356 
A.CTINOPTERYGII. 
1814. Two more imperfect; specimens, displaying ^ 
characters noted in the previous specimens ; .. 
Dome. Egerton Coll- 
P. 387 Two imperfect specimens; St. Saturnin, near St. Auund 
Tallende. The cranium is partly exposed from a )0 J 
showing the much-constricted interorbital region an ^ 
gently rounded roof of the brain-case. Enniskillen 
P- 5946. Large imperfect specimen ; St. Saturnin. Q 
Purchased, lb» 9 - 
Ihe following specimen may perhaps represent a member of t 
family Ammodytid®, but it is too imperfect for satis ac o 
determination : — 
46540. Imperfect caudal region 0'065 in length, associated wi ^ 
specimen of Khinellus ; Upper Cretaceous, Sahel 
Mount Lehnnon. The vertebral centra are too i m P c 
for recognition, but there are about 24 in the ca ^ 
region ; the neural and haemal arches are short. ^ 
dorsal fin is extended, probably with about 20 rays , ^ 
anal fin, with 14 rays, is opposed to the hinder J 
the latter. The caudal fin is incomplete distal y- ^ 
scales are indistinct. Lewis 
Family SCOMBRESOCIDiE. 
Maxilla entering the border of the upper jaw ; dentition fe ^ 
opercular apparatus complete, with few branchiostegal ra A'’ ^ 
the gill-opening wide. Lower pharyngeal bones united. ^ 
numerous, from 45 to 85 in the total length ; centra of 
vertebrae with transverse processes for the support of slen< i r ^ 
l civic fins without spine but with only about 6 divided 1 a 3 ^ g (1 
remote dorsal fin, without an anterior spinous portion: aria ^ 
opposed to the posterior dorsal. Scales in regular series, 
usually a keel along each side of the lower region of the bo > • ^ 
Nearly all the existing Scombresocidse are marine, on J frenuS 
small forms living in freshwater in the tropics. No extinc o 
is known. 
Genus BELONE, Cuvier. 
[Eegne Animal, vol. ii. 1817, p- 185.] 
Head and trunk much elongated and slender. Jaws pr ^ 
into an attenuated beak, the lower scarcely if at all excee 1 a 
