Chasmichthys. 101 
similar in form to the latter fin ; pectoral low, with silky undulated rays above, its 
posterior margin rounded; ventrals united, disk-like, rather short, but wide, the posterior 
margin strongly rounded; caudal rounded posteriorly. Scales rather small, cycloid, 
arranged more or less irregularly; narrow area before ventral and head entirely 
naked ; base of pectoral with slightly smaller scales; no lateral line; pores about 
nostrils and on suborbital, cheek, interorbital, lower jaw, opercle and on edge of 
preopercle well developed. 
Color in formalin dark brown, lighter beneath ; round or oblong light blotches 
arranged irregularly ; an oblong dark blotch at base of caudal ; first dorsal dark gray, 
with two dark bands which are intensified on the membrane behind last spine; 
second dorsal also dark gray, with several oblique, zigzag bands ; anal dusky, without 
markings ; caudal dark dusky, with vertical bands of dark spots ; second dorsal and 
anal as well as caudal with pale free margin ; pectoral dusky, its postero-inferior parts 
pale; ventral pale and plain. 
Described and figured from a specimen 9 cm. long as measured to tip of caudal, 
collected at Fukura, Province of Awaji, by Mr. Uchiyama, No. 2206, Science College 
Museum, Tokyo. 

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