430 
ACTIXOPTERYGII. 
Fins large; pectoral tin-rays un¬ 
articulated, except distally; anal 
and pelvic fins extended; scales 
large,thick, slightly overlapping, 
obliquely sculptured; dorsal 
ridge-scales much enlarged. . . . 
Fins large, fulcra minute; dorsal 
and anal tins short-based; scales 
very small, obliquely sculptured. 
Fins large, fulcra minute ; pectoral 
fin-rays unarticulated, except 
distally; dorsal and anal fins 
somewhat extended ; scales 
small, thick, slightly overlap¬ 
ping, obliquely sculptured .... 
Fins large, with fulcra; pectoral fin- 
rays articulated; dorsal and 
anal fins short-based; scales of 
moderate size, thick, slightly 
overlapping, coarsely ridged and 
serrated . 
Fins large, with fulcra; pectoral fin- 
rays articulated; dorsal and 
anal fins short-based; scales 
large, thin, very deeply over¬ 
lapping, externally striated.... 
Fins large, fulcra minute or absent; 
dorsal and anal fins short-based; 
scales large, thin, very deeply 
overlapping, externally tuber- 
culated . 
II. F 'in-rays simple ; caudal fin obliquely 
truncated. 
Teeth minute; dorsal fin extended, 
not remote; scales sculptured, 
and dorsal ridge-scales much 
enlarged. 
Atherstonia (p. 514). 
Myriolepis (p. 515). 
Oxygnaihus (p. 516). 
Centrolepis (p. 520). 
Cryphiolepis (p. 522). 
Coccolepis (p. 523). 
Holurus (p. 526). 
Genus CABJOBIUS, Traquair. 
[Trans. Roy. Soc. Edinb. vol. xxx. 1881, p. 46.] 
Trunk fusiform. Mandibular suspensorium nearly vertical; 
snout rounded, slightly projecting over the mouth; gape small [and 
teeth unknown]. Fin-rays articulated and distally bifurcating ; 
fulcra minute. Dorsal and anal fins short-based, triangular- 
