NO. 1484. JAPANESE FLOUNDERS AND SOLES— JORDAN & STARRS. 223 



liorly, but not angulated at posterior end of curve. Blind side of 



body with thin, smooth, naked skin. 

 Color dark brown with some indefinite blotches of darker. 

 Here described from a specimen 34 cm. in length from Mororan 



We have specimens from Mororan, Hakodate, Aomori, Matsushima 



Bay, and Tokyo* 



{asperrhnus, very rough.) 



28. MICROSTOMUS Gottsche. 



Microstomus Gottsche, Archiv fur Naturgesch., 1835, p. 1.50 {latidens); not Micro- 

 stoma Risso, 1826. 

 Cynicoglossus Bonaparte, Fauna Italica, 1837, Pt. 19 {cynoglotisus Nilsson, not of 



LiNN.EUs). 



Cynoglossa Bonaparte, Catalogo Metodico Pesci Europei, 1846, p. 48 {microcepha- 



lus); not Cynoglossus Hamilton, 1822. 

 Brachyprosopon Bleeker, Comptes Rendus Acad. Sci. Amsterd., XIII, Pleuron., 



p. 7, 1862 (microcephalus) . 



Body elongate, compressed; mouth ver}" small; teeth broad, incisor- 

 like, on blind side onl}^; scales small, all cycloid; vertebra? numerous 

 (48 to 52); dorsal ra3\s, 90 to 100; anal rays, 70 to 85; anal spine obso- 

 lete; left side of skull normal, without mucous cavities; ventral tins 

 with 5 rays each. Arctic seas. This genus is widel}- separated from 

 PI eur on ectes and its allies b}^ its greatly increased number of vertebrte, 

 a character accompanied bv a similar increase in the number of tin rays. 

 It is close to GlyptoeephaluSj but the lack of the cavernous structure 

 of the bones of the head, a structure peculiar to the species of that 

 genus sufficiently distinguishes it, 



{juiKpog^ small; ffrojua, mouth.) 



KEY TO SPECIES. 



a. Body slender and fragile, the depth 3^ in length; dorsal rays about 93; anal 80; 



scales 90; color uniform hUahara.', 44 



aa. Body rather robust, the depth 2 J in length. Dorsal rays about 92; anal 76; 

 scales 112; color brown, often blotched with rusty red stelleri, 45 



44. MICROSTOMUS KITAHAR^ Jordan and Starks. 



Pleuronectes cynoglossus Otaki, Journ. Fish. Bur., 1897, p. 7, pi. vi, tig. 7 (Japan; 



not of LlNNvEUS. ) 



Mi/rostomus kUaharse Jordan and Starks, Bull. U. S. Fish. Com., XXII, 1904, 

 p. 625, pi. VII, fig. 2 (Matsushima Bay, Suruga Bay, Tsuruga, Japan Sea; 

 Tokyo). 



Habitat. — Coasts of northern Japan south to Tsuruga. 



Head, 4,25 to 4,5 in length; depth, 3,5 to 3.75; D. 91 to 96; A. 75 

 to 83; scales, 87 to 96 (pores); eye, 2.83 to 3.16 in head; snout from 

 upper eye, 4.33 to 4.75; maxillary, 3.75 to 4; pectoral of eyed side, 

 1.83 to 2.33, of blind side, 2.25 to 3; ventral, 3,5; caudal, 1,25, 



Anterior upper profile evenly convex; the upper eye protruding 

 above it; lower eye much in advance of upper, the eyes separated by 

 Proc. N. M. vol. xxxi— 06 15 



