NO. 1909. JAPANESE SffORE FISHES— SNYDER. 427 



examples of the latter, somewhat larger than the smaller Japanese 

 specimen, have comparatively heavier and longer spines on the head, 

 shorter doi-sal spines, and slightly wider interorbital areas. These 

 species are related to S. introniger, and a direct comparison of Japa- 

 nese and California sjieciraens does not contribute anything to an easy 

 discrimination of either form. 



SEBASTODES FUSCESCENS (Houttuyn). 



Mororan, Hakodate, and Tokyo markets; Same, where taken in 

 the pools. 



SEBASTODES TANAK^ Snyder. 



Plate 54, fig. 2. 

 Sebastodes taiiaLx Snyder, Proc. U. S. Nat. Mus., vol. 40, 1812, p. 536. 

 Market at Hakodate. 

 This species was named for Mr. Shigeho Tanaka. 



SEBASTICHTHYS VULPES (Steindachner and DSderlein). 



Hakodate. 



SEBASTICHTHYS NIVOSUS (HilgendorJ). 



Hakodate and Tokyo markets. 



SEBASTICHTHYS TRIVITTATUS (Hilgendori). 



Otaru and Hakodate markets. 



SEBASTICHTHYS MITSUKURII (Cramer). 



Shiogama; Tokyo and Nanao markets. 



SEBASTICHTHYS ELEGANS (Steindachner and Doderlein). 



Toyko and Misaki pools. 



SEBASTICHTHYS PACHYCEPHALUS (Temminck and Schlegel)). 



Otaru, Hakodate, Aikawa, Misaki, Akune, and Tokyo; pools and 

 market. 



Small specimens from the pools at Aikawa and Misaki have 3 dense 

 black bands crossing the body, one passing through dorsal fin and the 

 other on the caudal peduncle. One specimen has no tympanic spine 

 developed. 



SEBASTISCUS MARMORATUS (Cuvler and Valenciennes). 



Hakodate, Tokyo, Misaki, Nanao, Kagoshima, and Nagasaki 

 markets. 



One of the specimens from Nanao is rather light in color, has the 

 spines rather more slender than the others, and in other respects 

 resembles S. albqfasciatus. It has no trace of a subocular spine. 



HELICOLENUS HILGENDORFI Doderlein. 



Shimizu market. 



The writer is inclined to follow Doderlein ^ in regarding tliis species 

 as distinct from //. dactylopterus (Do La Roche). In comparing 

 several Japanese specimens with others from the Atlantic, it is found 

 that the former have a considerably larger eye and a narrower inter- 

 orbital space, the median channel of wliich is also narrower. 



I Fische Japans, vol. 4, 1884, p. 34. 



