1857.] BAILY FOSSILS FROM THE CRIMEA. 143 



ECHINODERMATA. 



74. Conoclypus conoideus, Agassiz, Cat. p. 109. 



Clypeaster conoideus, Du Bois, Voy. au Caucase. 

 Loc. Simferopol. 



Mollusc a. 



75. Ostrea gigantea, Brander. (Ostrea latissima, Desh.) 

 Loc. Simferopol. 



76. Cerithium giganteum, Lamarck. 

 Loc. Simferopol. 



Presented by the Imperial School of Mines, St. Petersburg. 



MIDDLE OR NEWER TERTIARY.— (Falunian, D'Orbigny.) 



Amorphozoa. 



77. Scyphia Portlockii, sp. nov. PI. IX. f. 1, a, b. 



Sponge more or less elongated, forming a somewhat rounded and 

 irregular tube, smallest in diameter at the extremities, perforated 

 throughout its length by a single large canal opening at each extre- 

 mity and having sharp raised edges ; surface thickly covered with 

 irregular pores. 



Dimensions of one specimen : — length 1 inch, greatest diameter 

 \ an inch, diameter of tube -j^ths of an inch. A second specimen 

 measured but 3%ths of an inch in length, with a diameter of \ an 

 inch. 



Loc. Monastery of St. George. 



Dedicated to Col. Portlock, Pres. Geol. Soc. 



Foraminifera. 

 77 a- Polystomella crispa, Linnseus. 



Mr. Rupert Jones has detected two specimens of this very minute 

 Nautiloid form (still common in the Atlantic and Mediterranean) on 

 the weathered surface of a limestone, made up of fragments of 

 shells, principally bivalves, and collected by Lieut. -Col. Munro in 

 the neighbourhood of Sebastopol. 



Mollusc a. Asiphonida. 



78. Mytilus apertus, Desh. Mem. Geol. Soc. France, vol. iii. 

 p. 61, pi. 4. f. 6-11. Myoconcha aperta, D'Orb. 



Loc. Kertch. In iron-ore. Collected and presented by Dr. M'Pher- 

 son. 



79. Dreissena (Mytilus) rostriformis, Desh. Mem. Soc. Geol. 



France, vol. iii. p. 61. t. 4. f. 14-16. 

 This and the preceding species were found associated with the 

 numerous and peculiar forms of Cardium, hereafter mentioned, in 

 the deposits of iron-ore near Kertch. Collected by Dr. M'Pherson. 

 There is also a specimen in the British Museum. 



79 a. Dreissena in^equivalvis, Nyst. 



Mytilus incequivalvis, Desh. loc. cit. pi. 5. f. 1-3. 

 Collected by Dr. M'Pherson. From iron-ore, Kertch. 



