134 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [June 17, 



JURASSIC. 

 Amorphozoa. 



1. Scyphia Cockburnii, sp. nov. PI. VIII. fig. 1, a, b. 



A convoluted sponge, having ten or eleven prominent plications 

 or costse, with a central nearly circular canal ^ths of an inch in 

 diameter. 



The structure is somewhat obscure, but, where exposed, exhibits 

 an irregular porous texture ; its base appears to have been adherent. 



Dimensions : length 1^ inch, diameter \\ inch. 



Locality. From red Jurassic limestone near Balaclava. 



Dedicated to Capt. C. F. Cockburn. 



ZOOPHYTA. 



Order Zoantharia=Aporosa. 

 Fam. Fungid^e. 



2. Comoseris irradians, M.-Edw. & J. Haime, Brit. Foss. Cor. 



Pal. Soc. p. 101, t. 19. f. 1, a-d. 



This and the several other fossil corals from the same locality, here- 

 after mentioned, can scarcely be distinguished lithologically or spe- 

 cifically from those obtained from the Coralline Oolite of Steeple 

 Ashton, Wiltshire. 



Loc. Soudaxioxia. Presented to the Museum of Practical Geo- 

 logy by the Imperial School of Mines at St. Petersburg. 



Fam. AsTRiEiD^E. 

 2 a. Thecosmilia annularis?, Flem. sp. ; M.-Edw. ibid. p. 84. 

 t. 13, 14. f. 1. 



A mass of small Polypidoms, which may be referred to this spe- 

 cies, in compact argillaceous limestone from Simferopol. 

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



3. Isastr^a Greenoughii, M.-Edw. Pal. Soc. p. 96. t. 17. f. 2. 

 Loc. Soudaxioxia. 



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



4. ISASTR^EA (AsTR^EA?) POLYGON ALIS, Mich. 



Fragment of the worn surface of this coral exhibiting a tessellated 

 appearance in red crystalline limestone, from the Bathing-place one 

 mile west of Balaclava. 



5. IsastrjEA explanata ?, Goldf. sp. ; M.-Edw. Pal. Soc. p. 94. 



t. 18. f. 1. 

 A weatherworn mass of what appears to be this species in white 

 crystalline limestone, from between the Monastery of St. George 

 and Balaclava. 



6. Thamnastr^ea arachnoides, Park. sp. ; M.-Edw. Pal. Soc. 



t. 18. f. \k. 

 An adult specimen of a very flat and thin form, having the stars in 



