176 



Bulletin American Museum of Natural History. [Vol. XXXV, 



Dactyloscopid.e. Sand Star-gazers. 



Gillellus arenicola Gilbert. 



(ape San Lucas, March 23, two specimens, about one and a half inches 

 long, taken in the seine. 



Dactyloscopus lunaticus Gilbert. 



Cape San Lucas, March 23, a dozen specimens, and San Josef I., March 

 31, one taken. All were captured in the seine. 



Dactyloscopus cinctus, sp. now 

 Fig. 14. 



Head 4; depth 6; D. about 43, spines weak, indistinguishable from rays; A. II, 

 33. Body compressed, tapering rather evenly backward from the insertion of the 

 pectorals. Head cuboid behind the eyes, abruptly conical in front, the profile straight, 

 top of head flat. Eye slightly longer than snout, 5.5 in head. Snout 6. Maxillary 



Fig. 14. Dactyloscopus cinclus sp. nov. 



reaching posterior edge of pupil, 3.5 in head. Interorbital width half the diameter of 

 the eye. Opercle fringed with about 20 teeth, the upper six or seven rather deeply 

 incised. 



Dorsal continuous, beginning just behind nape and well in front of anal origin. 

 Pectoral pointed, equal to head. Ventrals a little less than one half the head. 

 Caudal a little more than one third of the head. 



Scales 53. Anterior portion of lateral line running up close to base of the dorsal 

 fin, thence descending abruptly over three rows of scales and continuing posteriorly 

 on the middle of the side; anterior portion contained three and a third times in the 

 posterior portion. 



Color in alcohol, faintly purplish gray, more or less straw-colored about the head. 

 A conspicuous purplish black cross-bar at about the middle of the body, interrupted 

 on the upper part of the side; a similar bar about half way between this and base of 

 caudal, and a short bar across the upper part of the side just behind the head; a 

 dark blotch at base of caudal; dark linear spots on middle line of side at intermediate 

 points; a linear pearly white spot on midline of side on either side of median and 



