Jordaji and Ever maun. — Fishes of North America. 1559 



1971. EUPOMACEXTRL'S PLAMFRONS (Cuvier & Valenciennes). 

 (Petite Jaquette.) 

 Depth 2^ in total length with caudal. D. XII, 15 ; A. II, 13 ; scales 3-29-10. 

 Protile from snout to nape nearly straight, interorbital space flat; preor- 

 bital ring serrate posteriorly only ; caudal peduncle very short; dorsal and 

 anal lobes pointed. Brown with a black spot at base of pectoral on axil 

 and extending on fin; a black spot liehind dorsal on caudal peduncle; 

 many pale spots on side of anal. (Giinther; Cuvier & Yah'ncienues.) 

 Length 3 inches. West Indies; recorded from Jamaica and Martini(|ue; 

 little esteemed and abandoned to the negroes. Not seen V)y us. {planus, 

 plane; frotia, forehead.; 



Po7nacentn(8 planifrom, Cuvier & Valenciennes, Hist. Nat. Poiss., v, 431, 1830, Mar- 

 tinique (Coll. M. Plee) ; Gunthek, Cat., iv, 33, 1862. 



623. NEXILARIUS, Gilbert. 



Nexilarius, Gilbert, in Jordan >.t Evermann, Cheok-Li.st, 512, 1896 {concolor) ; misprinted 

 Nexilaris. 



This genus is very close to Abudefduf and especially to the section called 

 Eiischistodvs, from which it (lifters in having the broad suborbitals entirely 

 adnate to the cheeks, as in Leindozijgus, and covered by scales so that the 

 outlines can not be traced without dissection. One species known, {nex- 

 U\s, bound down.) 



19711. NEXILARIUS CONCOLOR (Gilli. 



HeadSi; depth If. D. XIII, 12; A. II, 10; scjUcs 4-26-10, 21 pores. 

 Body broadly ovate, the anterior proiilc forming a steep and nearly even 

 curve from the snout to front of dorsal; iiiterorliital space convex, rather 

 l)roader than eye, which is 3^ in head; snout 3 in head; preorbital broad, 

 not notched, its least depth at angle of mouth 5 in head, its greatest A'er- 

 tical depth 5^; 8ubor))ital broad, completely covered by scales, its edge 

 not free and to be ascertained only Ity dissection; lower lip with a l)road 

 free margin without median frenum; teeth rather broad, deeply notched; 

 preoperclc entire, with a shallow concavity behind; dorsal spines rather 

 low, the fifth highest, 2 in head ; soft dorsal and anal moderately elevated ; 

 upper lobe of caudal longest and liroadest; pectorals as long as head; 

 ventrals a little longer, filamentous at tip. Color dusky olive, nearly 

 plain, with traces of 6 1)road dusky cross shades corresponding to those 

 in Abudefduf devllvifrons but much fainter; some faint olive streaks abmg 

 the rows of scales; fins all largely dusky; a black spot, l)roade8t above, 

 growing narrow l)elow, on upper half of base of pectoral; breast some- 

 times with dark streaks. Length 8 inches. Pacific coast of Central 

 America, rather common. Here described from specimens taken by Dr. 

 Gilbert at Panama. The species strongly resembles Abudefduf deelinfrons, 

 but has the preorbital decidedly Itroader, the dorsal spines lower, the 

 black cross bands much fainter, the interorbital space more convex, the 

 anterior profile more evenly rounded, the snout shorter and lower, besides 

 the generic character of the adnate preorbital. {concolor, uniformly 

 colored.) 



Eugchistodus concolor, Gill, Proc. Ac. Nat. Sci. Pliila. 1862, 145, Panama. (Coll. Capt. 

 J. M. Dow.) 



