240 PROCEEDINGS OF THE NATIONAL MUSEUM. vol xxxi. 



eyed side with 9 rows of scales between them. Color, uniform brown- 

 ish. Length 200 mm. (Regan.) Inland Sea of Japan. 



This species differs from Cyjxx/lomys rohustus particularly in having 

 a larger eye. We have seen no specimens. 



{brti?mei/s^ brown.) 



88. ARELISCUS Jordan and Snyder. 



Arelisms Jordan and Snyder, Proc. U. S. Nat. Mus., XXIII, 1900, p. 380. 



{joj/neri.) 



This genus differs from Cyiioglossus in the presence of three lateral 

 lines on the left or eyed side of the l)od3\ The third or lowest of 

 these is often obsolete in the young. The genus is therefore little 

 different from Cynoglossus. 



{Arel, an Indian name of Ardia arel.) 



KEY TO SPECIES. 



«. Scales moderate, less than 100 in lateral line. 



h. Dorsal rays, 104; anal, 83; scales 70. Eye, 7 in liead; lower lateral line obso- 

 lete in yonng, the upper more or less interrnpted iiiterniptns, 56 



bb. Dorsal rays, 110; anal, 85; scales, 75. Eye, 15 in head; lower lateral line well 



developed joinieri, 57 



aa. Scales, very small, 120 to 150 in lateral line. 



c. Dorsal rays, 128; anal, 104; scales, 120. Eye, 8 in head jmrpurcotiKiculalus, 58 



cc. Dorsal rays, 123; anal rays, 95; scales, 145. Eyes very small semihvris, 59 



56. ARELISCUS INTERRUPTUS (Giinther). 



GENCHO (ORIGINAL ONEi. 



Cynoglusi^us Intrriviptus (it'NTiiEK, Sliore Fishes Challenger, 1880, p. 70, pi. xxx, 

 fig. B (Yokohama, Swatow). — Steindachner, Reise Aurora, 1896, p. 220 

 (Kobe, Hiogo, Nagasaki). — Otaki, Journ. Fish. Bur., 1897, p. 8. — Jordan 

 and Snyder, Proc. U. S. Nat. Mas., XXIII, 1900, p. 380 (Tokyo); Check 

 List, 1901, p. 123 (Yokohama). 



Head, 5| to 5i in length to base of caudal; depth, 8i to 3f. Upper 

 eye, 7 to 7^ in head. Dorsal, 102 to 106; anal, 80 to 86. Scales from 

 opposite gill opening to caudal base 05 to 70; from upper posterior 

 edge of opercle 5 or 6 more. 



Eyes very close together, but with an evident septum; anterior edge 

 of pupil opposite anterior edge of lower eye. End of maxillary under 

 posterior edge of pupil of lower eye. Anterior nostril in a tube in 

 front of lower eye; posterior nostril rather small, without a tube and 

 placed between front of eyes. 



Ventral joined to anal. Scales everywhere ctenoid except on ante- 

 rior part of blind side of head. Three lateral lines usually present, 

 the upper and lower ones not so well developed as in the genus 

 Usifiosita. Frequently the lower one is broken at irregular intervals, 

 and often, especially in the smaller examples, it is entirel}' absent, in 



