CEPHALOPODA— BELEMNOIDEA, 



231 



407. B. (Belemnopsis) tehamaensis Stanton. (Fig. 1513, d, ^.) 



Comanchic. 



More slender and longer than preceding ; apex more acute ; sec- 

 tion more nearly circular. 



Knoxville of California, abundant. 



Fig. 15 13. a-c, Belemnites impressus : «, ventral view of a somewhat slender indi- 

 vidual; i^, fragment with phragmocone in place ; c, cross section just below phragmocone; 

 df e, B. tehamaensis, cross section and side view of type. All X Yz- (After Stanton. ) 



408. B. skidegatensis Whiteaves. (Fig. 15 14.) Comanchic. 



More slender than B. densus, with more nearly central axial line, 

 faint apical groove, alveolar cavity about one half entire length 

 of guard, apex of guard and phragmocone excentric. 



Queen Charlotte formation of Queen Charlotte Islands, British 

 Columbia. 



CLXXVI. Belemnitella d'Orbigny. 



Guard cylindrical, with short, deep, ventral furrow falling short 

 of the alveolar margin; phragmocone inserted in the guard which 

 ends in a mucronate point. Cretacic. 



