240 



PROCEEDINGS OF THE ACADEMY OF 



[1880. 



The single specimen from which the above description is taken 

 was brought from the Colorado River, at the junction of the Gila, 

 and was sent to the museum of the California Academj^ of 

 Sciences by John E. Currj^, Esq., Civil Engineer. 



It is said that the species is not uncommon in the locality from 

 which this specimen was procured, and it is much to be regretted 

 that we have onl}- this example, especially since it is greatly 

 damaged by the extraction of the large inter-neural some two 

 years ago. The air-bladder is destroyed, so that it is impossible 

 to tell whether it agrees with the other species of Gatostomus, in 

 having that organ divided into two portions. The extremities of 

 the fins are also much broken, and the shape of the body distorted. 



Dimensions 



Total length, 



Length to base of caudal. 



Greatest depth, about . 



Length of head, . 



" top of head, 



" snout, from e^'e, 



Longitudinal diameter of eye, 



Inter-ocular width, 



Depth of head, at front of eye, 



Snout, from front of uostrils, 



Tip of snout to origin of dorsal, ii 



Length of base of dorsal. 



Height of longest dorsal ray, 



Tip of snout to anterior portion of 



Length of pectoral fin, 



Tip of snout to anterior portion of 



Length of ventrals, 

 '• anal base, 



*■' longest anal ray, . 



Tip of snout to origin of anal, 



Width of caudal peduncle, . 



Length of first inter-neural, . 



Heiiiht of " '• 



a straight line 



pectoral 

 ventrals 



base 



INCHES. 



Hi 



n 

 n 



2V 



Wa 



j>_ 



16 



27 

 3 2 



2| 



1 15 



2H 



^ 3 

 1^ 



6| 



3^ 



1 5 

 T« 



29 

 32 



