Mr. S. V. Wood^s Catalogue of Shells from the Crag, 459 



Class PTEROPODA. 

 Ord. Thecosomata. 

 Cor. Crag. Red Crag. Mam. Crag. Recent. 



1. Cleodora infundibulum, n. s. 



Sutton. I I j 



Spec. Char. Elongate, trumpet- shaped, smooth, bicarinate, open 

 at both ends. 



This shell is now opake, and has an opening at the smaller end, 

 which may be perhaps accidental. Only four specimens. Length 

 quarter of an inch ; greatest diameter one-tenth. PL V. f. 13. 



1. Ditrupa subulata, Berkeley (Zool. Journal, vol. v. p. 427. pi. 19. 



f. 2. Dentalium subulatum, Deshayes, Monograph de Dent. pi. 

 2. f. 29). 



Sutton. I Sutton. | | 



The crag specimens rarely exceed half an inch in length. 



2. — polita, n. s. 



Sutton. I I I 



Shell slightly arcuated, thin, smooth, subcylindrical ; anterior 

 opening plain, posterior cleft, bilateral, with unequal terminations. 

 PI. V. f.l4. 



The body of the crag shell is not inflated or enlarged like that of 

 D. gadus, but has the posterior opening laterally cleft, somewhat re- 

 sembling that of D. coarctata, Dentalium coarctatum, Deshayes, 

 ' Monog. de Dent,' pi. 4. f. IS. (which is however distinct from ga~ 

 dus), but the dorsal part of the posterior end of this fossil is produced 

 beyond the edge beneath and rounded, the ventral edge is shorter 

 and truncated, an enamel -like polish covers the exterior, and was 

 probably when inhabited subhyaline, but is now opake. Length half 

 an inch nearly. 



1. Caecum trachea? Flem. (Edinb. Encyclop. vol. vii. p. 67. Denta- 



lium trachea, Mont. Test. Brit. p. 497. t. 14. f. 10. Odonti- 

 dium rugulosum? Phil. En. Moll. Sicilice, p. 102. t^6. f. 20). 



Sutton. I I I Britain. 



The recent British shell is regularly annulated and smooth, the 

 annuli in my single crag specimen are more irregular and rugose. 



2. — mammillum, n. s. 



Sutton. I I I 



3. — glabrum } (Dentalium glabrum, Mont. Test. Brit. p. 479). 



Sutton. I I I Britain. 



Class GASTEROPODA. 



Ord. Gymnobranchiata. 



Cor. Crag. Red Crag. Mam. Crag. Recent. 



1 . Chiton fascicularis. Sow., Jun. (Conch. Illust. Brit. Chitones, f. 87 a). 



Sutton. I I I Britain. 



2. — strigillatus, n. s. 



Sutton. I I I 



2 H 2 



