362 PROCEEDINGS OP THE ACADEMY OF May, 



NOTES ON SOME ARCTIC FISHES. WITH A DESCRIPTION OF A NEW 



ONCOCOTTUS. 



BY HENRY W. FOWLER. 



Dr. Milton J. Greenman, of the Wistar Institute of Anatomy, in 

 Philadelphia, has submitted a small collection of Arctic fishes for 

 my examination. The specimens were all obtained in noi'thern 

 Alaska by Mr. E. A. Macllhenny while at Point Barrow. 



SALMONID^. 

 Coregonus kennicotti Jordan and Gilbert. 



Milner, in Jordan and Gilbert, Bull. U. S. Nat. Mus., No. 16, 1882, p. 298. 



Fort Good Hope, British America, and Yucon River, Alaska. (J. Kenni- 



cott. Types Nos. 8,971 and 9,600, U. S. N. M.) Fowler, Science, 



XXI, 1905, p. 315. 

 Coregonus nelsonii Fowler, Proc. Amer. Philos. See. Phila., XLIII, 1904, 



p. 451, Pis. 8 and 9. Meade River and Point Barrow, Alaska. (Not of 



Bean.) 



Four large examples from Meade river and Point Barrow, Alaska. 

 These I had previously recorded wrongly under the name Coregonus 

 nelsonii, as now appears from an examination of more material. 

 Dr. Smith has figured C. kennicotti,^ which will be found to agree 

 largely with this account. At Point Barrow Mr. Macllhenny's 

 notes indicate that C. kennicotti is known as 'Anocta.' 



Coregonus nelsonii Bean. Fig. 1." 



Proc. U. S. Nat. Mus., VII, 1884 (1885), p. 48. Naulato, Alaska. (Mr. 

 E. W. Nelson. TjTpe No. 29,903, U. S. N. M.) 



Head 5; depth 3i; D. iv, 10, i; A. iv, 11, i; P. I, 14; V. I, 10; 

 scales 74 in lateral line to l)ase of caudal, and 4 more on latter; 10 

 scales obliquely back from origin of dorsal to lateral line; 9 scales 

 between origin of ventral and lateral line in a vertical series ; 8 scales 

 obliquely forward to lateral line from origin of anal ; about 40 scales 

 before dorsal; width of head If in its length; depth of head 1^; 

 snout 4; eye S^-; maxillary 3|-; interorbital space 3^; least depth of 

 caudal peduncle 2f ; length of base of dorsal If; of anal If; length 

 of upper caudal lobe (damaged) about 1; pectoral If; ventral l^. 



' Rep. U. S. Fish Comm., XX, 1894 (1896), p. 294, PI. 15. 



* The accompanying figure represents a male without the characteristic hump. 



