I3i FLATFISHKS (HKTKKOSOMATA) 



Close to the preceding species, but deptli of body twice or less than twice in the 

 length. Interorbital width (j) nearly equal to diameter of eye. Gill-rakers a little 

 shorter and stouter. 7 on lower part of anterior arch. 46 to 48 scales in lateral line ; 

 supplementary' scales rather less numerous. Dorsal (74) 7q-8i (82). Anal fio-63 (65). 

 Length of pectoral of ocular side equal to or less than that of head, upper ray some- 

 times a little prolonged. 



Typi;. — United States National Museum. No. 02800. 



Distribution. — Coasts of Florida and Louisiana. 



Specimens Examined : 



I (o'. M-- mm.). Tvpe ..f .S. Iniishxi. Off Breton Is.. I.i.uisi.ma. CiriM.. Hiol, L.ili. 



1 (J. sS-icm itun.). Kev West, Florid.i. Amer. Mils. \at. Hi'.t. 



I (;, Momm.). Dry TortUKas. Florid, 1. I.onsley. 



3 SYACII'M MICRl'Rl'M. Ranzani. 



SvaciuiH munaum. R.mz,mi, 1S40. De Xov. I'lsr.. (2) X. Comm. Ac. Sri. Inst. Bonon., vl, p. iS. 



pi. V ; Jordan and (ioss. 18S9, Rep. U.S. Com. Fish., xiv, (1886), p. 269 ; Jordan and Hverni.inn, 



i8i|8, Bull. U.S. Xal. .Mus., .\Ivii (3). p. 2672 ; Evermann and Marsh, 1902, Bull. U.S. Com. 



Fisli., XX, (1900). p. 324 ; Ribeiro. 191s, Arch. Mus. nac. Rio de I., xvii. Heterosomata, p. o ; 



Kilu-lro. 1917, Arch. Mus. nac. Rio de j., xxi, p. K.i ; Meek and Hildebrand, 192S, Field Mus. 



I'ul). ( lurago, Zool. Ser., xv, No. 249, p. 9S1. 

 Hi/>/>.i;;n.s.si(S nccllatus, Poev, KS56-58, Mem. hist. nat. Cuba, li, p. 114, 

 Hnnirlumibus aramaca. Giinthcr, 1S62, Cat. Fish., iv, p. 422 ; Carman, i.Soh, Bull. Lab. Xal, S< 1. 



Umv. Iowa, p. 91- 

 Hcmirhnmhus guineensis, (Blceker) Giinther, 1862, Cat. Fish., iv, p. 423 : Bleeker, 1863, Nat. Verb. 



Holl. Maatsch. Wet.. (2) xviii, p. 25, pi. iii ; Steindachner, i8,S2. Denkschr. Akad. Wiss. Wien, 



xlv, p. 13 ; Steindachner, 1894, Notes Leyden Mus.. xvi. p. .si ; PelleRrin, 1905, Act. Soc. Linn. 



Bordeaux, (6) x [Ix], p. 31, tig.; Pellegrin, 1914, .-Vnii. Inst, ocranogr. Paris, vi (4), p. 73: 



.Metzelaar, 1919, Trop. Atlant. Vissch., p. 277 ; Chabanau.l .md Monod, 1927, Bull. Com. F.tud. 



Hist. Sci. Afriq. Occ. Fr., (1926), p. 280. 

 Hcmuhombui accllaliis, Poey, iSfiS, Rcpertorio Cuba, 11, p. 407 ; Poey, 1875, Enuui. Plsc. Cubcns., 



p. i.lS. 

 CUharuhthys ncdlalus, Jordan and Gilbert, 1S83. Bull. U.S. Xat. Mus,, xvi, p. 964. 

 Citharuhthys athalion, Jordan. 1887, Proc. U.S. X.il. Mus,, ix, (1SS6I, p. S2, 

 Hemirhnmbits iilhalwn. Jordan, 1887, torn. cil.. p, i.n:, 

 Syacium sumentsts. Fowler, 1919, Proc, U.S. X.it .Mu, , Ivi, p. 26S. 



Metzelaar, 1919, Frnp, .\tl.ml. \ i5S( h., p. 151. 

 ;93o, Ann. Xat. Mus. Wi.n, p. -,7. 



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

 of head with a shiallow notch in front of eyes. Snout as long as or shorter than eye, 

 diameter of which is 4 to nearly 5 in length of head ; interorbital width J to i diameter 

 of eye (mature J), or much narrower (2), reduced to a narrow bony ridge in the young ; 

 lower eye a little in advance of upper or anterior margins of eyes about level. Maxil- 

 lary extending to below middle of eye or not quite as far, length 2| to 2'i in that of 

 head ; lower jaw 2 to 2J in head. Teeth as in S. papillosum. 7 or 8 giU-rakers on 

 lower part of anterior arch. 54 to 65 scales in lateral line ; supplementary scales 

 present, less numerous than in S. papillosum. Dorsal 85-91. .\nal 68-73. i'ectoral 

 of ocular side with 1 1 rays, the upper rays prolonged and filamentous (at least in 

 the male). Caudal double-truncate. Browni.sh, with or without irregular darker 

 markings ; generally numerous spots and rings of pale grey and blackish, some of 

 the dark rings with a black central spot (at least in American examples) : sometimes 

 a diffuse dark blotch on lateral line above pectoral fin and another near base of caudal 

 peduncle ; median fins spotted and speckled with dark brown ; pectoral with 

 irregular dusky cross-bars. 



Tvpi; — Institute di Zoologia, L'niversita di Bologna, 



Distribution. — Atlantic coast of tropical America from hlorida to Kio de Janeiro . 

 tropical West Africa. 



