2198 Bulletin 47, United States National Museum. 



Scicena maculata, BLOCK, Ichth., pi. 299, fig. 2, 1790, West Indies. 



Eleotris mugiloides, CUVIER & VALENCIENNES, Hist. Nat. Poiss., xn, 226, 1837, Martinique; 

 Surinam. 



Eleotris sima * CUVIER & VALENCIENNES, Hist. Nat. Poiss., xn, 232, 1837, Vera Cruz. 



Eleotris latifrons, KICHARDSON, Voy. Sulphur, Fishes, 57, pi. 35, figs. 4 and 5, 1837, locality 

 unknown, supposed to be from Pacific coast, Central America. 



? Eleotris grandisquamaj CUVIER & VALENCIENNES, Hist. Nat. Poiss., xn, 229, 1837, Amer- 

 ica ; locality unknown. 



Eleotrit somnolentus, GIBAED, Proc. Ac. Nat. Sci. Phila. 1858, 169, near mouth of Rio 

 Grande. 



Eleotris omocyaneus, POEY, Memorias, n, 269, 1860, Havana. 



Dormitator microphthalmus, GILL, Proc. Ac. Nat. Sci. Phila. 1863, 170, Panama. (Coll. 

 Capt. John M. Dow.) 



Dormitator gundlachi, POET, Synopsis, 396, 1868, Cuba. 



Dormitator lineatut, GILL, Proc. Ac. Nat, Sci. Phila. 1863, 271, Savannah. 



Dormitator maculatus, JORDAN & GILBERT, Synopsis, 632, 1883: JORDAN <fc EIGENMANN, I. 

 c., 482; EIGENMANN & EIGENMANN, Proc. Cal. Ac. Sci., 2d series, vol. 1, 1888, 52. 



803. GUAVINA, Bleeker. 



Ouavina, BLEEKEH, Esqnisse d'un Syst. Nat. Gobioid., 302, 1874 (guavina). 



This genus is allied to Eleotris, differing in having the post-temporal 

 bones little divergent, not inserted close together, the distance between 

 their insertions greater than the moderate interorbital space, or 3f in 

 length of head; top of skull little gibbous; lower pharyngeals narrower 

 than in Eleotris; preopercle without spine; scales very small, ctenoid, 

 about 110 in a longitudinal series. Vertebra? 11 + 13; teeth moderate, 

 the outer series on lower jaw enlarged. Fresh waters of the West Indies 

 and Brazil. Two species known; Gnavina brasiliensis (Sauvage) from 

 Bahia, and the following. (Guavina, the Spanish name.) 



2519. GUAVIXA GUAVINA (Cuvier & Valenciennes). 



(GUARUBACO; GUAVINA.) 



Head 3| ; depth 4| to 5. D. VI, or VII-1. 10 ; A. I, 9 or 10. Body stoutish, 

 oblong; mouth oblique; maxillary reaching opposite middle of eye, its 

 length 2| to 3^ in head. Lower jaw little projecting ; teeth in broad bands, 

 the outer ones on lower jaw enlarged. Scales on head embedded; those 

 on body very small, ctenoid on sides, cycloid on back and belly, 100 to 110 

 in a longitudinal series. Isthmus very broad. Pectorals reaching to mid- 

 dle of spinous dorsal. Highest anal ray 1* in head. Post-temporals inserted 

 twice as far from occipital crest as in Eleotris pisonis. Parietals ending 



* Types, 2 specimens in poor order, from Vera Cruz, 0.09 mm. long. Snout a little more 

 steep and convex than usual in Dormitator maculatus. Head 3J in length ; depth 3J. Eye 

 4J in head. D VII, 9; A. 11 ; scales 31-11. Soft dorsal very high, with round black spots. 

 Caudal and anal plain. This seems to be inseparable from" Dormitator maculatus. 



t We have the following note on the type of Eleotris grandisquama: Type specimen in 

 fair condition, 0.14 mm. long, from "Amerique Meridionale?" Head slenderer than iu D. 

 maculatus, and much depressed, its deplh at the eyes less than its width, which is less 

 than that of body. Anterior profile almost concave. Caudal fin large; other fins mod- 

 erate. Dorsal VI, 9; anal I, 9; scales about 29-11. A few dusky spots on dorsal and anal. 

 According to Dr. Kigenmann, specimens of Dormitator maculatus from the Rio Grande 

 agree fairly with this type, and it ia not likely that it is different. 



