CTEXOTHEISSin^. 
125 
1883. Berxjx miwocephalus, A. S. Woodward, Proc. Geol. Assoc, vol. x. 
p. 327. 
1899. Ctenothrissa microcephala, A. S. Woodward, Ann. Mag-. Nat. 
Hist. [7] vol. iii. p. 491. 
Tifpe. Imperfect fish ; British Wuseiim. 
All elongated species, attaining a length of about O’15. Length 
of head with opercular apparatus equal to the maximum depth of 
the trunk, which is contained about twice in the length from the 
pectoral arch to the base of the caudal fin. Head and fins as in 
C. radians^ except that the pelvic fins appear to be less elongated. 
Scales very large, the lateral line extending along the fourth series 
above that which forms the ventral border of the flank ; serrations 
of scales coarser than in C. 7’adians. 
Form. Log. Turonian : S.E. England. 
4034, 4036. The two type specimens described and figured by 
Agassiz, Joe. cit. ; Lower Chalk, Lewes, Sussex. In the 
first specimen, the short, toothed premaxillae are distinct 
in front of the maxillae; in the second specimen, part of 
the maxilla bears similar blunt teeth. Mantell Coll. 
25887. Small specimen erroneously referred to “ Beryx ” radians 
by Dixon, loc. cit. ; Lower Chalk, Sussex. Dixon Coll. 
P. 6466-68. Th ree large specimens, variously imperfect; Lower 
Chalk, S.E. England. BecMes Cold. 
P. 392. Imperfect fish showing general proportions ; Lower Chalk, 
S.E. England. Presented Jyy-the Earl of Ducie^ 1881. 
49881. Eine but imperfect specimen displaying the toothed maxilla, 
a supramaxilla, a preoperculum, parts of the fins, and the 
scales of the displaced squamation ; Lower Chalk, Beigate, 
Surrey. There is an ovoid scale between the bases of 
the pelvic fins. Capron Coll. 
49874. More imperfect smaller fish, showing frontal region of 
cranial roof and maxillae ; Lewes. Capron Coll. 
49875. Portion of small head and abdominal region; Clayton, 
Sussex. Capron Coll. 
P. 5419. Small trunk, showing pectoral and pelvic fins, associated 
with another fish ; Lewes. 
Presented hy P. E. Coombe., Esq.., 1888. 
49876. Imperfect small specimen, wanting tail; Lower Chalk, 
Glynde, near Lewes. Capron Coll. 
