Jordan and Evermann. — Fishes of North America. 2765 



178. NETUMA STBICTICASSIS (Cuvier & Valenciennes), text, p. 126. 



Subgenus NETUMA. 



Occipital process not constricted. 



179. NETDMA DUBIA (Bleeker), text, p. 126. 



180. NETUMA KESSLERI (Steind.achner). 



Head 3^ (4 in total with caudal) ; depth 6 (7 in total) ; width of head 4. 

 D. I, 7 ; A. IV, 13. Length (29252, U. S. Nat. Mus.) 14 inches. Body rather 

 longandlow; the head long, broad and much depressed, much In-oaderthan 

 deep. I]ye very small, about 10 in head, placed well above the mouth. 

 Interorbital space 2 in head ; snout 3^ ; breadth of mouth 2. Mouth large, 

 with thickish lips, the upper jaw considerably projecting. Teeth all vil- 

 liform, rather jiointed. Vomerine patches rather large, roundish, usually 

 fully confluent into a trapezoidal band, without division on the median 

 line, and separated by a very narrow groove from the palatine bands. 

 Palatine bands very large, broadly triangular, with a backward prolonga- 

 tion from the inner margin. (Teeth on vomer and palatines all forming 

 one continuous baud in old specimens, according to Steindachner.) Bands 

 of teeth in jaws broad, the jaws strong. Barbels rather short and very 

 slender, the maxillary barbels reaching little past base of pectoral; outer 

 mental barbels about reaching gill opening; inner about as long as snout. 

 Antedorsal shield short, crescent-shaped, rough, but without median keel. 

 Occipital process long, narrowly triangular, its edges straight, its length 

 \ to \ more than its width at base, its median line sharply keeled. Fon- 

 tanel broad and shallow, its posterior end obtuse or almost truncate, its 

 tip not prolonged in a groove, its edge bounded by a bony ridge, which is 

 not granulated in front of middle of eye; end of fontanel about midway 

 between tip of snout and front of dorsal, its greatest width about equal 

 to length of eye. Shields of head all very coarsely granular, the rough- 

 nesses extending forward about to the eye. Gill membranes forming a 

 broad free fold across isthmus. Dorsal spine moderate, a little more than 

 \ head, about equal to pectoral spine; humeral process triangular, 

 granular, not quite | length of pectoral sjiine; axillary pore obsolete; 

 adipose fin long and low, its posterior margin little free; caudal short and 

 broad, the upper lobe the longer. If in head; anal and ventrals rather 

 small, the vent close behind the latter. Color dark brown, with bronze 

 reflections; belly white; fins all dusky in 1 specimen, in the other mostly 

 pale ; maxillary barbels dusky, others pale. Two large specimens obtained 

 at Panama by Gilbert. (Jordan «&, Gill)ert, Bull. U. S. Fish Comm., ii, 

 1882, 40.) 



181. NETUMA INSCULPTA (Jordan & Gilbert). 



Head 4 (4| in total) ; depth 5| (6f ) ; width of head 4?. D. I, 6; A. IV, 

 14. Length (29415) 13| inches. Body moderately elongate, little com- 

 pressed, the caudal peduncle slender and short. Head shortish, low and 



