The h'ish Natuyalist, 



Jauuary, 



Anuther new species described from a single specimen, 

 only six inches long, inhabits Lough Coomasaharn, in Kerry. 

 It agrees in most respects with 5. Colii, but has the interor- 

 bital space flatter and narrower (width 3-^ in the length of 

 head instead of 3 J in 5 O/// of this size) and the gill-rakers 

 longer and more numerous, the latter feature suggesting the 

 specific \\2i\\\^ fimbtiains. In other Irish char I count from 

 12 to 16 gill-rakers on the lower limb of the anterior branchial 

 arch, but in Salvelhms fimbriahcs there are 18 or 19. 



A fourth new species, Salvelimis obtusus^ is known from 

 Loughs Luggala and Dan in Wicklow, and Killarney and 

 Acoose in Kerry. It is distinguished by the short, blunt snout 

 and the rounded lower jaw% which is included within the 

 upper when the mouth is closed. In most other characters it 

 resembles S. Colli, but it has the narrow, flat interorbital 

 region of S. fiinbriatus, the interorbital width being contained 

 3J times (adult) to 35 times (young) in the length of the head. 

 This form attains a length of eight inches. 



o. 



FiGURK 2. 



Aulerior brauchial arches of SalvcUnus Colii (a) aud S. Jif/ibriafn$ {b) 

 showiug the gill-rakers. 



Our knowledge of the Irish char is verj' incomplete, and no 

 satisfactory account will be possible until several examples 

 from each lake which contains these fish are available for 

 description. I have examined good series of specimens from 

 only three lakes, viz., Eask, Melvin, and Luggala, and I have 

 seen none at all from several lakes in which char are known 

 to occur, so the provisional character of my revision will be 

 evident. It was thought worth while, however, to publish a 

 preliminary account, in the hope that interest might be aroused 

 and further material for study result. 



British Museum (Natural History), I.oudou, S.W, 



