632 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



every where scaly. Scales large, ctenoid. Isthmus moderate; gill-clefts 

 extended a little forward above ; gill-rakers long. Pharyngeal teeth 

 setaceous ; an external series broad, flexible, lamelliform. Dorsal spines 

 flexible, usually 7; ventrals separate. Brackish waters in the tropics. 

 (Latin, dormitator, one who sleeps.) 



9§0. I>. liaieatMS Gill. 



Brownish-yellow, thickly punctulated with darker, with a dark line 

 running along the midd e of each row of scales, and with a dark ver- 

 tical blotch on the scapular region; head apparently with 2 dark longi- 

 tudinal bands; dorsal and anal fins with 2 rows of dark spots near the 

 base, a fainter one beyond; all the fins with minute dark dots. Head 

 3§ in length; depth about 3i. Eye equal to snout. T). VlI-1, 10; A. I, 

 10; Lat. 1. 32. [Gill.) Savannah, Ga.; x^robably identical with the next. 



(Gill, Troc. Acad. Nat. Sci. Phila. 1863, 271.) 



1>§1. E>. mactiHatMS (Blocli.) Gill. — Sleeper. 



Dark brown, with lighter bluish spots; a faint dark stripe along sides; 

 a large dark blue spot edged Avith black above base of pectorals, and 

 a dark streak from eye to angle of mouth; two dark streaks on side of 

 head; branchiostegal membrane blackish; dorsals barred with spots; 

 anal dusky, barred with bluish, and with white margin; a dark bar on 

 base of pectoral. Caudal a little shorter than head. Eye small, shorter 

 than snout. Head 3| in length ; depth about 3 (in the adult). D, VIl-9 ; 

 A. 10; Lat. 1. 33. L. 12 inches. Kio Grande and southAvard to Guiana 

 and Equador; very abundant in brackish waters. (Here described from 

 specimens from Mazatlan.) 



{Sciana maeulata Bloch, IchtL. taf. 209, f. 2: EJcotris mu(,iloides C. & V. xii, 26'>: 

 Eleotris maeulata Giinther, iii, 112: Elcotris sumvulenins Givard, U. S. Mex. Bound. 

 Surv. Ichth. 1859, 28: Eleotris somnolenta Giiutber, iii, 557: Bormitator omocyanctis 

 Poey, Syu. Pise. Cubens, 396.) 



342.— EVOSSTTIIODUS Gill. 

 (Gill, Proc. Acad. Nat. Sci. Phila. 1859, 195: type Ei-orthodiis hrerieeps Gill.) 



Body elongate, covered with ctenoid scales of moderate size. Head 

 thiok, short. Isthmus moderate. Teeth in a single series, with the 

 crown emarginate, those of the lower jaw horizontal; no canines. First 

 dorsal of G spines; ventral fins united, not adherent to the belly, (sw, 

 well; opOo-., straight.; odou:;^ tooth.) 



982. E. cataalaas (Grd.) Gill.* 



Olivaceous, with cross-blotches of darker. Body subfusiforra. Head 



* We are informed by Professor Gill that this species, or a species supposed to be the 

 same, is au Evorthodus. The types are uow lost. 



