122 CEPHALOPODA. 



(1879), pi. xv, f. 79, p. 313. Lower Lias (zone of A. pla- 



norbis) ; Robin Hood's Bay. Leckenby Collection. 

 Ammonites biplex, Sowerby, W. Keeping, Foss. Upware and 



Brickhill (1883), pi. viii, f. 11, p. 155. Lower Greensand 



(derived) ; Upware. 



A. (Aegoceras) capricornus, Schlotheim, T. Wright, Lias Am- 

 monites (1880), pi. xxxiv, f. 18, p. 368. Middle Lias; Robin 



Hood's Bay. Leckenby Collection. 

 A. coelonotus, H. G. Seeley, A. M. N. H. ser. 3, xvi (1865), pi. x, 



f. 2, p. 237. Cambridge Greensand ; Cambridge. 

 A. coelonotus, Seeley, var. valbonnensis, Hebert and Munier- 



Chalmas, A. J. Jukes-Browne, Q. J. G. S. xxxm (1877), p. 491. 



A. coelonotus, var., H. G. Seeley, A. M. N. H. xvi (1865), pi. x, 



f. 3, p. 237. Cambridge Greensand ; Cambridge. 

 A. (Arietites) collenotti, d'Orbigny, T. Wright, Lias Ammonites 



(1881), pi. vi, f. 1, pi. xxii A, f. 69, pi. xxii B, f. 13, p. 304. 



The specimen figured pi. vi, f. 1 cannot be found. Lower Lias; 



Robin Hood's Bay, near Wkitby. Leckenby Collection. 



A. cornuelianus, d'Orbigny, W. Keeping, Foss. Upware and 



Brickhill (1883), pi. i, f. 9 a c, p. 89. Lower Greensand; 



Upware. 

 A. cratus, H. G. Seeley, A. M. N. H. ser. 3, xvi (1865), pi. xi, f. 2, 



p. 240. Cambridge Greensand; Cambridge. 

 A. (Aegoceras) curvicornis, Schloenbach, T. Wright, Lias 



Ammonites (1880), pi. xxxi, f. 3, 4, p. 377. Middle Lias; 



Charmouth. Leckenby Collection. 

 A. (Aegoceras) davoei, Sowerby, T. Wright, Lias Ammonites 



(1880), pi. xxxi, f. 1, 2, p. 346. Middle Lias; Golden Cap, near 



Chideock. Leckenby Collection. 



A. deshayesi. Leymerie, W. Keeping, Foss. Upware and Brick- 

 hill (1883), pi. iii, f. 1, p. 90. Lower Greensand ; Upware. 

 A. glossonotus, H. G. Seeley, A. M. N. H. ser. 3, xvi (1865), pi. x, 



f. 4, p. 235. Cambridge Greensand ; Ashwell. 

 A. gowerianus, Sowerby, J. Leckenby, Q. J. G. S. xv (1859), 



pi. i, f. 1 b, p. 9. Kellaways Rock; Red Cliff, near Scarborough. 



Leckenby Collection. 



