NO. 1115. PROCEEDINGS OF THE NATIONAL MUSEUM. 441 



reaching to front of orbit; upper lip rather Ihiek; lower jaw with a 

 knob at the middle which fits into an emargmation m the upper, its 

 angle more obtuse than a right angle; space on chin between mandib- 

 ular bones, broad in front, acute behind, the subopercles meeting below. 

 Teeth very minute, scarcely appreciable. Preoibital minutely serrated. 

 Pectorals reaching about to middle of end of ventrals, not to spinous 

 dorsal; spinous dorsal inserted above posterior end of ventral when 

 fin is depressed; first S])ine of dorsal the longest; soft dorsal and anal 

 similar, their margins incised ; ventrals inserted behind middle of 

 pectoral; soft dorsal and anal scaly, 23 scales before dorsal. 



Color slaty, bluish above, silvery below; sides with rather faint longi- 

 tudinal bluish stripes which follow the rows of scales, fading out on the 

 belly and running into the darker color on the back; ventrals and anal 

 pale; pectoral and dorsals dusky; a dusky bar at base of pectoral. 



Type. — No. 47570, U.S.N.M.' Two specimens, the largest 8 inches 

 long, collected by the Albatross in the Galapagos. Close to Mngil 

 incilis, the head larger, and with several minor differences. The species 

 is named for Dr. Wilbur W. Thoburn, of Leland Stanford Junior 

 University. It appears as a new species in "Fishes of North aud 

 Middle America," by Jordan and Evermann. 



Family HOLOCENTRID.E. 



MYRIPRISTIS CLARIONENSIS, Gilbert, new species. 

 (Plate LXIX.) 



Differing from all known American species of Mt/ripristis in having 

 3^ series of scales between the lateral line and the base of tbe spinous 

 dorsal, instead of 2i. The scales are comparatively small (41 in the 

 course of the lateral line). The color is dusky red, without black bars 

 or any sharp markings. 



Head 3|^ in length; depth 2f. Least depth of caudal pedun(de half 

 length of snout and eye. Greatest (oblique) diameter of eye 2^ in 

 head. Least interorbital width equaliug length of snout, 4.^ in head. 

 3Iouth less oblique than in related species, the line of upper jaw 

 with a more pronounced double curve. Lower jaw the longer, with 

 well-developed symphyseal knob. Teeth finely villiform, very slightly 

 enlarged toward middle of both jaws. Wide patches of similar teeth 

 on head of vomer aud on palatine bones. Length of maxillary (meas- 

 ured from front of upper jaw) very slightly (about one-twentieth) less 

 than length of snout and eye. D. k-1, 14; A. IV, 12. Scales 3.^-41-7. 



Color before immersion in spirits, reddish, the upper parts dusky, 

 especially on top of head and on the margins of the scales. Evident 

 horizontal dusky streaks between the rows of scales. Opercular mem- 

 brane blackish. Fins all light, without dark markings. 



Type.— No. 47746, U.S.N.M. 



'Transferred from Leland Stanford Junior [Juiversity Museum, where it was num- 

 bered 1607. 



