13° 



FLATFISHES (HETEROSOMATA) 



2. Depth twice or less than twice in length ; 46 to 48 scales in lateral 



line ; dorsal 74--S2, anal 60-65 ..... 2. gunteri. 



v.. Interorbital width J to i eye (mature ^), or much narrower (2) : 54 to 65 



scales in lateral line . . . . . . 3. ynicrnrum 



U. .\nterior teeth of upper jaw more or less enlarged, but not forming distinct 



canines [Pacific species] ........ 4. ovale. 



The three .Atlantic coast species of this genus are not easily differentiated. .A 

 further revision, based on adequate material, is required. 



I. SYACIUM I^APILLOSUM (Linnaeus). 



PUitronectcs papiUo: 

 Plcuronectc: 



. p. 341. 



s, LinniEus, :758, Syst. N'at.. ed. x, p. 2- 

 Walbaum, 179.!, .Artedi Ichth.. (3I, ed. 2 



Nat., 



1766, ed. .xii I 

 121 : Cuvier. 



Platessa papulosa, Cloquet, 1S26, Diet 



Y Rhombus soUtsfonms, (Cuvier) Agassiz, 1831, in Spi.v, Pise. Brasil., p. .S6, pi. xlvii. 



Hippozloss'is intermedius, Ranzani, 1S40, De Mov. Pise., (2) [N. Coinm. Ac. Sci. Inst 



p. 14, pi. iv. 

 Hemirhomhus (?) soUaforims, Gunther, 1862, Cat. Fish., iv, p. 423. 

 Hcmirhombus />a;(u;us, (Bean) Jordan and Gilbert, 1883, Proc. U.S. N'at. .\Iu5., v, (i 



Goode and Bean, 1883, Proc. U.S. N'at. Mus., v, (18S2), p. 414. 

 Ctlharichthys aramaca, Jordan and Gilbert, 1883, Bull. U.S. Nat. .Mus., xvi, p. 816. 

 Citharichthys pcstulus, Jordan and Gilbert, 1883. torn, cil., p. 964 ; Goode and Bean, 



Ichth., p. 448, tig. 373. 

 Aramaca papulosa, Jordan, 1887, Proc. U.S. N'at. Mus.. ix, (i580) 



sole<ifo, 

 ^yacium papUlosu 

 Everniann. if 



Jordan, 1887, torn. cit.. p. 60 

 Jordan and Goss. 1889. Rep. U.S. Com. Fish., xiv, (1886), p. 269 ; 

 , Bull. U.S. N'at. .Mus.. xlvii (3), p. 2671, pi. ccclxxxiii, fig. 941 ; R 

 . Mus. nac. Rio de J., xvii, Heterosom.ita, p. q ; Ribeiro, 191S, Arch. Mus. na 

 p. 160; .Meek and Hildebrand, 1928, Field Mus. Pub. Chicago, Zool. Sen, xv 



Chabanaud, 1930, Bull, Mus. Hist. nat. Pans. (2) 11, p. 628. 

 >nicrurum, Gilbert. 1900, Proc. Washington .\cad. Sci., li, p. 182. 



182), p. 30 

 [895, Oce; 



:. Rio de . 

 No. 249, 



Fic. 84. — Syaci 



Depth of body 2i to 2| in the length, length of head 35 to nearly 4. Upper profile 

 of head with a shallow notch in front of eyes. Snout about as long as eye, diameter 

 of which is 4^ to 5 in length of head : interorbital width greater than diameter of eye 

 (mature 3).' about f eye (2) ; lower eye distinctly in advance of upper, which is well 



