GILBERT AND STARKS — FISHES OF PANAMA BAY 



59 



Measurements in Hundredths of Length without Caudal. 



Length without caudal, in mm 



Head 



Depth 



Eye 



Origin of anal from caudal base.. 

 Origin of first dorsal from caudal. 



Length of pectoral 



Length of anal base 



Number of dorsal spines 



Number of dorsal rays 



Number of anal rays 



Number of scales 



95 



20| 

 17 



6 



38 



43 



i8| 



20 



V 



1,9 



1,20 



51 



Fin Form III cz 0/ the Co -Types. 



Dorsal 



Anal..., 



vi-1,9 

 I 22 



v-i,9 

 1,20 



iv-i,9 

 1,20 



V 1-1,9 

 1,22 



v-i,9 

 1,22 



V- (broken) 

 (broken) 



Dorsal 

 Anal..., 



v-( broken) 

 1,20 



v-i,8 

 1,20 



iv-i,9 

 1,20 



v-i,9 

 1,21 



v-i,g 

 1,20 



v-i,9 

 1,20 



v-i,9 

 1,19 



113. Atherinella panamensis Sieindachner . 



Plate IX, Fig. 17. 



A single specimen obtained, 13 cm. in entire length. 



We add the following details to Dr Steindachner's excellent description: — 

 Head 4| in length; depth 44. Eye 3| in head; snout 3|; interorbital width 2|. The 

 enlarged outer teeth of the up]3er jaw are in two series only in front of jaw, in one 

 series laterally. Pectoi'al 2J in length. The insertion of the ventrals is nearer the 

 tip of the lower jaw than the base of the caudal by half the length of the head. 



Family MUGILID^. 

 114. Mugil cephalus Linnceus. 



Taken by Gilbert at Panama in 1883 (Jordan, 1885, p. 371); not recorded 

 by other observers. 



115. Mugil thoburni Jordan £ Starks. 



Recorded (as Mugil incilis) from Panama (Jordan & Gilbert, 1882 n, p. 624)* 

 and from Chiapam (Steindachner). The types of the species were collected by the 

 "Albatross" at the Galapagos Islands. 



