Revision of the Irish Char 



233 



longest \ the diameter of eye. 160 scales in a longitudinal 

 series. Dorsal 14, with 10 branched rays, its origin nearer to 

 the tip of snout than the base of caudal, the longest ray % 

 the length of head. Anal 12, with 8 branched rays. Pectoral 

 | the length of head, extending nearly f of the distance 

 from its base to the base of pelvics. Least depth of caudal 

 peduncle If in its length and f the length of head. Back 

 and sides brownish (in spirit) ; sides with rounded spots ; 

 abdomen silvery ; fins dusky. 



Hab. Lough Coomasaharn in Kerry. 



Here described from a single specimen ( ? ) 155 mm. in 

 total length. 



This form resembles S. colli, but differs in the narrow, flat, 

 interorbital region and the numerous gill-rakers, the latter 

 feature suggesting the specific name. 



6. Salvelinus obtusus, sp. n. 



Depth of body 4 to 5 in the length, length of head 4J to 4|. 

 Snout obtuse, with upper profile decurved throughout, not or 

 scarcely longer than eye, the diameter of which is 4^ to A\ in 



Fig-. 6. 



Salvelinus obtusus. Head from the side and from bolow. 



the length of head. Interorbital region flat, its width 31- to 

 3f in the length of head. Dentition feeble or moderate ; 

 lower jaw a little shorter than and included within the upper ; 



