103. URANOSCOPID.E. 027 



ventrals close together, thoracic, but behind the pectorals, I, 5, the 

 middle rays longest; caudal lunate, with many accessory rays, on a 

 slender peduncle. Tw r o species known, from the North Pacific. 



(TracMnidcv, genus Trichodon Giiutlier, ii, 250.) 



331. TKICHD<[>]V Steller. 



(Steller; Cuvier, Regne Aniru. ii, 1829: type Trachinus trichodon Tilesius.) 



Characters of the genus included above, (fy^lj hair; oV?<yv, tooth.) 



915. T. stelleri Cuv. fc Vol. Sand-fish. 



Olivaceous silvery, the back darker, with short bars and reticula- 

 tions of blackish, the latter chiefly on the head and nuchal region; be- 

 low this a longitudinal narrow white stripe, and then a narrow black 

 stripe, interrupted anteriorly, extending from the eye to the base of 

 the caudal; spinous dorsal with 2 lengthwise bauds of black; chin and 

 snout black. Eye large, placed high, 3 in head; maxillary extending 

 to beyond its middle; the premaxillary near the level of its upper edge; 

 cheek quadrate, as deep as long. Pectorals reaching past vent, the 

 lower rays rapidly shortened, the width of its base f its length, two- 

 thirds the length of the head; anterior rays of anal less than half the 

 height of the posterior. Head 3J; depth the same. D. XV-18; A. 9, 

 19. L. 12 inches. Coast of Alaska, south to San Francisco, burying 

 itself in the sand near the shore; not rare northward. 



(Trachinus trichodon Tiles. Me'm. Ac. Petersb. 1813, 466; Cuv. & Val. iii, 154; Giiu- 

 ther, ii, 251: Trichodon lineatus Ayres, Proc. Acacl. Nat. Sci. Pbila. 1860, 60.) 



FAMILY GUI. URANOSCQPID.E. 



(The Star Gazers.} 



Body more or less elongate, conic, terete or subcompressed, widest 

 and usually deepest at the occiput. Scales small, smooth, adherent, 

 arranged in very oblique series, rarely wanting. Lateral line feeble or 

 obsolete. Head cuboid, partly mailed above. Eyes small, anterior, on 

 the top of the head. Mouth vertical, the mandible strong and promi- 

 nent; lips more or less conspicuously fringed; teeth moderate, on the 

 jaws, and usually on vomer and palatines also; premaxillaries protrac- 

 tile; maxillary b/oad, without supplemental bone, not slipping under 

 the preorbital. Gill-openings very wide, continued forwards; gill- 

 membranes nearly separate, free from the isthmus. Branchiostegals G. 



