2204 Bulletin 47, United States National Museum. 



2526. EROTELIS SMARAGDUS (Cuvier & Valenciennes). 



(Esmeralda Negba; Esmeralda de Mae.) 



Head \\ to 5i; depth 8 to 12. D. VI-I, 10; A. I, 9; V. I, 5; scales 100. 

 Body very long and slender, compressed behind, the form much as in 

 (lohiiis oceamcus. Head depressed, flattish above, the eyes mostly supe- 

 rior, not ^ the Avidth of the interorbital area, which has a knob near its 

 middle. Month very oblique, the lower jaw much projecting, the maxil- 

 lary about reaching front of eyes; teeth rather small, in bands. Fins 

 rather high ; dorsal spines slender, lower than the highest soft rays, which 

 are 11^ in head; caudal lanceolate, ^ longer than head; veutrals mod- 

 erate, 2 in head. Scales very small, cycloid. Color very dark green, almost 

 black; the tins mostly bluish, the dorsal with brown lines; some dark 

 markings about eye and on base of pectoral above. Length 8 inches. 

 Coral shores among green algic; known from Key West and Cuba; not 

 common ; not entering rivers. Here described from Key West specimens. 

 {djuapaydoi;, emerald.) 



Eleotris smaragdus, Cuvikr & Valenciennes, Hist. Kat. Poise., xii, 231, 1867, Cuba; Jor- 

 dan & Gilbert, Proc. U. S. Nat. Mus. 1884, 143. 

 Erotelis valenciennesi, Poey, Memorias, ii, 273, 1861, Cuba. 

 Erotelis smaragdus, Jordan &, Eigenmann, I. c, 484. 



807. GYMNELEOTRIS, Bleeker. 



Gymneleotris, Bleeker, Esquisse d'un Syst. Nat. des Gobioid., 304, 1874 (seminuda) . 



Body scaled only posteriorly, the anterior half and the head naked. Ven- 

 trals separate, I, 5. Vomer without teeth. Isthmus broad; skull without 

 crests. Lower jaw with 4 large recurved teeth. Otherwise essentially as 

 in Eleotris, the preopercle probably without spine. {yv/xv6(i, naked; 

 Eleotris.) 



2527. GYMNELEOTRIS SEMINUDUS (Giinther). 



Head 3^. D. VII-11; A. 9. Head depressed, broader than high, flat 

 above. Snout rather obtuse, longer than eye, lower jaw somewhat promi- 

 nent; cleft of mouth extending to below anterior margin of orbit. Teeth 

 in upper jaw in a narrow l)and, the lower having 4 somewhat larger and 

 recurved teeth in front, appearing to form a single series ; palate tooth- 

 less. None of the tin rays prolonged; pectoral not quite extemling to 

 origin of second dorsal; ventral much shorter than pectoral, its inner ray 

 the longest, the others gradually decreasing in length outward; caudal 

 fin rounded. Head and trunk naked; tail covered with small scales. 

 Brown, with numerous well-defined white cross stripes on head as well as 

 on body; vertical fins black. Panama. (Giinther); known from the type 

 only, a young example, If inches long; not seen by us. {scminudus, half- 

 naked.) 



Eleotris seminuda, Gunther, Proc. Zool. Soc. London 1864, 24, pi. 4, figs. 2, 2a, Panama; 



GiJNTHER, Fish. Centi-. Anier., 441, 1869. 

 Gymneleotris seminuda, Jordan &, Eigenmann, I. c, 484. 



