PLATE VIII. 
Page. 
Fig. 1. Pri::lisomu.s tjraciUs, gen. ct sp. nov. ; caiulal region, lateral aspect ... ... .33 
Fig. 2. CJciihrolepis granulatvs, Egerton ; lower half of trunk, showing pelvic, anal, 
and caudal fins, lateral a.spoct ... ... ... ... ... ... ... 39 
Fig. 3. Ditto ; posterior ahdominal and caudal regions, lateral a.spect. 
Fig. 1. Chithrolepis \J altus, a\). \\Q\.^ ■, lateral aspect ... ... ... ... ... 42 
]'ig. In. Two anterior dorsal ridge-scales, tM-ico nat. size. 
Fig. 5. Belonorhynchus grncilis, sp. nov.; ventral and lateral aspect. «., anal fm ; 
d. s., dorsal scutes ; h., hreiual arches of axial skeleton ; «., neural arches of 
ditto; ]>s., pre-.‘5yinphysial hone (1); r., ribs; v.s., ventral scutes ... ... 27 
Fig. G. Belonorhynchus yijus, sp. nov. ; imperfect caudal fin in matrix, lateral aspect, 
showing articulations of fin-rays ... ... ... ... ... ... 23 
Fig. 7. Belonorhynchus aculus, Agass. sp. ; dorsad scutes, latera.1 aspect, twice nat. size. — 
Lower Lias; Lyme Eegis, Dorsetshire, England. (Brit. Mus., P.3790). 
