236 BULLETIN 18 0, UNITED STATES NATIONAL MUSEUM 



by those for two paratypes in parentheses, respectively.) Length of 

 head 29.6 (29.3; 31.0) ; greatest depth 17.6 (19.9; 17.5) ; diameter of eye 

 8.1 (8.3; 10.1) ; distance from tip of snout to rear edge of maxillaries 

 9.6 (10.0; 9.7) ; length of snout 9.6 (9.7; 9.3) ; postorbital length of 

 head 13.8 (13.8; 13.4) ; least width of preorbital 4.8 (5.0; 5.6) ; length 

 of caudal peduncle 23.0 (25.7; 23.9) ; least depth of caudal peduncle 

 11.4 (11.0; 11.4) ; tip of snout to origin of dorsal fin 36.0 (37.6; 36.6; 

 snout to origin of anal fin 56.2 (54.6; 59.0); snout to anus 48.4 

 (50.0; 53.0) ; longest (second or third) spine of first dorsal fin 16.4 

 (16.8; 18.6); longest (second or third) soft ray of dorsal fin 16.4 

 (17.9; 20.5); longest (sixth or seventh) ray of anal fin 17.4 (16.3; 

 16.8) ; longest (middle) ray of caudal fin 29.3 (26.0; 31.7) ; longest 



Figure 19. — Gnatholepis hololepis, new species: Holotype (U.S.N.M. No. 116110), 

 33.4 mm. in standard length. 



pectoral fin ray 24.5 (25,1 ; 26.8) ; longest pelvic fin ray 23.9 

 (24.3.25.0). 



Dorsal fin rays VI-I, 10 (VI-I, 10; VI-I, 10; VI-I, 10; VI-I, 10; 

 VI-I, 10); anal fin rays I, 9 (I, 9; I, 9; I, 9; I, 9; I, 9) ; pec- 

 toral fin rays 16 (16; 16; 16; 17; 15) ; pelvic fin rays always I, 5; 

 number of scale rows from upper edge of gill opening to base of 

 caudal fin 27 (28; 27; 27; — ; 27); number of scales in front of 

 dorsal fin 8 (8; -; 8; 8; -;) ; number of scales in the transverse 

 series 8 (8; 8; 8;-;-;). See table 26. 



Color, pale with brownish blotches on sides; below eye a wide 

 brownish band somewhat broken by paler areas and not extending 

 below level of rear of maxillary; snout, upper part of head, back, 

 and upper sides with small pigmented area or blotches; along midaxis 

 of body five prominent, larger and darker blotches ; middle of under 

 side of lower jaw with pigment, rest of body pale; caudal, anal and 

 dorsal fins with traces of a barred color pattern; opercle with a 

 more or less lengthwise blotch; base of pectoral fin with a pair of 

 lengthwise streaks, the upper longer and more intense and extending 

 on base of pectoral rays ; pelvics somewhat silvery. 



Gill membranes broadly joined to isthmus, the gill opening not 

 confined to in front of pectoral fin base ; cheeks, opercles, breast, nape, 



