1886.] PE0CEEDING8 OF UNllED STATES NATIONAL MUSEUM. 220 



spaces, and perhaps five times as high as broad. About uine gill-rakers 

 developed. 



Scales comparatively large, those on the back little reduced in size, 

 about ten before dorsal fin. Seven scales in a vertical row from first 

 ray of soft dorsal to lateral line. 



Dorsal fins rather low and strong (the first injured), with its anterior 

 margin not granulated; the third 2^ in head. Soft dorsal moderate, 

 its longest ray 3^ in head. Caudal very slightly concave, its longest 

 rays If in head. 



Pectoral fins rather short, reaching third ray of anal, 2A in body, 

 their length little more than length of head. Detached rays tapering, 

 a little more than half head. Ventrals about reaching vent, l| in head. 



Color, in alcohol, nearly plain brownish olive, with dark shades at 

 the bases of many of the scales, giving a mottled appearance; head 

 everywhere conspicuously reticulate with blacljish, in fine pattern. 

 Pectoral fin dusky, with a net- work of fine black cross-streaks. Dorsals 

 similarly marked, the spinous dorsal with a diffuse black blotch between 

 the fourth and sixth spines. Caudal plain, slightly dusky. Anal and 

 ventrals pale. Pectoral filaments nearly so. 



The specimen here described in splendid condition, is larger in size 

 than any other individual of any species of Prionotus which I have ever 

 seen. 



7. Gnathypops mystacinus Jordan. 



A fine specimen, considerably larger than the original type. Maxil- 

 lary a little longer, 4^ in body. 



8. Malthe vespertilio L. 



A specimen with the snout very long, 4f in length to base of caudal. 



9. Canthigaster rostratus Bloch. 



( Tetrodon ornatus Poey) 



A small specimen, about 2 inches long, agreeing fairly with Giin- 

 ther's description. Upper and lower edge of caudal abruptly jet-black, 

 this color extending as a dark stripe along median line of caudal pe- 

 duncle above and below. No cross-bands on tail (these appearing with 

 age?). Belly with conspicuous two-rooted prickles; some prickles and 

 granulations on the back. 



The name Psilonotus, formerly adopted for this genus by Dr. Gill and 

 the writer, is preoccupied. 



To the list of fishes from the stomachs of Lutjanus aija on the "Snap- 

 per Banks " of Pensacola, given in these Proceedings for 1884, p. 39, 

 the following may be added : 



Siphostoina uiackayi Swain & Meek. Pomacentrus cauclalis Poey. 



Exoccetus fnrca,tas Mitchill. Prionotus ophryaa Jordan & Swain. 



Authias vivanus Jordan & Swain. Prionotus stearnsi Jordan & Swain. 



CliiBtodon aya Jordan. Poriclithys porossinius Cuv. & Val. 



Cryptotouuis nstus Cuv. & Val. (not from Canthigaster rostral iis Ulocli. 



stomachs). Malthe vespertilio L. 



Indiana University, January 27, 1886. 



