731 
Macropephenchelys brachialIs new species 
Depth 1 4/5 'to 2 in head* 18 2/5 to 25 4/5 'to caudal base; head 
11 2/5 to 12 2/3, 3 1/3 to 3 2/5 to vent, width 2 1/2 to 2 3/4 in its 
length; combined head and trunk 2 2/7 to 24/5 in tail to caudal base. 
Snout 5 in head; eye 1 2/3 to 1 3/4 in snout, greater than inter¬ 
orbital; mouth cleft reaches 1/3 to 2/5 in eye, length 4 to 4 3/5 in 
head; interorbital 9 1/2 to 10, level to slightly depressed. Gill 
opening 7 to 7 3/4 in head. 
Lateral line axial, prominent, complete. 
Dorsal origin much nearer gill opening than vent, behind depress¬ 
ed pectoral, received in groove, fin height 3 1/4 to 4 in head; anal 
received in groove, fin height 3 1/4 in head; caudal 3 to 4, pointed; 
1 1/2 to 1 3/5. 
Light brown, belly and under surface of head scarcely paler. Iris 
grayish. Inside gill opening dusky. Peritoneum blackish. 
