SCIENTIFIC RESULTS OF EXPLORATIONS BY THE U. S. FISH COM- 

 MISSION STEAMER ALBATROSS. 



[Published by permission of Hon. Marshall McDonald, Commissioucr of Fislieries.] 



No. XL— NEW FISHES COLLECTED OFF THE COAST OF ALASKA AND THE 

 ADJACENT KEGION SOUTHWARD. 



BY 



Tarleton H. Bean, 



Ichthyologisi , U. S. Fish Conuiiission. 



The fishes herewith described were obtained by the U. S. Fish 

 Commission steamer Albatross during the summer of 1888, chiefly 

 in August, in the waters of AUiska. Eight of the genera are among 

 the common forms of the Atlantic. Four genera are apparently new to 

 science. 



Chalinura serrula, new species. 



Three individuals were trawled August 29, 1888, at station 2859, 

 north latitude 55° 20', west longitude 136o 20', in a depth of 1,509 

 fathoms, east of Prince of Wales Island. The type of the description 

 is 12i inches long. The head is contained nearly 5i- times in the total 

 length. The eye is somewhat shorter than the snout and equals one- 

 fifth length of head. A median serrated keel on the nose. The max- 

 illa is two fifths as long as the head and extends to below the end of 

 the eye. Cheeks and opercles scaly. The barbel equals the snout in 

 length and two ninths of the head. The mandible is about one-half 

 as long as the head. A row of five pores on its under surface and six 

 pores on tlie edge of the suborbitals. 



The branchiostegal membrane is narrowly free from the isthmus. The 

 first gill-opening is restricted, as in Alacnirus. The gill-rakers are small 

 tubercles, eleven below the angle of the first arch and only one or two 

 above the angle. 



The pectoral equals the post-orbital part of the head in length. The 

 ventral is about as long as the head. The longest dorsal spine is strongly 

 serrated and nearly equals the head without the snout. The dorsals 

 are separated by an interspace two fifths as long as the head. B. 6 ; 

 D. ii, 9-7G (?); scales, 7 or 8-130-17. 



Body brown; head, abdomen, and inside of mouth purple; the pur- 

 ple areas less marked in the type specimen, which is 12.V inches long. 



Proceedings of National Museum, Vol. XIII— No. 795. 



