BELEMNITID2E I BELEMNITES. 
123 
4. Actinocamax SUBVENTRICOSA. 
Shell conical, concentrically rugose. Style elongate, subcylin- 
drical, smooth, rather trigonal, compressed in front, depressed 
and mucronate at the tip behind ; lateral grooves flattened, 
simple, evanescent behind. 
Belemnites subventricosus Wahlenb. Act. Upsal . viii. 80. 1821 ; 
Voltz , Belem. 64. t. 8. f. 1. 
B. mamillatus Nelson , Act. Holm. 1825, 340., Petref. Suec. 10. t. 2. 
f. 2.; Hissing , Lethcea Suec. 31. t. 10. f. 7. ; Roemer , Kreid. 84. 
B. Scaniae Blainv. Belemn. 61. 1827, Diet. Sci. Nat . f. 6. ; Desk. 
H. M. ii. 124. 
Belemnitella subventricosa D' Orb. Paleont. univ . t. 31. f. 7. 12., 
Moll. Viv. et Fos. i. 454. t. 33. f. 7. 12. 
Fos. Chalk. Sweden. 
4. BELEMNITES. 
Shell conical ? . The externally deposited style with 
an entire margin to the edge of the conical cavity (which 
covered the shelly cone). 
Belemnites Lister , 1678; D'Orb. An. Sci. Nat. xvii. 1842, Paleont. 
Ter. Jur. 1842, Moll. Viv. et Fos . i. 459. 
Belemnita Fleming , Brit. Anim. 1828. 
Belemnites (pars) Ehrhart , Bel . Suec. 1727 ; Lamck. Hist, (not 
Syst. 1801). 
Nautilus Belemnita Gmelin. 
Histolithis Montf. Conch . Syst. i. 387. t. 97. 
Acamas Montf. Conch. Syst. i. 1808. 
Achelo'is Montf. Conch. Syst. i. 1808. 
Callirhoe Montf. Conch. Syst. i. 1808. 
Celocis Montf. Conch. Syst. i. 1808. 
Chrysaor Montf. Conch. Syst. i. 1808. 
Hibolithes Montf. Conch. Syst. i. 1808. 
Paclites Montf. Conch. Syst. i. 1808. 
Poradragus Montf Conch. Syst. i. 1808. 
Thalamus Montf. Conch. Syst. i. 1808. 
? Platinites Rafn. 
Actinocamax (pars) Voltz , Ann. Sci. Nat. xiii. 354. 1840, not 
Muller ; Philips , Hartmann. 
? Pseudobelus Blainv. Belemn. 113. 
Notosiphites and Gasterosiphites Duval . 
Ocoeli, Notocceli, and Gastrocoeli D' Orb. Paleont. univ., Moll. Viv. 
et Fos. 
Teudopsis sp. Deslongchamps , Mem. des Soc. Norm. v. 72. 1838. 
G 2 
