158 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 9 



from body immediately behind pectoral base. Lateral line complete, arched 

 anteriorly for 12 scales, thence descending abruptly to mid-line of sides 

 and continuing to caudal base. 



Head moderate, cuboid, somewhat compressed, 4.4 in standard length. 

 Dorsal outline flattened, curved slightly downward to tip of snout. 

 Ventral outline of head curved steeply upward to tip of subsymphysial 

 region. Lower jaw heavy, subsymphysial region projecting beyond 

 mouth, forming a broad angle anteriorly. Mouth steeply oblique, almost 

 vertical. Gape moderate, end of maxillary reaching to slightly behind 

 posterior edge of eye, 2.9 in head. Lips fringed with small, close-set 

 fimbriae. Eyes small, superior, 8.8 in head, placed on the outer ends of 

 short, retractile stalks. Interorbital narrow, 16 in head. Snout short and 

 blunt, 8.8 in head, equal to eye. Jaw teeth in narrow villiform bands of 

 small, pointed teeth. No teeth on vomer or palatines. Nostrils paired ; 

 anterior nostrils tubular, placed anteriorly on snout just behind edge of 

 upper lip. Opercular fringe of 13 fimbriae. Subopercular and inter- 

 opercular membranes wide, flexible, and partially striated, covering 

 throat and bases of pectoral and ventral fins. Gills 4, a small pore behind 

 last gill-arch. Gill-rakers absent, slight granulations evident on first gill- 

 arch. Branchiostegal rays 6. Pseudobranchiae absent. 



Body color in alcohol light tan, with three darker lateral bands. 

 The upper band at the base of the dorsal fin, the second band along the 

 mid-line of the sides, and the lower band at the base of the anal fin. Head 

 of same color as body, overlaid dorsally with a brown, reticulated pattern. 

 Subsymphysial region with small, scattered, brownish punctations. Fins 

 pale. 



Comparisons. — Dactyloscopus elongatiis differs from the other species 

 of this genus, with the exception of D. zeloteSj in the increased number of 

 dorsal and anal rays. From D. zelotes it may be distinguished by the 

 greater number of dorsal spines, smaller scales, more slender body, and 

 different color pattern. This new species has fewer dorsal spines, smaller 

 scales, more anteriorly inserted dorsal and anal fins, and a different color 

 pattern than D. pectoralis, and may be distinguished from D. lunaticus 

 by its smaller scales, fewer opercular filaments, and differently arranged 

 mandibular teeth. 



