PLATE IV. 
Page. 
Ing. 1. Aetheolepis mirahilis, gen. ct sp. nov. ; nearly complete fish, lateral aspect ... 12 
rigs. 2,2i7. Ditto; two principal tlank-.scales o£ abdominal region, onter and inner (c) 
aspects, twice nat. size ... ... ... ... ... ... ... 15 
Pigs. 3, ?ja. Ditto ; dors.al or ventral scale of .abdominal region of same specimen, outer 
.and inner (a) aspects, twice nat. size ... ... ... ... ... 15 
Pig. i. Ditto ; liindcr abdominal tlanlc-scale of s.ame specimen, outer aspect, twice 
nat. size... ... ... ... ... ... ... ... ... ... 15 
Pigs. 5-7. Ditto ; scales of caud.al region of same specimen, twice nat. size 
IG 
Pigs. 8, 0. Lepiolepis gregariits, sp. nov. ; nearly complete fishes, lateral aspect, the first 
with imperfect caudal fin ... ... ... ... ... ... ... 24 
Fig. 10. Ditto; mrtline of head of specimen shown in Plate YT, Pig. 11, twice nat. 
size. The appearance of the dentary .and of the chcek-plates is deceptive 25 
* 
Pig. 11. Ditto; maxillary teeth, greatly enlarged ... ... ... ... ... 25 
I 
