., Phila. 1,2. Two views of a specimen which has lost the beak. Am. Mus. Nat. Hist., New York City. VOLUTODERMA Abbotti Gabb (p. 173). 4,5. Views of the opposite sides of the type specimen from the Acad. Nat. Sci., , 7. Two views of a specimen from the Am. Mus. Nat. Hist., New York , 9. Similar views of a specimen from the Acad. Nat. Sci., Phila. LUNATIA Halli Gabb (p. 175). 10,11. Views of the opposite sides of a specimen from Timber Creek, New Jersey, in the collec-tion of the Am. Miis. Nat. Hist., New York City. Natica abyssina Morton (p. 175). 12,13. Front and vertical views of a specimen from Timber Creek, New Jersey, in the collec-tion of the Am. Mus. Nat. Hist., New York U. S. GEOLOGICAL SURVEY MOMOGRA
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