SCOPELID.®. 
265 
and a fragment of the more delicate posterior part of the 
element also remains. The latter bears another large 
tooth, which is comparatively short and broad, and this 
is immediately followed behind by a very small tooth of 
the same shape. The base of all the teeth is feebl) 
marked with striations. Bowerbanlc Coll. 
P- 1798. Hinder extremity of left premaxilla, apparently of this 
species, with a well-spaced series of small teeth regularlj 
diminishing in size backwards, and resembling in shape 
the hinder tooth of the last specimen ; probably from 
Grey Chalk, Dover. . E 9 eHon Co,L 
49068. Hinder end of left dentary, apparently of this species ; Grey 
Chalk, Dover. The hinder of the two enlarged teeth 
is preserved ; behind this are three irregularly space( 
teeth not quite half so much elevated ; and after anot er 
short space there follows a gradually diminishing series of 
five teeth. Mrs - SmitKs ColL 
The following specimens and many other fragments seem to 
represent undetermined species of Ajoateodus : — 
28390. Dentary bones of mandible, with widely-spaced, slendei, 
lanceolate teeth ; Chalk, Lewes. Mantell CoJ. 
49823. The toothed border of a large dentary, with the two 
enlarged teeth and a diminishing series of nine hroat 
teeth behind ; Grey Chalk, Brighton. Capion o 
Genus RHINELLUS, Agassiz. 
[Poiss. Boss. vol. ii. pt. ii. 1844, p. 260.] 
s yn. Ichthyotringa, E. D. Cope, Bull. U.S. Geol. Surv. Temt. vol. iv. 
1878, p. 09. 
Head excessively elongated by the production of the stout pro 
maxilla; and the mandible into a long, slender rostrum ; teeth large 
in the middle of each jaw. Branch iostegal rays about 9 in number. 
' ertebr® about 45 in number, not less than 25 being abdominal : 
Die centra slender, much constricted and strengthened by delicate 
iongitudinal ridges of bone. Pelvic fins arising almost or exactly 
opposite the dorsal fin ; dorsal fin with 12, and anal fin with about 
14 rays. Trunk completely covered with a regular squamation, the 
s «ales not serrated at the hinder border, and only slightly thickened 
or enlarged in the course of the lateral line. 
