PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 41 



very fat. As a pan-fisli it ranks very liigli, being scarcely inferior to 

 the eulaclion. The Mypomesus otidus of Kamtschatka has been shown 

 by Dr. Bean to be a cliftereut species, spawning in fresh waters. 



62. Thaleiclithys pacificus (Richardson) Grd. — Eulaclion; Hoolakin ; Candlc-Jlsh ; 



Grease-fish ; Smelt. 



From Oregon northward, ascending the rivers in spring in enoruions 

 nnoibers, but not for a great distance. It is especially nuuierons in 

 Frazer's Eiver and Nass Eiver, and very many ascend the Columbia. 

 The run m Frazer's Eiver takes place in May. They are exceedingly 

 fat, and when dry are said to burn like a candle. On Nass Eiver is a 

 factory for the manufacture of eulachon oil, intended as a substitute 

 for cod-liver oil. The fact that eulachon oil is semi-solid or lard-like at 

 ordinary temperature is a serious hindrance to its salability for this pur 

 pose. When fresh, the eulachon is one of the very finest of pan-fishes, 

 and many of them are sent to the markets of Victoria. Pickled eu- 

 lachons are sent to San Francisco. It reaches a length of a little less 

 than a foot. 



63. Osmerus thaleichthys Ayres. — Smelt. 



From Monterey northward ; rather common, but not in such great num- 

 bers as the surf-smelt and the eulachon. It is smaller and less valu- 

 able than these. Little distinctive is kuown of its habits. Those brought 

 into market are usually soft, and are less salable than the spurious 

 ^^ smelt,^^ Atherinoijsis, with which they are often mixed. It is rarely 

 more than 6 inches in length. 



64. Osmerus attenuatus Lockington. — Smelt. 



Everywhere found with the preceding and scarcely less common. 

 Nothing distinctive is known of its habits, and it may possibly turn out 

 to be the female of the same species. 



Family ALEPIDOSAUEID^. 



65. Alepidosaurus borealis Gill. — Hand-satv Fish. 



Puget Sound and northward, in deep water; cast on shore by storms. 

 A head from Puget Sound in the Museum of the California Academy of 

 Sciences, and another from the Aleutian Islands in the Museum of the 

 Alaska Commercial Company. 



Family PAEALEPID.E. 



66. Sudis ringens Jordan & Gilbert. 



Known only from one specimen, about 8 inches in length, from the 

 stomach of a Merlucius, itself in the stomach of an Orcynus alalonga, in 

 Santa Barbara Channel. 



67. Paralepis coruscans J. & G. 



One specimen obtained at Port Townsend, Wash. It is very close to 

 Paralepis borealis Eeinh. from Greenland, if not identical with it. 



