1320 Bulletin 4.7, United States National Museum. 



lateral line anteriorly not specially enlarged; all specimens examined 

 with 3 or 4 black lateral stripes, one from eye to near base of caudal, 

 where it ceases abruptly, giving place to a round caudal spot as in the 

 young of A. surinamensis, also a stripe from scapular scale to last dorsal 

 ray forming 2 spots on back of caudal peduncle (this stripe wanting in 

 A. surinamensis} ; above this 1 or 2 other stripes parallel with it; oper- 

 eular membrane black. Anterior profile considerably steeper than in A. 

 surinamensis. In all other respects, in specimens of the same age, this 

 species seems to agree with A. surinamensis. Coast of Brazil. Specimens 

 examined by us from Rio Grande do Norte, Bahia,* and Ceara. Also found 

 in Cuba if Anisotremus trilineatus is really the same species, (bicolor, two- 

 colored. ) 



Pristipoma bicolor, CASTELNAU, ADim. Nouv. ou Rares Amer. du Sud, 8, pi. 2, fig. 2, 1850, 



Bahia. 



?Pristipoma trilineatumj POEY, Memorias, n, 343, 1861, Havana. 



Pristipoma brasiliense, STEINDACHNER, Sitzungsb. k. Akad. Wiss. Wien.1863, 1013, Bahia. 

 Anisotremus bicolor, JOKDAN, Proc. TJ. S. Kat. Mus. 1890, 319; JORDAN & FESLER, L c., 485. 



1687. ANISOTREMTJS SCAPTJLARIS (Tschudi). 



Head 3; depth 2; eye 4; snout 4. D. XI, 14; A. Ill, 13; scales 9 or 

 10-51-10; preorbital equal pupil; maxillary 3; pectoral l^ ; gill rakers 

 10 -|- 13. Body ovate, the back elevated, the profile from tip of the short, 

 blunt snout to last dorsal ray evenly rounded; lower profile straighter, 

 angulated at end of base of anal ; mouth moderate ; teeth in broad bands, 

 the outer in each jaw longer, close set, slender, and sharp; preopercle 

 rather finely, but not sharply, serrate. Scales rather small, more than 9 

 in a vertical series between first dorsal spine and lateral line. Dorsal fin 

 divided almost to base, the tenth spine no longer than first; second anal 

 spine stronger and a little longer than third, lower than soft rays ; caudal 

 forked. Anterior part of body without jet-black vertical bars; axil jet- 

 black, the spot encroaching on base of pectoral; a round, black spot on 

 base of last rays of dorsal and anal; body dark gray, with obscure, darker 



* A specimen from Babia shows the following characters : Pectorals sharp, 1^ in head, 

 not quite to anal; second anal spine very strong, 2^ in head, equal to longest dorsal spine. 

 Eye large, 3 in head; snout short, rather blunt; profile steep. Do'rsal XII, 16; anal III, 

 8.' Scales 53. Gray; a black median line on back; 5 equidistant black stripes as wide 

 as interspaces on side, straight and horizontal, the first ending under ninth dorsal spine, 

 the second under middle of soft dorsal, the third running from upper edge of gill opening 

 to last dorsal ray, with 2 black spots behind it on back of tail, the fourth on axis of 

 body, ceasing on caudal peduncle, with a round black spot behind it at base of caudal as 

 large as pupil; fifth stripe very obscure, with a trace of a sixth one; a black blotch at 

 base of anal, not on the fin : a large black blotch nearly as large as pupil on opercular 

 flap; 2 silvery horizontal stripes on the dusky shade of cheeks; fins plain grayish, the 

 ventrals black, the anal dusky, axil dusky. Scales above lateral line in series not par 

 allel with it ; 6 or 7 scales in a vertical series below lateral line. 



t Anisotremus trilineatus (Poey). Head 3| in total with caudal; depth 3J; D. XII, 18; 

 A. Ill, 8. Eye in second third of head. Preopercle well serrate; maxillary reaching 

 front of pupil. Teeth in villiform bands, the outer enlarged above; snout scaleless. 

 Dorsal notched, the membrane of spinous part long; second anal spine longer than third, 

 not robust. Color golden gray, with somewhat oblique streaks along the rows of scales ; 

 2 dark bands along body; 1 from snout through eye to a dark spot at base of caudal; 

 1 on the back to tip of snout, not joined to its fellow; a narrower dark streak along 

 lateral line, vanishing behind, extending forward to the eye; fins pale yellow; sides of 

 head with silvery reflections. Length .70 m. Havana (Poey) ; not seen by us. Probably 

 young of Anisotremus bicolor. (trilineatus, three-lined.) 



