2698 Bulletin 4.7, United States National Museum. 



coloration is subject to very great variations as great as in AcJiirnsfasci- 

 atuis. In some of these the caudal is dark and immaculate, in others pale 

 and usually profusely spotted. In some the ground color is nearly plain 

 blackish, in others it is pale, usually with narrow dark cross bands, but 

 sometimes closely spotted everywhere. The specimens examined by us 

 are from Pensacola and Egmont Key (braclrialis}, Key West (comifer), 

 Cienfuegos (Cuba, Poey), Coary, Teffy, Tapajos, Porto Alegre, Pernam- 

 buco, Cannarivieras, Manacapuru, Porto do Moz, Rio Grande do Sul, Rio 

 Janeiro, San Matheo, Rosario, Itabapuana, Obidos, Xingu, Gurupa, 

 Jutaby, Curacao, Para, Bahia, Santarem, lea, Fonteboa, San Paolo, Rio 

 Trompetas, Sambaia, Manes, Javary, and Tabatinga. The species would 

 appear to be one of the commonest in Brazil. (Uneatus, striped.) 



a. Var. lineatus. 



Passer lineit transverris notatus, SLOANE, Jamaica, 2, 77, pi. 246, fig. 2, 1725, Jamaica. 

 Fleuronectesfuscussubrotundusglaber, BEOWNE, Jamaica, 445, 1756, Jamaica. 

 Pleuronectes lineatus, LlNNJEUS, Syst. Nat., Ed. x, 268, 1758, Jamaica; based on BROWNE and 



SLOANE ; not of Ed. xn, which is Achirus fasciatus. 

 Monoehir maculipinnis, AGASSIZ, Spix, Pise. Brasil., 88, pi. 49, 1829, Brazil ; POEY, Synopsis, 



409, 1868. 



Monoehir lineatus, QUOY & GAIMARD, Voy. TJranie, Zool., 238, 1824. 

 Achirus lineatus, D'ORBIONY, Voyage Amer. Merid., Poiss., pi. 16, fig. 2, 1847; JORDAN & 



Goss, Review Flounders and Soles, 312, 1889. 



Solea maculipinnis, GUNTHER, Cat., IV, 473, 1862 ; KNER, Novara Fische, in, 289, 1866. 

 Achirus maculipinnis, JORDAN, Proc. TJ. S. Nat. Mus. 1886, 602. 



b. Var. brachialis. 



Baiostoma brachialis, BEAN, Proc. TJ. S. Nat. Mus. 1882, 413, Appalachicola Bay and South 



Florida. (Types, Nos. 26605 and 30463. Coll. Silas Stearns.) 

 Bceostoma braehiale, JORDAN &, GILBERT, Synopsis, 965, 1883. 

 Achirus brachialis, JORDAN, Proc. U. S. Nat. Mus. 1884, 149. 



c. Var. comifer. 



Achirus comifer, JORDAN &. GILBERT, Proc. TJ. S. Nat. Mus. 1884, 31, Key West. (Coll. 

 Dr. Jordan. ) 



3069. ACHIRTJS MAZATLANUS (Steindachner). 

 (MEXICAN SOLE ; LENGUADO DE Rio; TEIPALCATE.) 



Head 3 in body ; depth 1. D. 56; A. 42; scales 70; eye 7 in head ; dor- 

 sal and anal rays 3| in depth of body ; caudal 3. Body broad, oval ; eyes 

 small, the upper in advance of the lower; interorbital about the diame- 

 ter of eye; nostril in a tube, placed just above middle of mouth; pectoral 

 developed on eyed side only, with about 4 rays ; origin of dorsal on tip of 

 snout; greatest height of dorsal and anal behind their middle; scales of 

 right side with numerous black hair-like appendages. Color brownish, 

 with 8 or 9 narrow vertical black bars ; fins dark, without distinct mark- 

 ings. West coast of Mexico, entering all streams; common and variable. 

 Many specimens from Mazatlan and Rio Presidio examined by us, as also 

 a specimen from Chiapas. (Name from Mazatlan,* the river of the deer.) 



* "With eternal sun above thee, 



'T is not strange the tall deer loved thee, 

 That he gave his name, Mazatl, 

 To thy river, Mazatlan ! " 



