19U.] 



NATURAL SCIENCES OF PHILADELPHIA. 



363 



Lethotremus armouri sp. nov. Fig. 2. 



Head 2|; depth about 1|; D. v, 11; A. 11; P. about 18; head 

 width about 2^ m head and trunk; snout (in profile) 3f in head; 

 eye (in profile) 2|; mouth width If; interorbital about 2; height 

 of first dorsal If; height of second dorsal about 2; height of anal 

 1|; least depth of caudal peduncle 2|; caudal 1|; upper longest 

 pectoral ray If; length of disk Ij. 



Fig. 2. — Lethotremus armouri Fowler. (Type.) 



Body robust, swollen or rounded anteriorly, though greatest 

 width not quite equal to greatest depth, or 2| in head and trunk 

 without caudal. Greatest width falls at base of uppermost pectoral 

 ray. Contour of body in lateral profile generally ovoid. Caudal 

 peduncle compressed, its length about f its least depth. 



