Smith and Scale — Fishes from the Island of Mindanao. 75 



and ventrals, which are yellowish. Two fine specimens, length, 12.75 and 

 13.50 inches. 



This species resembles C. nievhofi Valenciennes, but differs in the number 

 and arrangement of tlie cephalic plates, in having but two fontanelles, and 

 in coloration. For comparison, outline figures of the dorsal surface of the 

 heads of these two species are here given. 



Type, 12.75 inches long, from Rio Grande, Mindanao, No. 55,620, U. S. 

 National Museum. Named for Dr. Theodore Gill. 



SYNGNATHIDAE. 



5. Corythroichthys pullus Smith &. Scale, sp. nov. 



Head, 8 in'length without caudal; depth, 2.50 in head; snout, 2.20 in 

 head, its width 4 in its length; eye, 2.50 in snout; dorsal, 29* anal, 1; 

 pectoral, 11 ; osseous rings, 15 4 41 ; base of dorsal not elfevated ; angle of 

 forehead not alirupt, being about 30°; no filaments on head; opercle 

 crossed by a single bony stay ; ventral surface of rings on belly and thorax 

 with a sharp median ridge ; dorsal ridge of trunk and tail not continuous ; 

 a low median ridge on top of snout, with small lateral ridge from orbit to 

 tip of snout; length of pectorals 2.50 in snout; caudal 3 in snout; anal 

 opening situated on the posterior body ring; the dorsal fin located on the 

 6 anterior rings of the tail ; longest dorsal ray about 2.50 in snout. Color 



Corythirncliiln/s pullus Smith & Seale, sp. nov. 



in spirits uniform dark lava brown, no black bands or spots anywhere on 

 body; some indistinct pearl-colored spots on ventral surface of l^elly ; a 

 whitish line just below eye; an oblique dusky bar on lower part of 

 opercles uniting under the throat; some lighter spots and reticulations on 

 under part of head ; dorsal with about four longitudinal rows of brown 

 spots ; pectorals and caudal gray. 



This species resembles C lapeinosomus, but differs in the location of anal 

 opening and in various other characters. 



One specimen, the type, 5.00 inches long, from the Rio Grande, Min- 

 danao ; No. 55,021 U. S. National Museum. 



