128 
AClIJfOFTERTQir. 
and the anal, also remains of the pectoral and pelvic ar 
as shown loc. cit. 1894, pi. xliii. fig. 6 ; Btirham. - 
Presented by the Hon. Robert Marsham, 
36097. Scattered remains of small specimen, including vcrteb>-« 
and characteristic hinder scales of lateral line . ‘ 
Chalk, Dorking, Surrey. Purchased, 
Family CLUPEIDyE. 
Snpraoecipital hone separating the small parietals in the 
line . squamosal reduced, separated from parietals, and fuse 
pterotic; a basicranial canal; snout not produced; cheek-p a 
reduced. Premaxilla small and maxilla relatively largo and 1°"^; 
both these bones entering the upper border of the mouth; usU ^'_ 
two supramaxillaries ; teeth acuminate, hut usually feeble, ^ 
times absent. Opercular apparatus complete, hut few branch' 0 ' ^ 
rays and no gular plate. Vertebral centra well ossified, some * 
vcrj short transverse processes ; ribs nearly or completely emir : ^ 
the abdominal cavity ; haemal arches not much fused at the 
of the tail. Intermuscular bones numerous. Fin-fulcra •> ^ ^ 
Post-temporal bones in contact with postero-lateral ang cs ^ 
cranium ; post-clavicular plate overlapping the clavicle. P° r 
small, nearly median, without adiposo dorsal ; anal fin van" ^ ^ 
extent. Scales thin and deeply imbricating. In recent f° r g 
pseudobranchiae present ; a large air-bladder ; pyloric apP erl D 
numerous ; oviducts complete. 
Synopsis of Genera represented by Extinct Species. 
I- Ventral ridge-scales absent. 
A. Scales pectinated. 
Paired fins small, the pelvic pair ^9). 
opposed to the dorsal Pseudobenjx (P- 
P>. Seales smooth and cycloid. 
Maxilla rather short and arched, with . j; 3 l). 
small teeth ; paired fins large . . Htstiothrissa P 
Maxilla very long and slender ; teeth 
rudimentary or absent ; paired fins , qo\ 
small Enymvlis (!’• ' . 
Mouth small ; fins small. ....... Hulec psis (p- 
1 ' Ventral ridge-scales present. 
A few finlets behind the anal fin ; no , ]35). 
dorsal ridge-scales Scomlroclnpea tP- 
No fir lets ; dorsal ridge-scales between , 139). 
occiput and dorsal fin Piplomyetas {]>■ 
ho finlets; no dorsal ridge-scales. . . . Clupea fp- 
