78 
CHIMJEKOIDEI. 
1844. Chimcera, G. A. Mantell, Medals of Creation, p. 621. 
1875. Chimcera agassizii, H. B. Geinitz, Palaeontogr. yoI. xx. pt. ii. 
p. 206, pi. xxxix. figs. 8-10. 
1878. Edaphodon agassizii, E. T. Newton, Chimaeroid Fislies Brit. 
Cret. Rocks (Mem. Geol. Surv., Monogr. iv.), p. 12, pi. iii. 
Type. Imperfect mandibular tooth ; British Museum. 
Mandibular tooth comparatively short and robust, and the beak 
only slightly produced; symphvsial facette occupying less than one 
third of the inner aspect; beak-tritor composed of a series of laminae, 
the other tritors consisting of a number of tubules : median t-ritor 
very broad, occupying the greater portion of the oral surface, and 
apparently exposed superiorly throughout its length. [Palatine and 
vomerine teeth unknown.] 
Form. § Loo. Cenomanian and Turonian: Sussex, Kent, and 
Surrey. Cenomanian: Saxony. 
28387. Type specimen, figured by Agassiz, tom. cit. pi. xl. a. figs. 3, 
4, and by Newton, op. cit. pi. iii. figs. 1, 2; Chalk Marl, 
Hamsej’, Sussex. Mantell Coil. 
49723. Left mandibular tooth; Lower Chalk, Southeram, near 
Lewes. Capron Coll. 
P. 5406. More imperfect example ; Lewes. 
Presented by P. E. Coornbe, Esq., 1888. 
28386. Pair of mandibular teeth, associated with dorsal fin-spine, 
noticed by Mantell (op. cit.), and figured by Newton, 
oqo. cit. pi. iii. fig. 3: Lower Chalk, Burharn, Kent. 
Mantell Coil. 
P. 1154. Imperfect small right mandibular tooth, the symphysis 
either broken or unusually narrow ; Lower Chalk, Kent. 
Egerton Coll. 
41681. Imperfect left mandibular tooth, equally small; Dorking, 
Surrey. Toulmin-JSmith Coll. 
4283. Imperfect small left palatine tooth, assigned to this species 
by Agassiz (tom. cit. pi. xl. a. fig. 5), but stated by Newton 
(op. cit. p. 13) to be too imperfect for determination; 
Lewes. Mantell Coll. 
Edaphodon crassus, Newton. 
1878. Edaphodon o'assus, E. T. Nekton, Chimteroid Fishes Brit. Cret. 
Rocks (Mem. Geol. Surv., Monogr. iv.), p. 21, pi. vii. 
Type. Associated dentition ; Museum of Practical Geology. 
A species of small size. Mandibular tooth short and robust, and 
