Jordan and Evcrmann. Fishes of North America. 1415 



caudal fin subtruncate ; pectoral fins moderate, 2 in bead ; caudal weakly 

 double truncate. Coast of Brazil and Guiana, probably not rare. Here 

 described from specimens from Rio Janeiro, Porto Alegre, Bahia, and 

 Santos. (A.e2 o$, smooth;* dp xo$, anus.) 



Otolithus leiarchua, CUVIER & VALENCIENNES, Hist. Nat. Poiss., v, 78, 1830, Brazil; Cayenne; 



(JuNTHER, Cat., n, 308, I860; JORDAN, Proc. TJ. S. Nat. Mus. 1886, 540; note on type of 



CUVIER & VALENCIENNES. 

 Ceatreus leiarchus, JORDAN & EIGENMANN, I. c., 371, 1889. 



1792. CYXOSCION YlliESCENS (Cuvier & Valenciennes). 



Head 3; depth 5 to 5^. D. X-I, 28; A. II, 8; scales 80 (pores), 125 to 

 130 cross series. Body long and low, spindle-shaped, the head slender, 

 subtruncate, depressed above, formed much as in Rachycentron canadum; 

 profile from snout to dorsal weakly concaye; snout long, rather pointed, 

 4 in head; mouth large, little oblique, the lower jaw strongly projecting 

 the maxillary 2jj- in head; canine teeth 2, short and thick; lateral teeth 

 moderate, close-set; eye small, 8| in head; interorbital space flattish, 4f 

 in head; gill rakers short and thickish, 8 below angle of arch, the longest 

 | eye; scales on head very small and silvery; soft dorsal wholly naked, 

 a few scales on anal; caudal S-shaped, the middle rays longest; pectoral 

 rather long, If in head. Color plain greenish, silvery below; gill cavity 

 dusky within. Coasts of Guiana and Brazil, rather scarce. Here described 

 from a specimen 18 inches long from Victoria, Brazil. (virescenSj growing 

 green.) 



Otolithus virescens, CUVIER & VALENCIENNES, Hist. Nat. Poiss., v, 72, 1830, Surinam. 

 Otolithus microps, STEINDACHNER, Neue Fisch-Ai'ten k. k. Museen "Wien, Stuttgart und 

 Warschau, 38, pi. 8, fig. 2, 1879, Porto Alegre, Brazil. 



1793. CYXOSC10X MICROLEPIDOTUS (Cuvier & Valenciennes). 



Head 3? ; depth 4; snout 4 in head; eye large, 4; interorbital space 

 5| in head. D. XI-I, 23; A, II, 9; scales 70 (pores), 155 to 160 in a longi- 

 tudinal series. Body moderately elongate, covered with very small scales ; 

 soft dorsal and anal closely scaly throughout; maxillary extending be- 

 yond eye; lower jaw projecting; teeth moderate; canines rather strong; 

 lateral teeth of lower jaw not canine-like ; gill rakers not described, prob- 

 ably as in riresccns. Dorsal spine slender, the longest 2-f in head; pecto- 

 ral slightly longer than ventral, which is slightly more than \ head; 

 caudal fin S-shaped ; lateral line becoming straight above anal. Colora- 

 tion plain greenish, silvery below. Coast of Brazil and Guiana, not com- 

 mon. (Steindachner.) (/uixpog, small; XETtidcoros, scaled.) 



Otolithus microlepidotus, CUVIER & VALENCIENNES, Hist. Nat. Poiss., v, 79, 1830, Suri- 

 nam; GUNTHER, Cat., n, 311; STEINDACHNER, Neue und Seltene Fische k. k. Zool. 

 Mus. Wien, 39, 1879. 



Cestreus microlepidotus, JORDAN & EIGENMANN, l.-c., 371. 



*In the dried skin of the type, a young example in the museum at Paris, the absence of 

 the anal spine ("leiarchus") is due to its being covered by varnish. 



