PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 449 



VoB. VII, ]¥o. 99. Wa!<i]iiiif^toii, 1>. €. Sept. Sr, 1884. 



LutJ<t)im auhrieii, Desmarost, Prc^u). Dec. Iclitli., 17, 1823, pi. 2 (Cuba) ; Vaillaut 

 & Bocourt, Miss. Sci. au Mex., 1881 (?) 1'26 (Jamaica; Ilayti ; Cuba; 

 Montevideo). 



Mesoprion uninotatus, Cuv. & Val., ii, 440, 1828 (San Doniin<;(); Martinique) 

 Agassiz, Spix, Pise. Brasil, 1820, pi. Gii ; Castelnau, Anini. nouv. on rares 

 Amdr. Sud, 4j Guicheuot, Kauiou de la Sagra, Cuba, 21 ; Giintlier, i, 202, 

 1859 (Cuba ; Puerto Cabello ; San Douiiugo ; Jamaica; Baliia). 



Littjanus u»hiotofus,Foej, Synopsis, 1868, 294; Cope, Trans. Am. Philos. Soc, 

 1871, 470 (St. Martin's). 



? Mesoprion amhi(juus, Poey, Memorias Cuba, ii, 1.52, Ib'CJO, tab. 12, f . 4 «fc tab. 

 1.3, f. 18 (Cuba) ; Poey, Synopsis, 295. 



? Luijanns amhUjuus, Poej', Euumeratio, 1875, :?0. 



Habitat. — Pensacola to Aspinwall aud Brazil. 



Head, 2f (3f ) ; depth, 2f (3|). I). X, 12 ; A. Ill, 8. Scales, (7) 8- 

 60-15 (50 pores). Leiigtli of a specimen from Key West, 8 iiicbes. 



Body oblong, compressed, tbe back moderately elevated, profile 

 almost straight from snout to nape. Snout ratber pointed, 3 in bead. 

 Eye moderate, Sin bead. Interorbital space gently convex, 5f in bead. 

 Occipital keel little prominent. Preorbital ratber broad, 42 in bead. 

 Maxillary reaching front of orbit, 2f in bead, Upi)er jaw witb a nar- 

 row band of villiforjii teetb, outside of wbicb is a single series of en- 

 larged teeth ; 4 ratber small canines in front, two of them larger. 

 Lower jaw witb villiform band in front only, tbe single vow of larger 

 teetb nearly equal in size, none of them canines. Tongue with a single 

 oval patch, its length more than twice its width. Vomer with a A or 

 /^ shaped patch of teetb, without backwai-d prolongation on median 

 line, or witb onb' a very slight one. Gill-rakers rather long, their 

 length slightly more than half diameter of eye, about 9 on lower part 

 of arch, and no rudiments before them. Preoi)ercle with its posterior 

 margin slanting downward and forward, tbe emargination broad and 

 moderately deep. Preoi)ercle ratber finely serrate above, with coarser 

 teeth at the angle. 



Scales ratber small, tbe rows almost horizontal belowtbe lateral line, 

 above somewhat undulate, running ui)ward and backward ; tubes of 

 lateral line simple; 7 rows of scales on the cheek, 1 row on the inter- 

 opercle, 1 on the subopercle, and C on the opercle. Temporal region 

 with a broad band of scales, arranged in several series. Base of soft 

 dorsal aud anal scaly. Dorsal spines rather weak aud slender, the out- 

 line of tbe fin gently convex; tbe fourth spine longest, 2.^ in bead; the 

 tenth spine 3? in bead. Soft dorsal short, its margin souiewbat angut 

 lated, the eighth ray longest, twice tbe length of last ray and one and 

 a half first, 2| in head. Caudal moderately forked, tbe uiti)er lobe tbe 

 longest, 1.} length middle rays, which are two in head. Anal ratber 

 lligli, roiiixlod, in oiitline, itn middle n\ys lonseHt, 1^ loiiatli-of lnsj;. ruy, 

 j^rou, Nat, iMu8, 84- -i^H 



