2204 Bulletin 47, United States National Museum. 



2526. EEOTELIS SMAKAGDTJS (Cuvier & Valenciennes). 



(ESMEBALDA NEGBA; ESMEBALDA DE MAB.) 



Head 4 to 5f ; 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 

 GoUus oceanicus. Head depressed, flattish above, the eyes mostly supe- 

 rior, not | the width of the interorbital area, which has a knob near its 

 middle. Mouth 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 1 in head; caudal lanceolate. longer than head; ventrals mod- 

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

 black; the fins 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 algse; known from Key West and Cuba; not 

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

 (tf/uapaydog, emerald.) 



Eleotris smaragdus, CUVIEB & VALENCIENNES, Hist. Nat. Poise., xn, 231, 1887, Cuba; JOB- 

 DAN & GILBERT, Proc. U. S. Nat. Mus. 1884, 143. 

 Erotelis valeneiennesi, POET, Memorias, n, 273, 1861, Cuba. 

 Erotelis smaragdus, JORDAN & EIGENMANN, I. c., 484. 



807. GYMNELEOTRIS, Bleeker. 



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



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

 trals separate, 1, 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, (yvjivds, 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 band, the lower having 4 somewhat larger and 

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

 less. None of the fin rays prolonged; pectoral not quite extending 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; 



GiiNTHER, Fish. Centr. Amer., 441, 1869. 

 Gymneleotris seminuda, JORDAN & EIGENMANN, I. c., 484. 



