VO i88!* n '] PROCEEDINGS OF THE NATIONAL MUSEUM. 155 



or 4 rows of spots, those of the upper row elongate; anal pale, the row 

 of spots along each side extending slightly on fin. 



This species is known from a single specimen, 19 J inches long, taken 

 at Hood Island. It is a female, full of eggs. 



8. Ophichthus rugifer sp. nov. 



Diagnosis. — Closely allied to Ophichthus triserialis (Kaup), but differ- 

 ing as follows: Gill-opening, 2^ in the long pectoral, which is 2| in 

 head ; dorsal beginning over middle of pectoral ; head and entire body 

 corrugated; no black occipital band; dorsal with a submarginal row 

 of spots; anal pale; spots on under part of head not distinct; a dark 

 shade extending from gular region across opercles. In other respects 

 it agrees fully with the description of 0. triserialis, as given in Jordan 

 & Gilbert, Synopsis Fishes of North America, p. 359. 



Type: No. 41,428, U. S. National Museum. 



Hab.— Charles Island ; Galapagos Archipelago. 



Description. — Head, 2f in trunk; eye, 3| in gape, li in snout; gape, 

 2f in head ; tail, more than £ longer than head and body ; teeth, small, 

 acute, biserial in both jaws and on front of vomer. 



Color light olive, a row of rather large, round spots along lateral line; 

 a series of smaller spots on each side above the lateral series and alter- 

 nating with it ; a row of submarginal spots on tlie dorsal fin, irregularly 

 alternating with the second series. Top and sides of head with smaller 

 spots ; a dusky shade near the middle of each pectoral ; lower parts 

 pale except the jaws and throat. 



This species is known from a single female example, 21£ inches in 

 length, taken at Charles Island. 



9. Menidia gilberti sp. nov. 



Diagnosis. — Distinguished from M. paehylepis and yuatcmalensis 

 (Giiuther) by the much smaller scales. 



Type : No. 41,165, U. S. National Museum. 



Hab. — Panama. 



Description.— Head, 4§-4| (5£-5§ in total); depth, 5£-5§ (6 : \-Gf). 

 D. VI-I, 9 ; A. I, 21 or 22. Scales, 4-48 or 49-4. Length, 4^ inches. 



Body rather slender, elongate, compressed, especially below. Head 

 sh rt, its upper surface slightly convex. Snout larger than eye, 3 to 3£ 

 in head. Maxillary, 1£ in snout. Lower jaw included. Eye moderate, 

 3 to 3£ in head, T-J to 1J in interorbital space. Teeth in jaws small, 

 not close set, none on vomer or palatines. Gill-rakers long and slender, 

 about 20 developed below angle. 



Origin of first dorsal midway between posterior margin of head and 

 base of caudal, its posterior margin opposite front of anal. Its longest 

 spine 4| in head. Insertion of second dorsal midway between base 

 of caudal and fifth scale in front of first dorsal, opposite middle of 

 anal, its longest ray equal to snout. Distance between origin of second 



