35« 



FLATFISHES (HETEROSOMATA) 



irregular series of conical teeth. Scales rather feebly imbricated, some more or less 

 embedded ; i lo to 1 25 in a longitudinal series above lateral line ; some supplementary 

 scales in region of pores of lateral line. Lateral line with a distinct but rather low 

 curve above the pectoral fin ; a short supratcmporal branch. Dorsal 85-97 ; origin 

 a little on blind side of head at a distance behind posterior nostril which is less than 

 1 diameter of eye. aliove anterior edge or anterior part of eye : highest rays ij to 

 twice in length of head. Anal 69-76. Pectoral of ocular side with 9 to 11 rays 

 (5 to 8 branched), length ij to ij in that of head. I'elvics with 5 or 6 rays. Caudal 

 with 18 or 19 rays (13 to 15 branched), rounded, more or less densely scaled ; caudal 

 peduncle j to 3I times as deep as long. Pyloric appendages of moderate length. 

 Vertebra" 48 (13 -f- 35). Brownish or greyish, often spotted, blotched or marbled 

 with paler and darker, the markings being very variable ; usually some dark spots 

 or blotches on median fins ; base of pectoral dusky, remainder of fin with cloudy 

 markings. 



Type. — Not traced. 



Distribution. — Coasts of north-western Europe, from the White Sea to the Bay 

 of Biscay ; Iceland. 



Specimens Examined : 



I (370 mm). Orange and blark. 

 Attains to a length of 12 to 15 mches 



2. MICROSTOMUS ACHNE (Jordan and Starks). 



i-emqua achne, Jordan and Starks, 1904, Bull. U.S. Com. Fish., x.xii, (1902), p. 6^5, pi. 



Jordan and Starks, 1906, Proc. U.S. Nat. Mus., xxxi, p. 210, fig. 16 ; Jordan, 1 



Snyder, 1913, J. Coll. Sci. Tokyo, xxxiii (i), p. 328, fig. 277. 

 .\Hcrostnmus itelUn. Jordan and Starks, 190(1, Proc. U.S. Nat. Mus., xxxi, p. 225, fig. 2; 



K112, Proc. U.S. Nat. Mus., xlii, p. 440 ; Jordan, Tanaka and Snyder, 1913. J- Coll. '. 



xxxiii (I), p. 331, fig. 280 ; Hubbs, 1915, Proc. U.S. Nat. Mus., xlviii, p. 489 ; 



. Japan, xxii, p. 390, pi. cvi, fig. 326 ; Hubbs, i 

 and Hubbs, 1925, Mem. Carnegie Mus.. x, p. 300 

 366 ; Soldatov and Lindberg. 1930, Bull. Pac. Sci. 



18, Annol. Zool. Japo 



Schimdt, 



C.R. .\cad. Sci. Ru 



I ; Snyder, 



5Ci. Tokyo, 



laka, 1916, 



; Jordan 



