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ICHTHYOLOGY. 



63 



1 



The color is greyish brown above and laterally ; dingy yellow beneath. 

 Plate XXXIV, fig. 5, represents Tigoma pulchella, size of life ; fig. 6 is a scale from the 

 dorsal region ; fig. 7, a scale from the lateral line ; fig. 8, a scale from the abdominal region 



List of specimens. 



Catal. 

 No. 



Cor. No. 

 of teeth. 



No. of 

 spec. 



233 



2787 



2 



Locality. 



When col- 

 lected. 



Whence obtained. 



Nature of 

 specimen. 



Rio Mimbres, tributary of Lake 

 Guzman, Mexico. 



1851 



Collected by 



Col J. D. Graham. Alcoholic . . John H. Clark 





2. TIGOMA PURPUREA, Grd. 



This is a much stouter fish than T. pulchella, which it resembles in other respects ; but its 

 head is larger and its body shorter. The anterior margin of the dorsal is nearer the extremity 

 of the caudal than the tip of the snout, whilst in T. pulchella it is nearer to the snout than the 

 extremity of the caudal. The scales are also larger than in T. pulchella. The color is of 

 purplish black on the dorsal region and laterally ; beneath yellowish. 



purpurea 





List of specimens. 



Catal. Cor. No. !No. of 



No. 



spec 



Locality 



When col- 

 lected. 



Whence obtained. 



Nature of 

 specimen. 



224 



2778 



15 



San Bernardino, Rio Huagui, 

 west of the Sierra Madre. 



1854 



Major Emory Alcoholic. 



Collected by 



Dr. C. B. Kennedy 



• • • • 



3. TIGOMA INTERMEDIA, Grd. 



Intermediate between T. pulchella and T. purpurea, more closely related, however, to the 

 former than to the latter. The fins are much less developed, the inferior fins especially are 

 quite small. 



Syn. — Tigoma intermedia, Grd. in Proc. Acad. Nat. Sc. Philad. VIII, 1856, 206. 



List of specimens. 



Catal. Cor. No. 



No. 



of teeth. 



232 



2786 



No. of 

 spec. 



Locality. 



When 

 collected. 



Whence obtained. 



- 



20 



Rio San Pedro, tributary of the Gila. 



1851 



Col. J. D. Graham. 



Nature of 

 specimen. 



Collected by 



Alcoholic, ino. H. Clark 



