LAMNIDjE. 
425 
1860. C'ora.v elongatus, II. Coquand, Descript. G6ol. etc. Depart. 
Charente, vol. ii. p. 97. 
I860. Corax boreaui, II. Coquand, op. cit. vol. ii. p. 134. 
1872. Corax falcatus, II. E. Sauvage, Bibliotli. Ecole Ilautes Etudes, 
vol. V. art. 0, p. 40, pi. ii. figs. 84, 8o. 
1872. Corax kaupii and Corax sp., II. E. Sauvage, ibid. pp. 41, 42, 
pi. ii. figs. 80-83. 
1873. Galeocerdo falcatus, J. Leidy, Ext. Vert. Fauna W. Territ. (Rep. 
U..S. Geol. Surv. vol. i. pt. i.) p. ilOl, pi. xviii. figs. 29-42. 
1874. Corax heterodon, St. Znrecznego, Sprawozd. Komisyi Fizyjograf. 
Galicyi, vol. viii. p. (127), pi. L fig. 2. 
1875. Corax heterodon, II. B. Geinitz, Palaeontogr. vol. xx. pt. ii. p. 210, 
pi. xl. figs. 2-15. 
1878. Cora.v heterodon, A. Fritsch, Kept. u. Fische bohm. Kreidefomi. 
p. 11, woodc., figs. 2-3, 24. 
1878. Cora.r heterodon, St. Zarecznego, loc. cit. vol. xii. p. (202). 
1880. Corax falcalus, II. E. Sauvage, Bull. Soc. Gdol. France, [3] 
vol. viii. p. 456. 
1888. Corax falcatue, A. S. AVoodward, Proc. Geol. Assoc, vol. x. 
p. 293 (in part). 
1888. Sphyma cf. plana, S. Nikitin, M6m. Com. Gdol. vol. v. no. 2, 
p. 40, pi. V. fig. 8. 
Type. Detached teeth ; British iluseum and Munich Aluseuin. 
A species rarel)’ attaining to so laige a size as C. priitodonius ; 
teeth scarcely differing from those of the latter species, except in 
the more prevalent elevation of the dental crown and the less arched 
character of the anterior coronal margin. Coronal serrations gene- 
rally distinct, but sometimes absent in the small teeth. 
A large series of teeth of this species is figured by Reuss under 
the name of C. heterodon. 
Form. Loc. Cenomanian and Turonian : S. England, N . France, 
bwitzerland, Saxony, Bohemia, Galicia, and Russia. Senonian : 
S.E. England, and N.E. France. Cretaceous : Kansas, Texas, New 
Jersey, and Mississippi, U.S.A. 
4454, 4457, 4465. Three of the type specimens, figured by Agassiz, 
tom. cit. pi. xxvi. a. figs. 1, 3, 6; Chalk, Sussex. 
Mantell Coll. 
4455,4456, 4458-4462, 4464, 4465 a, 4468,4469, 4471. Twenty- 
thrte teeth, the second figured by Mantell, op. cit. pi. xxxii. 
fig. 12 ; Sussex. Mantell Coll 
25824. Tooth figured by Dixon, op. cit . ; Sussex. Dixon ColL 
25796, 25799. 25809, 25815, 25946. Six teeth; Stssex, 
Dixon Coll. 
