452 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Dorsal beginning over end of opercular flai), its distance from nape equaling distance 

 of latter from posterior margin of pupil. Membrane of last spine slightly joined to 

 base of caudal. Anterior dorsal spines short, but well connected by membrane. 

 Anal with three distinct spines, shorter than the rays that follow, the second the 

 longest, all as sti'ong as dorsal spine, and fully connected by membrane. Rays all 

 branched at tip. Membrane of hist ray joined only slightly to base of caudal. 

 Caudal sharply pointed in our specimens, the median rays longest, about as long as 

 head. Pectorals evenly rounded, the median rays longest, 14 Or 15 in number, all 

 branched. Yentrals well developed, about two-fifths as long as head, consisting of 

 one short, sharp spine and three rays, the spine not closely joined to rajs. 



Lateral line indistinct, usually a^jpearing obsolete, more evident toward head, con- 

 sisting of a series of distinct pores along median line. Scales very small, cycloid, 

 imbricated, covering body, including abdomen, breast, and nape. Cheeks scaled, the 

 head otherwise naked, or sometimes with a small patch of scales on upper part of 

 opercles. D. LVii to LX ; A. iii, 40 to 42. 



Color: Sides with a series of 10 to 12 narrow white crossbars, the first in front of 

 dorsal fin, the last under last dorsal spine, the bars about one-fifth interspaces. 

 Above lateral line they are conspicuously margined with darker; below lateral line 

 they broaden out and become forked, forming A-shaped markings. Upper caudal 

 rays at base with an oval white ring inclosing a darker area; this mark more 

 conspicuous in the young. Belly and ventrals white, other fins dusky, but without 

 definite markings. 



Family CRYPTACANTHODIDiE. 



122. Delolepis virgatus Bean. 



A decayed specimen was found on the beach at Unalaska. 



LYCONECTES gen, nov. (CRYPTACANTHODID^.) 



Difl'ering from Cryptacantliodes principally in the absence of palatine teeth, agreeing 

 with it in general appearance and in most details of structure. Mouth subvertical; 

 lower jaw projecting; premaxillary protractile. Teeth strong, conic, wide-set, in 

 more than one series. Mucous pits prominent on head. Gill-opening narrow, ceasing 

 opposite middle of base of pectorals, the membranes widely joined to isthmus. 

 Dorsal and anal wholly joined to caudal, the latter extending well beyond them. 

 Dorsal fin composed of spines only. No ventral fins. Body naked. No lateral line. 

 Type L. aleutensis. 



123. Lyconectes aleutensis sp. nov. (Plate 34.) 



Head 7^ in length, without caudal ; depth 14^. Dorsal Lxix; anal 49; pectorallS; 

 caudal 18. Head square in cross section, the upper and lower surfaces plain, the 

 cheeks vertical, the depth and width equal. Mouth still more oblique than in 

 Cryptacanthodes maculatus, with much heavier mandible and less expanded maxillary, 

 the exposed portion of the latter with vertical axis, not extending beyond vertical 

 from middle of the eye. Teeth all similar, few in number; those in premaxillary 

 arranged in two series, the inner of which are smaller than outer, from which they 

 are separated by a wide interspace. Teeth in mandible in a single series laterally, 

 becoming a sparsely filled patch toward symphysis. Four or five similar conical 

 teeth on liead of vomer. Palatines toothless. A long nostril tube overhangs the 

 upper lip. ITi)per lij) separated by a fold from forehead, the upper jaw protractile. 

 Eye extremely small, sunken in the socket, which it does not nearly lill, its diameter 

 slightly less than half interorbital width. The supraorbital rim is not elevated, and 

 contains no conspicuous projections. Suborbital rim swollen, with an enlarged 

 mucous channel; a conspicuous series of mucous pits along each mandible and the 

 margin of the preopercle; two series on top of head, diverging backward firom above 



