198 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 9 



present, complete. Head and trunk 2.68 in total length, 1.68 in tail. 

 Head 4.5 in head and trunk, 12 in total length, 7.5 in tail. Depth 46.8 

 in total length, 3.9 in head. Snout 7.5 in head, eye 4.5, mouth 4.5. 



Description. — Body very elongate, slender, subcylindrical anteriorly, 

 becoming compressed posteriorly on tail. Tail much longer than head 

 and trunk, which is 1.68. Head and trunk 2.68 in total length, tail 1.6. 

 Head 4.5 in head and trunk, 12 in total length, 7.5 in tail. Snout short, 

 10.5 in head, eye 4.5. Depth 46.8 in total length, 3.9 in head. Pectoral 

 length 12 in head. 



Dorsal origin over upper edge of pectoral base, confluent with anal 

 around tip of tail. Anal origin immediately behind vent, similar to 

 dorsal. Pectoral fins present, minute, of more than twenty rays, their 

 outer edges rounded. Ventral fins absent. Gill-openings small, lateral. 

 Gill-cover and gular region somewhat expanded, with many longitudinal 

 folds. Lateral line well developed anteriorly, less distinctly so posteriorly. 

 Origin on side of nape before gill-opening. Anterior pores close together, 

 each faintly outlined in white ; posterior pores body color and more widely 

 spaced. Two pores on each side beneath outer edge of lower jaw; 

 anterior pore at mid-length of jaw, posterior pore below rictus of jaws. 

 Two pores on each side of dorsal mid-line of snout, a small pore lying 

 just below anterior pore of each side. 



Head long, bluntly rounded anteriorly. Mouth oblique, lower jaw 

 pi'ojecting. Gape moderate, extending slightly past anterior edge of eye, 

 4.5 in head. Nostril an ovate pore at the anterodorsal edge of the eye. 

 Anterior nostrils not evident, if present. Maxillary teeth in narrow 

 bands of small, close-set, pointed teeth anteriorly, tapering to a single 

 row posteriorly. Anterior ends of maxillary bands widely separated by 

 vomerine teeth. Each maxillary band separated from vomerine teeth by a 

 narrow interspace. Posterior maxillary teeth lie outside the mandibular 

 teeth when the mouth is tightly closed, and are exposed. Vomerine teeth 

 in an elongate band of small, pointed, close-set teeth anteriorly, extending 

 backward in two irregular rows of slightly larger, more bluntly pointed 

 teeth. Mandibular teeth similar to maxillary teeth, bands separated by a 

 distinct interspace at symphysis of lower jaw. 



Color in alcohol light brown, lighter ventrally on head and trunk. 

 Dorsal and anal fins pale. Pectoral fins and gill-openings dark blackish 

 brown. Posterior third of lower lip dark brown. Anterior pores of 

 lateral line faintly outlined in white. 



