Jordan and Evcrmann. Fishes of North America. 1539 



ish ; dorsal spines low, the longest a little shorter than snout ; soft dorsal 

 and anal elevated, pointed, their tips reaching a little past base of caudal, 

 the longest ray about 1^ in head; bases of soft dorsal and anal somewhat 

 scaly ; caudal subtruncate ; ventrals reaching beyond pectorals, nearly to 

 front of anal, H in head; pectorals 1; origin of ventral spine under pec- 

 toral base. Color olive, the centers of many scales on sides of body and 

 head paler in some specimens ( 9 ?) and darker in others ( $ ?); sides with 

 traces of about 8 obscure dark cross bars, which are about as wide as the 

 interspaces; a faint pale streak from below eye to maxillary; an obscure 

 black spot, most distinct in young and rather larger than eye, on lateral 

 line and below eleventh and twelfth dorsal spines; a similar spot at base 

 of caudal, just above lateral line; fins olivaceous, the dorsals, caudal, and 

 anal with roundish spots of dark olive; lower fins dusky. Adult in life 

 with a black spot on each scale, these forming series; first dorsal edged 

 with dark red, the 2 black blotches and black bars obsolete. Young, 

 light olive, banded with darker, with the bars and blotches distinct; no 

 blue, yellow, or red. Length 4 to 8 inches. Rio Presidio, Mazatlan; a 

 very abundant species, the northernmost of the family on the Pacific coast ; 

 used as food. (Named for Dr. Tarletoii Hoffman Bean, now director of 

 the New York Aquarium, "in. recognition of his researches in American 

 ichthyology.") 



Heros beani, JORDAN, Proc. II. S. Nat. Mus. 1888, 332, Rio Presidio, near Mazatlan. (Types 

 Nos. 37145, and 371G5. Coll. Alphoiise Forrer) ; JORDAN, Proc. Cal. Ac. Sci. 1895, 473. 



194S. JIKIIOS TETRACAXTHITS (Cuvier & Valenciennes). 



(VlA.TACA.) 



Head 2| to 3; depth 2$. D. XV or XVI, 10 to 12; A. IV or V, 7 to 9; 

 scales 5-30 or 31-10 ; pores of lateral line 18-f-12. Head as long as high, 

 with the upper profile concave above eyes ; snout of moderate extent, its 

 length that of head ; cleft of mouth very oblique, not extending to 

 below anterior margin of eye; lower jaw prominent; preorbital rather 

 narrower than orbit, diameter of which is f length of head; interorbital 

 space wider than orbit, its naked portion flat; eye immediately below 

 upper profile, nearer to extremity of snout than to that of operculum. 

 Scales ctenoid, those on cheek small, in 7 horizontal and 10 vertical 

 series; basal portion of vertical fins scaly; snout, preorbital, and lower 

 jaw naked ; scales before dorsal varying much in size ; dorsal spines rather 

 feeble, nearly that of head ; soft dorsal and anal somewhat elevated in 

 middle, extending slightly beyond base of caudal; anal spines of moderate 

 length and strength ; caudal rounded ; pectoral rounded, equal in length 

 to distance of snout from posterior margin of preoperculum, about reach- 

 ing to tips of ventrals ; ventral pointed, origin of ventral spine under pec- 

 toral base, a little more than \ length of head, not extending to vent; 2 

 pores near angle of opercle; teeth in jaws forming a band, those in outer 

 series enlarged; lower pharyngeal somewhat longer than broad, with 

 short cardiform teeth, those in middle of its posterior \ obtusely conical 

 or molar-like. Fold of lower lip continuous in middle; 7 series of scales 



