2868 Bulletin 4.7, United States National Museum. 



Page 2227. The type locality of GoUus losci is Martinique. 

 Page 2230, second line, read "^MERAUDE" for "EMERANDE." 

 Page 2241. Insert the following synonymy after No. 2572: 

 Gobius lucretice, EIGENMANN & EIGENMANN, Proc. Cal. Ac. Sci., ser. 2, vol. I, Jan. 25, 

 1888, 57, Pearl Island, Gulf of Panama. 



Page 2263. To the synonymy of GoUoides add: 

 Plecopod/us, RAFINESQUE, Anal, cle la Nature 1815, 87 ; substitute for Gobioidet. 



Page 2269. Omit the last reference but one. 



Page 2314. To the synonymy of Batrachoides add : 

 Batrictius, RAFINESQUE, Anal, de la Nature 1815, 82 ; substitute for Batrachoides. 



Page 2350. After Enneanectes carminalis insert : 



868(a). DIALOMMUS, Gilbert. 



Dialommw, GILBERT, Proc. U. S. Nat. Mus. 1890, 452 (fugcus). 



Teeth conic, strong, in a narrow band in the front of both jaws, this 

 narrowing to a single series laterally; outer teeth enlarged in both jaws. 

 Teeth on vomer in a single series ; palatines smooth. A single slender ten- 

 tacle above orbits, and 1 on each side of nape. Body with moderate 

 cycloid scales ; lateral line high in front, declining behind pectoral fins, 

 not strongly developed, evident on a few scales near head, the remainder 

 of its course traceable by occasional pores on bases of scales or by their 

 notched margins. Dorsal beginning on the nape, its anterior $ composed 

 of slender flexible spines, the remainder of soft rays, imbranched ; anal 

 without spines; caudal distinct, rounded; ventrals well developed, I, 3. 

 Eyes as in Anableps, the cornea divided by an oblique pigmented baud 

 into an anterior lower and a posterior upper half. One species known. 

 (Stcc yvoo, to loose one from another, to part asunder; oju/tia, eye.) 



2687 (a). DIALOMMUS FUSCUS, Gilbert. 



Head 5 in length ; depth 6 to 7. D. XXV, 13 or 14 ; A. 1, 28 ; lateral line, 

 52. Elongate, slender, scarcely tapering. Head short, transversely evenly 

 rounded, with very short, blunt, decurved snout ; width of head greater 

 than its depth, and more than its length. Mouth horizontal at lower 

 outline of snout, the maxillary nearly reaching vertical from posterior 

 margin of orbit, 2f in head. Teeth strong, conical, the outer series en- 

 larged in both jaws, a narrow band of villiform teeth behind the outer 

 series ; vomer with a single series ; palatines toothless. Eyes largo, 

 round, closely approximated, their diameter greater than length of snout, 

 twice the width of interorbital space, 3 in head. Gill membranes very 

 widely joined, free from isthmus. No hook on inner edge of shoulder 

 girdle. Dorsal fin beginning on the nape, over front of opercle, its spines 

 slender and flexible, much lower than soft rays; height of anterior and 

 middle spines about equal, length of head ; the posterior spines short- 

 ened, about i that length; height of soft rays i head; first anal ray short 

 and spinous, the succeeding rays articulated, but not branched (like those 

 of dorsal) . Interradial membranes of anal fin very deeply incised ; caudal 



