276 BULLETIN OF THE 



The names Bova and Carache suggest a possible likening of the fishes to 

 cattle. A scabby sheep is called Carache, though the term is properly the 

 name of the scab itself. 



O. Mulleri Cuv. et Yal. 



Common name Carache. Not so plentiful as the preceding. Its angular 

 head and shoulders, the great width of the latter compared with that of the 

 body, and the strongly granulated scales serve to distinguish this sjiecies 

 from Agassizii, and the narrow muzzle and small mouth from albus. 



In some individuals the angles of the head are less pronounced than in 

 others. The colors in different specimens vary from quite light to very 

 dark. None obtained were longer than six inches and a half. 



O. albus Cuv. et Val. 

 » 



Less numerous than the other Caraches. The muzzle is wider, the mouth 

 larger, and the head longer than in the species preceding. The head has the 

 aspect of that of Cuvieri. Color light brown, often reddish or yellowish. 

 None of the few examples taken exceeded six inches in length. In the young 

 of all the species the striation of the scales is plainly visible ; the granula- 

 tion on the anterior part of the body in several appears later. A number of 

 small fishes, less than half grown, which are considered the young of this 

 species were obtained at Moho. These differ somewhat from the adult ; the 

 back has a dorsal and two lateral series of spots ; the belly is of salmon 

 color and is closely covered with scales. The Indian from whom they were 

 purchased called them Silgo. 



The collection from which the foregoing list is made was said by the fish- 

 ermen to contain specimens of each of the different fishes found in the lake. 



Batrachiaxs. 



Cyclorhamphus marmoratus Dun. et Bibr. 

 Specimens were taken at Arequipa and at Vincocaya on the summit, 

 14,538 feet above the sea-level. The adult from the higher regions is about 

 half the size of that from nearer the coast, though similar in all other re- 

 spects. 



Cyclorhamphus culeus (nov. sp.) PI. I. 



Body large, depressed. Head rounded in front, wide, flattened. Skin 

 smooth, very loose and baggy, of the entire upper surface glandular, giving 

 off, when the animal is held in the hand for a little time, a secretion similar 

 to that of the Amblystomre. Fingers free. Toes rather more than half- 

 webbed. Frist cuneiform bone forming a slight jn'ominence. Tympanum 



