29<) 



FLATFISHES (1 IF.Tl'.KOSOMATA) 



ocular sitle, ctenoid or cvcloid on blind side ; N5 to 97 in lateral Ime. 26 to 44 between 

 lateral line and midille of back. Lateral line nearly straight. Dorsal (76) 78-98 

 (101) ; origin above anterior part of eye. Anal 60-79. Contours of posterior parts 

 of dorsal and anal tins (at least in adults) more or less convex. Pectoral of ocular 

 side with 9 to 12 rays, length ij to 2^ in that of head. Caudal with 18 or 19 rays 

 (12 or n branched)' double-truncate; caudal peduncle as long as deep or a httle 

 deeper than long. Brownish ; with or without some darker spots of varying size ; 

 fins gencrallv paler. 



DisTRiBiTioN. — North .\tlantic, southwards to Cape Cod and the British Isles. 



This species appears to be divisible into two distinct forms, each with its own 

 geographical range, which may be regarded as subspecies. As is to be expected, they 

 tend to intergrade in the areas where their ranges overlap. Specimens from Iceland 

 and Spitzbergen, for example, approach the American subspecies in depth of body, 

 number of scales, etc. 



1,/ Hll'l'fX-.LOSSOlDES PLATESSOIDES I'LATESSOIUES (Fal.ncius). 



I^S.VND D.\B 



-Hippr.glmsoidcs plat 



Pli-umniili-i plalissiHih-s. I'.ibntius. i/S.i, I-'. (,nicn. p 



Vid. Si-lsk., 1, (1X21), p. 50, Pl- ii. fiS- ::■ 

 I'laliisa ptalcssouics, Cloqm-t, 182(1, Diet. Sci. Xal,, xli 

 ( illmrui philtis'iiiics, Rcinhardt, 1838, Afhandl. K. I). 

 1850 (?), in Fabvrp, Voy. Scand. Lapon., Zonl., p. 



skf \id. ,Sel>k. 



Plates 



iSjq, Rep. Fish. -Ma 



St^ 



i PP- 



1867, Hi5l. Fish. M.iss.irh. 



Medd. 



Arad. .\al. Sri. Pliil.id.. Suppl. (C.it I ish, i;, Cn.ist N. 



iHfi', Ca 



ntitla, Store 

 p. 197. pl. XXX. hi 



Dr(pan':psfthi />/a/,ss"i 

 Aiiicr.), p. 50 ; .!< 



Hippnglnssoidfs dentiilus. I, ill, i.M.i, timi. al.. p. 5'> ; (Uiiither, 



Htpponhssindcs phdes'.auU-^. Gill, 1864, Fror.. Acad. Nat. Sci. Philad., xvi, p. 217; '.., 

 Froc. U.S. Xat. Mus.,iii, (18S0), p. 471 ; Jordan and Gilbert, 1883, Bull. f.S. Xat. 

 p. 82fi ; Goodc, 1884, Nat. Hist. Aqiiat. .-^nini. (Fisheries Fish. Indust. U.S., i), p. i 

 Jordan and Goss, 18.89, Ri-p. U.S. Com. Fish., xiv, (1886), p. 240, pl. ii, fig. 4 ; Goode 

 1895, Ocean. Ichth., p. 43.S, pl. cvii. fij». 367; Jordan and Evermann, 189S, Bull. 

 .\his., xlvii (3), p. 2614, pi. ccclxxii, (if;. 919 ; Huntsman, 1918, Bull. Biol. Board C; 

 I, /IKS- ; Huntsman, 1922, Contr. Caliad. Biol., (1921), Xo. iii, p. 21 ; Bigelow a 

 1. 121, Hull, r S. Bur. Fish., xl(i), (1924I, p. 482, tigs. 245-248 ; Nichols and Brc 

 ZooloKH.i N.\'., IX, p. 175, hg. ; I'lrtsdimann, 1932, Medd. Gronland, xcii (3I, p. ,S7. 



)-. pl. Iv ; 

 ;ind Ueaii, 

 U.S. Nat. 



