NO. 2149. JAPANESE MACROUROID FISHES— OILBERT AND HUBBS. 185 



color, with much more silver; fins light, ventral blacldsh near base 

 only. 



First dorsal spine small but sharp, compressed anteroposteriorly ; 

 the second spine rounded and smooth. 



The specimens dredged in comparatively shallow water, off Matsu- 

 shima Bay, greatly extend the northern limit of distribution of this 

 species. They are evidently the young of A. macrochir; they differ 

 from the southern specimens in the much lighter color, as described, 

 and in the proportions of the head, having the eye larger, the snout 

 longer, and the postorbital length of head shorter. These differences 

 are assumed to be due to the difference in size between the northern 

 and southern specimens, and are well illustrated in the tables of pro- 

 portional measurements. The specimens from station 5048 are from 

 91 to 2G8 mm. long, 21 to 72 mm. to anus. A similar specimen, 19 

 mm. long to anus, was dredged in the Eastern Sea. 



Tables of measurements in hundredths of length to anus. 



SOUTHERN SPECIMENS. 



1 Tokyo market: K. Otaki; No. 8442, Stanford Univ. Museum. 



2 Sagami Bay, Japan; Albatross, 1900; No. 8307, Stanford Univ. Museum. 

 « A pseudocaudal developed 



