WESTERN ATLANTIC PERCOPHIDID FISHES — GINSBURG 635 



light, without pigment (in one specimen a small black spot at base of 

 fin behind third spine); anal whitish, broadly margined with black; 

 other fins more or less dusky, especially distally. 



Holotype: USNM 108392. Caroline Sta. 81; lat. 18°35'30" N., 

 long. 65°23'54'' W.; off Virgin Islands, 300 fathoms; Feb. 26, 1933; 

 186 mm., 154 mm. in standard length. 



Paratypes: Caroline Sta. 100; lat. 18°40'15" N., long. 64°50'15" 

 W., off Virgin Islands, 150 fathoms; Mar. 4, 1933; 2 specimens, 

 185-202 mm. (USNM 108391). 



Comparison: In general appearance, as compared with anatirostris 

 and gohioides, this species seems to be a somewhat more compact fish, 

 not as slender as its two near congeners, with a shorter snout, larger 

 eye and somewhat different color pattern. Differences in the pro- 

 portional measurements of the depth of the body and caudal peduncle 

 do not show up well even in the few specimens measured (compare 

 accounts of the species). As the eye is larger and the snout shorter, 

 at least on the average, in this species than in the other two, the 

 numerical value of the ratio of the snout divided by the eye for aU 

 three species is given in table 4. When specimens of approximately 

 like size are compared (table 4), macromma differs from both species, 

 the extent of divergence being greater when compared with anatiros- 

 tris. This species has lower counts of scales and pectoral and dorsal 

 rays, at least on the average, than the other two species (tables 1, 2). 

 In the nimiber of dorsal rays it intergrades with anatirostris, but is 

 well distinguished from gohioides. Taldng aU the marked structural 

 differences and the color pattern into consideration, it is not difficult 

 to distinguish macromma from anatirostris and gohioides. Its distinc- 

 tion from the other two Western Atlantic percophidid species is indi- 

 cated under their accounts. It is compared with Hypsicometes 

 heterurus Miranda Ribeiro on page 626. 



Bembrops arui tiros tris, new species 



Description: D VI; 14-15. A 17-18. P 26-28. Sc 61-69. GR 

 4-6 + 14-16. Dorsal and anal rays usually 15 and 18, often 14 and 17, 

 respectively. Pectoral rays with the mode at 27, varying 26-28. 

 Gill rakers, including the 1-4 tubercles at both ends of the arch, 

 nearly always 5 on upper limb, infrequently 4 or 6, modally 15, varying 

 14-16 on lower limb; usually 20 in combined number on both limbs, 

 varying 18-21. The larger males having the second dorsal spine 

 filamentous, considerably prolonged, reaching base of second dorsal 

 ray in one male 177 mm., base of fourth to sixth ray in six males 

 195-250 mm., base of sixth to ninth ray in six males 250-315 mm., 

 not prolonged in 7 males 185 mm. or less. (This development is not 



