3j8 FLATFISHES (HETEROSOMATA) 



I'robiibly identical with L aspt-ra, but boily rather more slender, its depth 2j to 

 2 J in the length ; upper jaw of ocular side nearly straight ; scales of ocular side, 

 if ctenoid, with a row of from 3 to 10 rather feeble spinules ; coloration uniform. 



Tyfk, — United States National Museum. No. 7,567^. 



Distribution. — Kamchatka (') ; Sakhalin Island. 



Specimen Ex.\mined : 



?? I (125 mm.). I'etrop.ivlusk Harbour, KMmchatk.i. liaden Powell. 



Hubbs (1915) describes three new species of Limanda from the North Pacific 

 (Sakhalin Island), all closely related to L. aspera, but some of the characters used 

 to distinguish these do not appear to be tenable. The form of the scales, number 

 of pores in the suborbital branch of the lateral line, and form of the anterior curve 

 of the lateral line are all very variable. All the examples of L. aspera e.xamined by 

 me have ctenoid scales with one, or at the most two or three spinules, so that if Hubbs 

 IS correct in describing forms in which the .scales have about 10 spinules, there would 

 appear to be a second Pacific species. In one of my specimens of aspera the inter- 

 orbital region is rather high and is not scaled, and the ridges of the head are somewhat 

 prominent (as in horigarei), but in other respects this appears to be a typical aspera, 

 and was collected in the Bering Sea. Quite recently, Rendahl (igji. .\rk, Zool., 

 \xii. No 18, p. 65) has discussed the status of these Pacific species of Limanda at some 

 length. 



4. LIMANDA FERRUGINEA (Storer). 



[Rusty Dab.] 



Platfssa ferruginea, Storer, 1839, Boston Journ. N.H., ii (3), p. 477 ; Rep. Ichth. Massach., p. 141, 

 pi. ii ; De Kay, 1842, N.H. New York, (Fish.), p. 297, pi. .\Uii, fig. 155 ; Storer, 1846, S>nopsis 

 Fish. N. Araer., p. 476 ; Storer, 1867, Hist. Fish. Massach., p. 198, pi. xxx, fig. 4. 



PlaUssa rostrata, Storer, 1850, Boston Journ. N.H., vi (2), p. 268, pi. viii, fig. 2. 



Myzopsettarostrala, Gill, 1861, Proc. Acad. Nat. Sci. Philad., Suppl. (Cat. Fish. E. toast N. Amer.), 

 p. 51. 



Pleuronedes fcrrugiiuus, Gunther, 1862, Cat. Fish., iv, p. 447; Jordan .ind Gilbert, 1883, Bull, 

 U.S. Nat. Mus., xvi, p. S34. 



Myznpsftla ferniginea, Gill, 1864, Proc. Acad. Nat. Sii. Philad,, xvi, p, 217. 



Limanda rnstrata, Gill, 1864, torn, cit., p. 217. 



Limanda ferruginea, Goode, 1881, Proc. U.S. Nat. Mus.,iii, (1880), p. 472 ; Goode, 1884, Nat. Hist. 

 .Aquat. Anim. (Fisheries Fish. Indust. U.S., i), pi. xlix ; Jordan and Goss, 1889, Rep. U.S. Com. 

 F'ish., xiv, (1886), p. 287, pi. ill, tig. 12 ; Goode and Bean, 1895, Ocean. Ichth., p. 427 ; Jordan 

 and Evermann, 189S, Bull. U.S. Nat. Mus., xlvii (3), p. 2644, pi. ccclxxvii, fig. 929 ; Bean, 

 1902, Ann. Rep. Forest F'ish Game Conim. N.Y., vi, (1901), p. 474 ; Huntsman, 1922, Contr. 

 Canad. Biol., 1921, No. iii.p. 2: ; Bigelow and Welsh, 1925, Bull. U.S. Bur. Fish., xl (i), p. 495, 

 figs. 251-4; Nichols and Breder, 1927, Zoologica N.V., ix, p. 17.S. fig,; Hildcbrand and 

 Schroeder, 1928, Bull. U.S. Bur. Fish., xliii (i), p. 168. 



Depth of body 2^ to 2| in the length, length of head 3 J to 4 J Upper profile of 

 head concave above eyes. Snout shorter than eye, diameter of which is 4^ to ji 

 in length of head ; lower eye very slightly in advance of upper ; interorbital ridge 

 very narrow, scaled ; postocular ridge not conspicuous, but distinctly rugose. 

 Maxillary extending to below anterior edge or anterior part of eye, length on ocular 

 ocular side 3j, on blind side 3^ in that of head ; lower jaw a little projecting, 25 to 

 2^ in head. Teeth obtusely conical or with truncated tips ; dental formula 



iJ-^ J'*. GiU-rakers of moderate length, rather slender; in tu 12 on Icnver 



10-16 + 30-4- 



part of anterior arch ; width of lower pharyngeals about 5 in length . a few teeth 

 forming an incomplete series between the two principal rows. Scales all more or 

 less imbricated, nearly all ctenoid on ocular side, cycloid on blind side ; 88 to 95 

 .scales in a longitudinal series above lateral line, 36 to 42 between lateral line and 

 middle of back Lateral line without supratemporal branch. Dorsal 77-85 ; origin 



