118 CATALOGUE OF CEPHALOPODA. 



h. Broken, or young ? Wings very slightly expanded, very 

 tliin, and cavity very small, shallow. Paris. Presented 

 by J. E. Gray, Esq. 



** Lateral Expansion none. 

 2. Belopteea Levesquei. 



Shell oblong, elongate, arched, narrow, cylindrical ; three-keeled 

 in front ; beaked, blunt, and striated behind. 



Beloptera Levesquei D' Orb. et Feruss. Ceph. Acet. t. 20. f. 10. 12.; 

 JD'Orb. Moll Viv. et Fos. i. 307. t. 11. f. 5. 7. 



Fos. Paris Basin. 



• 3. Beloptera anomala. 



Shell oblong, elongate, depressed, arched, concave, with two di- 

 verged ridges above, behind blunt. 



Beloptera anomala Sow. Min. Condi, vi. 184. t. 591. f. 2. 1828; 

 D'Orb. Moll. Viv. et Fos. i. 309. t. 14. f. 8. 10. 



Fos. London Clay. 



FAM.VnL BELEMNITIDiE. 



Animal elongated ? only known fossil. 



Shell internal, (horny or) calcareous ; the apex conical, chambered. 

 Chambers concave, simple, pierced with a marginal siphon on 

 the ventral side ; sometimes covered externally with concentric 

 layers, forming a more or less elongate, subcylindrical, conical 

 style. 



Belemnitidas Owen, Trans. Zool. Soc. ii. 1836 ; D'Orb. Moll. Viv. 



e^i^06'.i. 443. 1845. 

 Onychoteuthidffi (pars) Graij., P. Z. Soc. 1847, 206. 

 Cephalopodes polythalmes (pars) Lamck. Hist. ed. 2. xi. 268. 

 Belemnomorpha JBronn, Gesch. der Nat. iii. 536. 



Synopsis of the Genera. 



A. Shell conical^ naked., not covered with any externally deposited 



Coat. 



1. CoNOTEUTHis. Shell with strong longitudinal keel on the 

 middle of the back. 



