2366 Bulletin //, United States National Museum. 



and third dorsal spines and another between the eighteenth and twenty- 

 first spines; the spines are low and strong, the highest equaling the snout 

 and | eye ; soft rays higher, the longest equaling \ head ; caudal short, 

 rounded, entirely free from dorsal and anal; anal similar to soft dorsal, 

 the first 2 rays spinous; ventrals inserted well in advance of pectorals, 

 each consisting of 1 spine and 2 soft rays, which are joined only at 

 base; pectorals pointed, the lower rays the longest, 1 in head. Scales 

 large, cycloid, the lateral line running high in front, descending to middle 

 of sides immediately behind pectorals, thence running straight to tail. 

 In the types, which are probably immature, the pores are not developed 

 on posterior part of body. Color in spirits, uniform light olivaceous, a 

 small dusky spot behind orbit and 1 below and behind it; opercle dusky. 

 In 1 specimen the rays of soft dorsal, anal, and caudal are finely barred 

 with dusky. (Gilbert.) Length 1 inches. Gulf of California. Two spe- 

 cimens known, from Albatross Station 3001, in 71 fathoms. (Cremnobates; 

 xprj/urofidrr/g, one that haunts rocks; a synonym of Auchenopterus.) 



Labrosomus cremnobates, GILBERT, Proc. TJ. S. Nat. Mus. 1890, 100, Gulf of California. 



(Coll. Albatrost). 

 Starksia cremnobates, JORDAN, Proc. Gal. Ac. Sci. 1896, 231. 



877. CRYPTOTREMA, Gilbert. 

 Cryptotrema, GILBERT, Proc. U. S. Nat. Mus. 1890, 101 (corallinum) . 



This genus differs from Labrisomus chiefly in the absence of nuchal fila- 

 ments and in the modified anterior portion of the lateral line, which runs 

 on a series of enlarged scales having no externally visible pores. (Kpvitros, 

 concealed; rpffina, pore.) 



2710. CRYPTOTREMA CORALLINUM, Gilbert. 



Head 3f to 4 in length ; depth 5. D. XXVII, 12 ; A. II, 27. Body elon- 

 gate, regularly tapering backward to caudal peduncle, whose depth equals 

 length of snout, which is sharp; mouth nearly horizontal; maxillary 

 reaching middle of eye or beyond, 2 to 2| in head; teeth strong, but 

 none of them enlarged, in a single series in jaws laterally, becoming 

 double anteriorly ; teeth on vomer and in a small distinct patch on front 

 of palatines; eyes large, the interorbital space flat, nearly diameter of 

 orbit; orbit slightly exceeding length of snout, 3 in head; branchios- 

 tegal membranes broadly united, free from isthmus, the posterior edge on 

 vertical from preopercular margin; anterior nostril in a short tube, a 

 slender flap arising from its posterior margin ; a pair of simple slender 

 filaments arising from the upper edge of each orbit, 1 on each side of 

 nape, none others on head ; gill rakers very short and weak ; shoulder 

 girdle without hook on its inner edge. Scales rather large, cycloid, the 

 head alone naked; lateral line in its upper anterior portion without 

 externally visible tubes, its position shown by a series of enlarged scales 

 twice the size of the others; on these the tubes are wholly on the under 

 side, each opening anteriorly by a single pore under the edge of the pre- 



