176 



MANUAL OF THE MOLLUSCA. 



Animal proyided with arms and tentacles of nearly equal 



length, furnished with a double 

 alternating series of horny hooks, 

 from 20 to 40 pairs on each arm ; 

 mantle free all round; Jins large, 

 medio-dorsal (much larger than in 

 Fig. 40). 



Fossil in the Oxford clay of 

 Chippenham. Similar horny claws 

 have been found in the lias of 

 K gliflK Watchett, and a guard equally thin 



(^ ^ -^J ^ is figured in Buckland's Bridge- 



water Treatise, t. 44, Eig. 14. 



In the fossil calamary of Chip- 

 penham the shell is preserved along 

 with the muscular mantle, fins, 

 ink-bag, funnel, eyes, and tentacles 

 with their horny hooks. All the 

 specimens were discovered, and de- 

 veloped with unexampled skill, by 

 William Buy, of Sutton, near Chip- 

 penham. 



COI^OTEUTHIS, D'Orb. 



Type, C. Dupinianus, D'Orb. 

 _. _ , PL II., Pig. 9. Neocomian.Yxance: 



T^. 40. Belemnoteuthzs* ^^^^^ England. 



Phragmocone slightly curved. Pen elongated, very slender. 



This shell, which is like the pen of an ommastrephe, with a 

 chambered cone, connects the ordinary calamaries with the 

 belemnites. 



Pamilt Y. — Sepiad^. 



Shell (cuttle-bone, or sepiostaire) calcareous ; consisting of a 

 broad laminated plate, terminating behind in a hollow, imper- 



* Eig. 40. Belemnoteuthis antiquus, f, ventral side, from a specimen in the cabinet 

 of William Cunnington, Esq., of Devizes. The last chamber of the phragmocone is 

 preserved in this specimen, a, represents the dorsal side of an uncompressed phrag- 

 mocone from the KeUoway rock, in the cabinet of J. G-. Lowe, Esq. ; c, is an ideal 

 section of the same. Since this woodcut was executed a more complete specimen has 

 been obtained for the British Museum ; the tentacles are not longer than the ordinary 

 arms, owing, perhaps, to theu- partial retraction ; this specimen is figured in Dr. 

 Mantell's " Petrifactions and their Teachings." d, is a single hook, natural size. The 

 epecimens belonging to Mr. Cunnington and the late Mr. C. Pearce show the larg© 

 acetabular bases of the hooks. 



