238 BULLETIN OF THE BUREAU OF FISHERIES. 
caudal fin continuous with dorsal and anal; no pectorals; gill-openings a distance behind eye equal 
to 2.25 times length of maxillary; vomerine teeth in two rows; teeth in jaws uniserial. Color in spirits 
light brownish, everywhere specked finely with darker, except on belly, which is pale. 
This species is known to us from a single specimen, 3.75 inches long, collected in Manila Bay by 
Dr. J. C. Thompson, of the United States Navy, for whom the species is named. The type is no. 
20201, Stanford University. 
In its large mouth and in many other features this eel resembles Murxnichthys macrostomus Bleeker, 
but the insertion of the dorsal fin 1s different. 
Family OPHICHTHYIDA. 
PISOODONOPHIS Kaup. 
22. Pisoodonophis cancrivorus Richardson. got. 
Depth 32; head 8.5; cleft of mouth 2.8 in head; eye 1.75 in snout; pectoral 3.75; head in distance 
from gill-opening to vent 2.5; trunk equal to head and body equaling .78 of tail, in which it is contained 
1.37 times; dorsal inserted over middle of pectoral. Color in life light brown above; white below; 
chin and throat pale yellow; pectoral yellowish; dorsal edged with black; anal edged with black on 
posterior border. 
One specimen from Cuyo, 20 inches lon 
¢, and one from Manila, 28 inches. 
Fic. 2.—Pisoodonophis macgregori, new species. Type. 
23. Pisoodonophis macgregori Jordan & Richardson, new species. 
Depth 33; head 7.90 in total length; head in distance from gill-opening to vent 2; combined length 
of head and trunk equal to .66 of tail; cleft of mouth 2.75 in head; eye 1.50 in snout; pectoral 3.50; dorsal 
inserted over first fifth of pectoral; teeth molar in irregular double bands on jaws and vomer. 
Color brown above and on sides, finely punctulated; under parts paler; dorsal and anal rather 
broadly margined with blackish. 
This species has the body shorter and the dorsal inserted farther forward than in Pisoodonophis 
cancrivorus. 
One specimen, 10 inches long, from Manila; no. 20210, Stanford University. 
OPHICHTHUS Ahl. 
24. Ophichthus tapeinopterus (Bleeker). 
One specimen from Manila, 10.75 inches long. 
25. Ophichthus grandoculis (Cantor). 
Depth 28; head 9.8 in total length; head in distance from gill-opening to vent 2.9; combined 
length of head and trunk equal to .66 of tail; cleft of mouth 3.75 in head; pectoral 3.20; dorsal inserted 
over middle of reflexed pectoral; teeth in jaws uniserial; teeth on vomer in a double row anteriorly. 
Body very finely and uniformly punctulated with brownish above and below and on sides, except 
for lateral part of abdomen, which is whitish; dorsal and anal edged with black. 
One specimen, 10 inches long, from Manila. 
LEIURANUS Bleeker. 
26. Leiuranus lithinus Jordan & Richardson, new species. 
Depth 32; head 10.5 in total length; tail equal to trunk and head; length of head 5 in distance from 
gill-opening to vent; head and trunk equal to tail; cleft of mouth 3.50 in head; pectoral 4.15; dorsal 
