GILBEET AND STAKKS — FISHES OF PANAMA BAY 



123 



Measurements in Hundredths of Length without Caudal. 



Length from tip of upper jaw to caudal base in mm. 



Depth 



Head, from tip of upper jaw 



Eye. 



Maxillary 



Least width of suborbital 



Interorbital (bone) 



Length of third dorsal spine .... 



Length of fifth dorsal ray 



Length of longest anal ray 



Length of pectoral 



Length of ventrals 



Length of middle caudal rays ... 

 Least height of caudal peduncle . 



246 

 26 

 31 

 3i 

 14 

 4 

 10 

 10 



lOi^ 



13 

 27 



19 



22 



9 



224 



24 

 32 



3i 

 14 



4 

 II 



9^ 



1 1 



i3i 

 29 

 18 

 22 

 8i 



227. Larimus argenteus {Gill). 



BOCATUERTA BLANCA. 



Very abundant. 



In this species, a vertical line from the corner of the closed mouth passes mid- 

 way between the front of the orbit and the tip of the snout. The length of the snout 

 is two-fifths that of the maxillary. The gape is arched, with the convexity behind. 

 The anterior (lower) margin of the mandible is also strongly arched with its convexity 

 forwards. The eye is smaller than in any other species of the genus, 4| to 5 in head, 

 in adults. 



In life, very brilliant silvery on sides and below, the upper parts faintly olive, 

 with silvery, greenish and bluish reflections. The dorsal and anal are slightly dusky, 

 the pectorals translucent, the anal and ventrals white or faintly straw-colored. 



228. Larimus effulgens Gilbert. 



Plate XVI, Fig. 33. 



Larimus cffulgens Gilbert (Jordan & Evermann, 1898, p. 1421). 



Very close to L. acdivis, with which it agrees in almost all details of structure. The color 

 is, however, bright silvery without trace of stripes, as in L. argenteus. The pectoral fin is also much 

 longer. 



Dorsal XI, 28 to 30; anal II, 6; pectoral 16; head 3^1^ to 3!^; depth 2% to 3; pores of lateral 

 line 49 or 50. 



