NEW OR LITTLE KNOWN FISHES. 221 



above (greenish in life), silvery below; a dark blotch on 

 opercle ; conspicuous dark olive stripes follow the center 

 of the scale rows upward and backward on the sides and 

 back; stripes about x / 2 as wide as pupil; spinous dorsal 

 dusky; ventrals and anal pale, without punctulations; lin- 

 ing of gill cavity quite dark ; gill membranes pale ; peri- 

 toneum pale. 



Resembles Umbrina xanti very closely; but is distin- 

 guished by the dark gill cavity, the small scales, small 

 second anal spine, and more anterior position of anal. 

 The stripes on the body are slightly darker, not so un- 

 dulating, and there are a few more of them, due to the 

 smaller and more regular scales. 



Length 8 inches. 



Type No. 1632, L. S. Jr. Univ. Mus., collected at 

 Mazatlan by the Hopkins expedition of 1894. Several 

 specimens were obtained in company with Umbrina xanti. 

 It is equally abundant, having been hitherto confounded 

 with the latter species. I may note that specimens of the 

 Calif ornian species, Umbrina roncador, are in the collec- 

 tion from Guaymas. 



Family SCORP^ENID^E. 



8. Emmydrichthys vulcanus Jordan & Rutter, n. gen. 



and sp. Plate xxvi. 

 Generic description : 



Body short and stout, length of head about equal to 

 depth; body with no scales, thickly covered with irregu- 

 lar dermal prominences. Cleft of mouth vertical. A 

 band of minute depressible teeth in each jaw, none on 

 vomer or palatines. Tongue free, short and broad. 

 Opercles unarmed, covered with thick loose skin. Gill 

 openings very long. Eyes with an almost vertical range, 

 the interorbital space very deep, a large pit behind and 



