FISHES OF HAWAIIAN ISLANDS. 
83 
tubes on lower surface of snout in front; interorbital space a little more than the eye and convex; gill- 
openings low, the space between rather broad; skin smooth; head with many mucous pores; lateral 
line well developed; origin of dorsal midway in length of head; dorsal and anal low; pectoral rather 
small. 
Color in alcohol, brownish olive; lower surface light yellowish washed with silvery; upper sur- 
face of body dark, being covered with minute blackish dots. 
This species is probably the type of a new genus, Jenkinsiella, characterized by the fringe of short 
Fig. 18. — Microdonophis mac.gregori Jenkins; from the type. 
fleshy barbels on upper lip. The only known specimen is an example 10.5 inches long obtained by 
Mr. Richard C. McGregor, February 1, 1900, at Lahaina, Maui; type, No. 50721, U. S. Nat. Mus. 
ificrodnnoph is macgragori Jenkins, Bull. U. S. Fish Comm., XXII, 1902 (Sept. 23, 1903), 422, fig. 2, Lahaina, Maui. 
Genus 50. BRACHYSOMOPHIS Kaup. 
This genus differs from Mystriophis chiefly in the presence of a conspicuous fringe of papillae on 
the lips. The vomerine teeth are canine. Species chiefly East Indian; one recently described from 
the Hawaiian Islands. 
Brachysomophis Kaup, Apodes, 9, 1856 (Iwrridus) . 
38. Brachysomophis henshawi Jordan & Snyder. Plate 7. 
Head measured to gill-opening, 7.5 in total length, 3.8 in length to vent; depth 2.5 in head; eye 
1.5 in snout; snout 10 in head. 
Body cylindrical, the head greatly depressed, swollen laterally in the region of the occiput, nar- 
rowing anteriorly to the pointed snout; a conspicuous transverse depression in the postorbital region; 
interorbital space concave, its width equal to length of snout; a slight supraorbital crest ending in a 
prominent wart-like protuberance behind eye; nostrils with minute tubes, the anterior located midway 
between tip of snout and eye, the posterior on lip between eye and anterior nostril; mouth large, 
length of cleft 2.9 in head; lower jaw projecting beyond the upper; outer edge of lips with a row of 
rather course papillae; teeth of upper jaw in 2 rows, the outer ones small and close-set, the inner ones 
larger; vomer with a single row of 5 or 6 widely spaced canines, the anterior of which is about equal 
in length to diameter of eye, the others growing successively smaller; tip of jaw with 3 minute teeth 
separated from the lateral rows by a wide space; lower jaw with a single row of widely spaced fang-like 
teeth; teeth all sharply pointed, many of those in each jaw depressible; no tongue; gill-openings below 
middle of body, their length equal to width of space between them, or to distance between tip of snout 
and posterior border of eye; one-fourth of base of pectoral above gill-opening; length of pectoral equal 
to distance between tip of snout and center of pupil; dorsal inserted behind gill-opening a distance 
contained 2 times in space between gill-opening and pupil; height of fin a short distance behind its 
origin about equal to diameter of pupil, slighly higher in region above vent; origin of anal just behind 
