934 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY — IV. 



Page 581. The presence of one or two anal spines in Gynoscion has 

 no imi)ortance. Probably a rudiment of the first spine will be found 

 in all the species. Gynoscion regale and Gynoscion nothum are distin 

 guished from our other species by having the second dorsal and anal 

 covered with small scales ; these fius being naked in the other species. 

 OtoUthus drummondi Eich. (Fauna Bor.-Amer. iii, 183G, 70; Giiuther, ii, 

 307), from New Orleans, is identical with Gynoscion maculatum. This 

 species has the caudal unevenly truncate, not "lunate", as stated in the 

 text. 



Page 583. After Gerres plumieri add : 

 919 (6). O. olisthoistoina. Goode & Beau. — Irish Pomyano. 



Color silvery olivaceous ; scales with faint silvery streaks but no dark 

 ones; fins mostly pale or yellowish, the ventrals somewhat dusky. 

 Body rhomboid, short and deep, the back elevated, the anterior profile 

 straight and very steep ; mouth rather large; teeth slender, brush-like. 

 Preorbital entire ; preopercle and interopercle serrate. Groove on top 

 of head, for reception of j^remaxillaries, broad, rounded behind, with a 

 median linear depression, its surface comj^letely covered with small 

 <leciduous scales, which extend forward to just behind nostrils. Eye 

 moderare. Dorsal sjiines high and strong, the second, nearly or quite 

 as long as head. Second anal spine very strong, half or more length of 

 head. Caudal lobes long and slender, a little longer than head. Pec- 

 toral long, nearly as long as head, reaching front of anal. Head 3; 

 depth 2. D. IX, 10; A. Ill, 8; scales 5-37-9. L. 12 inches. West In- 

 dies, north to Southern Florida. 



(Goode & Beau, Proc. U. S. Nat. Mus. 1882, 423: Gei-res rJiombeiis Poey, Syn. Pise. 

 Cub. 1858, 32: Mojarra rhomhea Poey, Anal. Soc. Esp. Hist. Nat. x, 327, 1881, uot 

 Gerres rhomheus C. & V. vi, 459; a species of similar form, but with two aual spiues 

 uuly, aud. the premaxillary groove eutirely naked. The genus MojarraAn Poiy's 

 arraugementjis distinguished from Go'res by the entire preorbital, and from ^^ Diap- 

 leriis" by the serrated i)reopercle. ) 



Page 584. Instead of Gerres argenteus read : 



920. O. giBla C. & v. 



This species is distinguished from the other American species (ex- 

 cept Gerres liomonymus) by the jjresence of a transverse band of scales 

 across the anterior part of the groove of the premaxillaries on the top 

 of the head ; behind these scales the naked part of the groove apx)ears 

 as a pit when the jaw is protruded. Third dorsal si>ine f as long as 

 head, twice as long as second anal spine. Head 3^; depth 2f. D. 

 IX, 10; A. Ill, 7; scales 4-45-9. Tip of dorsal dusky. West Indies, 

 north to Cape Cod. 



