PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 161 



Toi. Til, ]¥o. 1 1 . Washington, D. €. July 39, I 884. 



2^ times in the length of the head. The length of the second anal spine 

 is slightly more than twice the diameter of the eye, and about 3 times 

 the length of the first anal spine. The third anal si)ine is about two- 

 thirds of the length of the second, and is contained 2J times in the 

 length of the head. 



The length of the pectoral fin is about twice that of the postorbital 

 part of the head, and equals the height of the body at the vent. The 

 ventral is two-thirds as long as the head. 



Color, in spirits, olive-gray, with brownish shades. The opercular 

 flap is brown. The membrane of the spinous dorsal is edged with black. 

 The soft dorsal and anal are faintly spotted with brown, the bases of 

 the fins being light. The tips of the ventrals and of the middle caudal 

 rays are dusky. 



B. YII; D. XIII, 12; A. Ill, 7; scales 8-50-15. 



A table of measurements follows : 



Measurements. 



POMADASYS APPROXIMANS. 



Current number of specimen 

 Locality 



30084 

 Jamaica. 



30062 

 Jamaica. 



Millime- 

 ters. 



lOOtha of 

 length. 



Millime- 

 ters. 



lOOths of 

 length. 



Length to oiigin of middle caudal rays 



Body: 



Greatest height 



Greatest width 



Height at ventrals 



Least height of tail , 



Length of caudal peduncle 



Head: 



Greatest length 



Distance from snout to nape 



Greatest width 



Width of interorbital area 



Leniith of snout 



Length of operculum with flap 



Length of maxillary 



Length of mandible 



Distance from snout to orbit 



Diameter of orbit 



Dorsal (spinous) : 



Distance from snout 



Length of base 



Length of longest spine (fourth) 



Length of lirst spine 



Length of second spine 



Length of last spine 



Dorsal (soft) : 



Length of base 



Length of antecedent spine 



Length of first ray 



Length of longest ray 



Length of last ray , 



Anal: 



Distance from snout 



Length of base 



Length of first spine 



Length of second spine 



Length of third spine 



Length of first ray 



Length of longest ray , 



Lengt h of last ray 



Proc. Nat. Mus. 84 11 



188 



68 

 29 

 68 

 19 

 26 



65 



48 

 30 

 13 

 18 

 21 

 18 

 24 

 20 

 19 



74 

 74 

 34 

 10 

 20 

 19 



33 

 19 

 27 

 28 

 15 



136 

 26 

 13 

 39 

 26 

 28 

 28 

 13 



36 



15.4 



36 



10 



14 



34.5 

 25.5 

 16 



7 



9.5 

 11 



9.5 

 13 

 10.6 

 10 



40 

 40 

 18 

 5 

 10.6 

 10 



17.5 

 10 

 14 

 15 

 8 



72.3 

 14 



7 

 20.7 

 14 

 15 

 15 



7 



180 



65 

 28 

 65 

 18 

 26 



61 

 46 

 29 

 12 

 16 

 19 

 17 

 23 

 20 

 18J 



72 

 70 

 33 

 9 

 17 

 17 



32 

 17 

 25 

 26 

 13 



132 

 25 

 12J 

 38 

 26 

 27 

 27 

 14 



36 



15.5 



36 



10 



14.4 



34 

 25 

 16 



7 



9 

 10.6 



9.4 

 12.5 

 11 

 10 



40 



39 



18. 



5 



9. 



9. 



18 

 9.4 

 14 

 14.4 



7 



73 

 14 



7 

 21 



14.4 

 15 

 15 



7.8 



