LAMNIDJ3. 
425 
1860. Corax dong atm, H. Coquand, Descript. Geol. etc. Depart. 
Charente, toI. ii. p. 97. 
1860. Corax boreaui , H. Coquand, op. cit. vol. ii. p. 134. 
1872. Corax falcatus, H. E. Sauvage, Biblioth. Ecole Hautes Etudes, 
vol. v. art. 9, p. 40, pi. ii. figs. 84, 85. 
1872. Corax kaupii and Corax sp., H. E. Sauvage, ibid. pp. 41, 42, 
pi. ii. figs. 80-83. 
1873. Galeocerdo falcatus, J. Leidy, Ext. Yert. Fauna W. Territ. (Rep. 
(J.S. Geol. Suirv. vol. i. pt. i.) p. 301, pi. xviii. figs. 29-42. 
1874. Corax heterodon , St. Zarecznego, Sprawozd. Komisyi Fizyjograf. 
Galicyi, vol. viii. p. (127), pi. i. fig. 2. 
18/ 5. Corax heterodon , H. B. Geinitz, Palasontogr. vol. xx. pt. ii. p. 210, 
pi. xl. figs. 2-15. 
1878. Corax lieterodon , A. Fritsch, Rept. u. Fisclie bohm. Kreideform. 
p. 11, woodc., figs. 23,24. 
1878. Corax heterodon, St. Zarecznego, loc. cit. vol. xii. p. (202). 
1880. Corax falcatus , H. E. Sauvage, Bull. Soc. Geol. France, [3] 
vol. viii. p. 456. 
1888. Corax falcatus , A. S. Woodward, Proc. Geol. Assoc, vol. x. 
p. 293 (in part). 
1888. Sphyrna cl plana, S. Nikitin, Mem. Com. Geol. vol. v. no. 2, 
p. 40, pi. v. fig. 8. 
Type. Detached teeth ; British Museum and Munich Museum. 
A species rarely attaining to so large a size as C. pristodontus; 
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. Cenomaniai^ and Turonian : S. England, N. France, 
f ff'C./uyn'l \ Switzerland, Saxony, Bohemia, Galicia, and Russia. Senonian : 
w S.E. England, and N.E. France. Cretaceous : Kansas, Texas, New 
Jersey, and Mississippi, U.S.A. ^ 
vA ‘ x /Ka 
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, 4439, 4471. Twenty- 
three 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. 35809, 25815, 25946. Six teeth ; Sr ssex. 
Dixon Coll. 
