156 
ACT1N0PTERYGII. 
distorted, and it is difficult to determine its original shape and pro¬ 
portions. The accompanying woodcut (fig. 28) is probably almost 
correct. 
Pig. 28. . 
Cleithrolepis grunulatus, restored. 
A unique specimen with remarkably deepened trunk, found in 
association with this species, is provisionally named Cleithrolepis 
altus (A. S. Woodward, loc. cit. p. 42, pi. viii. fig. 4). 
Form. Loc. Upper Trias (Lower Hawkesbury-Wianamatta 
Series) : New South Wales. 
P. 6280. Four imperfect specimens ; Gosford. By exchange , 1890. 
P. 6281. Slab exhibiting imperfect specimens in association with 
Pristisomus , &c.; Gosford. By exchange, 1890. 
Cleithrolepis extomi, A. S. Woodward. 
1888. Cleithrolepis extoni, A. S. Woodward, Quart. Journ. Geol. Soc. 
vol. xiiv. p. 141, pi. vi. figs. 6, 7. 
Type. Imperfect fish ; British Museum. 
A species apparently resembling the t} T pe in form and proportions, 
but differing in the relative size of the opercular bones. Tubercu- 
lations on head and opercular bones fine and sparse ; operculum two- 
thirds as deep as the suboperculum, which is nearly as broad as deep. 
Form. Loc. Upper Karoo Formation (Stormberg Beds): Orange 
Free State. 
P. 5455. The type specimen, described and figured loc. cit. p. 141, 
pi. vi. fig. 6 ; Bouxville. 
Presented by Hugh Exton , Esq., M.D ., 1888. 
