GILBERT AND STAUKS — FISHES OF PANAMA BAY 



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Measurements in Hundredths of Length without Caudal 



Lent,rtli witliout caiKJal, in mm 



Mead 



Depth 



Kye 



(Irijjin of anal from caudal base.. 

 Orij^in of first dorsal from caudal. 



Leni^-th of pectoral 



l.cns^th i>f anal base 



Xnmbcr of ilorsal spines 



Numbir of dorsal rays 



NiimbtT of anal rays 



Xuml" I I if s> ules 



103 

 20J 



'7 

 6 



38 



43 



IM 

 _' I 

 \' 

 I, 'I 

 1,21 

 50 



Fin Form u hi' of the Co -Types. 



113. Atherinella panamensis Sieindachner. 



I'LATE IX, Fit;. 17. 



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



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

 Head 4^ in length; depth 41. Eye 3| in head; snout 83; interorbital width 2J. The 

 enlarged outer teeth of the upper jaw are in two series only in front of jaw, in one 

 series laterally. Pectoral 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/E. 

 114. Mugil cephalus Linnceus. 



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

 by other observers. 



115. Mugil thoburni Jordan Jc Stiirks. 



Recorded (as 3Iugil incilis) from Panama (Jordan & Gilbert, 1882?*, p. G24) 

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

 "Albatross" at the Galapagos Islands. 



