FRESH -WATER FISHES OF WESTERN CURA. 
231 
D. xv, 11; A. iv, 9; depth greatest below lirst dorsal spine, 2.5 to 2.7; depth of caudal peduncle 
2.5 to 2.25 in head; scales 27 to 29; pores 17 to 21 + 10 to 13; body heavy forward, tapering from the 
shoulders to the caudal peduncle; jaws heavy, lips thick; snout 2.75 to 2.5 in head; eye 4.5 to 5 in 
head (3.5 in young), 1.5 in interorbital; no pore in upper angle of gill-opening (except on one side of 
one individual.); highest dorsal and anal rays reaching base of caudal; highest dorsal rav 4.5 to 5.3 in 
Fig. 12. Heron tetracanthus tetracanthus Cuvier & Valenciennes. (Type B.) 
— " i ( •+ tv. ; / 
, v . V. 
1 vVi i 
n At I 
l * i i > f mVa 
m.u., A i 
\ )j »> I ('■) t'.i t S ): f f /»; 4! » l j 
iUJUX i )\ mm 
IK K i X } : > .. * , X:XX 
Fig. 13. I-Icron tetracanthus tetracanthus Cuvier & Valenciennes. (Type C.) 
the length; last dorsal ray 3 in the longest; lateral and caudal spots conspicuous in young, which have 
a series of light crossbars; two light bars usually confluent over the lateral spot; fins dusky, the verti- 
cal ones lighter-edged and with some spots on their bases; no spots on head or body in the youngest; 
in larger ones spots appear about the base of the pectoral, opercle, angle of preopercle and mandible- 
There is great variation in the distinctness of the lateral bands. 
