6 



Ventrals a little posterior to the pectorals 

 rounded, two and one-fourth inches in height. 



Caudal slightly rounded, one inch and a half 

 in height, three inches and a half when expanded. 



Small scales extend far up on all the fins. 



Branchial rays seven. 



D. 13-13. A.3-8 V. 1-5. P. 7-10. C. 11. 



In color this fish is finely mottled with dusky 

 yellow and dark brown; on the fins the latter 

 hue predominates, and the lighter mottlings 

 'nave rather a bluish aspect. 



Sel> i ispinis. — Ayres. Length five and 



a half inches; depth one inch and one-tenth; V 

 of hint! one inch and seven-tenlhs. being a trfle 

 han one-third the total length. Form elon- 

 gated, much compressed. 



rv small, covering all parts of the fish 

 except the MS, the throat, and the Space an- 

 ir i" the eyes. 



if the head, not largely developed. The 

 pen uhnn has about live, distinct, flat, sharp 

 spines: the largest about a line in length The 

 operculum has two, distinct bat small: the mem- 

 branous part projects Blightly beyond them- The 

 suborbital, on the anterior inferior border has 

 three or four, quite small. The other parts 

 of the head have none, except that a slender, in- 

 conspicoooa ridge along the border of each par- 

 ietal bone is free at its tip. A very small spine 

 at the summit of the humeral tincture. 



The lower jaw is longer than the upper and 

 projects beyond it in such a manner that when 

 the mouth is closed it prolongs the line of the 

 dorsal aspect of the head. The line of closure of 

 the mouth is very oblique upwards, the gape 

 large, so that the point of the maxillary lies be- 

 yond the middle of the eye. 



Teeth fine, crowded, and even, in the lower jaw 

 on the intermaxillaries, the vomer, the palatine 

 bones, and the pharyngeals; those of each superior 

 pharyngeal are in three patches. 



Lateral line following nearly the curve of the 

 back. 



Tho first dorml fin arising above the opercular 

 angle is an inch and a half in length; the rays in- 

 crease in height to the fourth, which measures 

 eleven-twentieths of an inch, as do the two suc- 

 ceeding, and thence the height decreases, the last 

 ray seems to constitute rather a part of the 

 second dorsal, it is higher than the one preced- 

 ing. 



Second dorsal fin an inch in length, half an 

 inch in height; height diminishing posteriorly. 



Anal about coterminal with the second dorsal, 

 rounded, sixth-tenths of an inch in length ; height 

 equal to the length. 



Pectorals rounded one-fourth of an inch in 

 length, nine-tenths of an inch in height, destitute 

 i] thickened membrane, the four lower rays 

 simple. 



i ( ntrals even with the pectorals, three-fourths 

 of an inch in height. 



lal somewhat concave, three-fourth of an 

 inch in height of the external rays. 



D. 13-13 ; A. 3-7 ; V. 1-6 ; P. 5 ; C. 12. 



Color plain reddish brown above, lighter be- 

 neath. 



On motion of Dr. Ayres, it was 



Resolved, That the Recording Secretary be 

 directed to publish the proceedings of each meet- 

 ing of the Academy in the Pacific, as soon after 

 the meeting as practicable. 



