Vou. III] VAN DENBURGH AND THOMPSON—NEW SEA SNAKE 45 
No. 15001.—Body rings, above yellowish greenish gray, 
sides and below ochre yellow; demarcation not distinct, on 
about the ninth scale row. 
No. 15002.—Head and neck shiny jet black, body dull 
black, tail blacker; on nape two oblong yellow spots; on neck 
and body forty yellow spots on each side, the majority con- 
fluent across back; on tail, one similar mark and a faint yel- 
low spot behind it. The upper third of each spot on body is 
olive yellow, the lower two-thirds are orange yellow. These 
spots at widest part on body average one to one and one-half 
scales narrower than the black body-color between them. 
No. 15010.—Head and neck for over 100 mm. shiny jet 
black; latter with canary-yellow bars, the first represented by 
two little oblong patches three scales behind the posterior 
temporals. The black bars on the body average nine scales 
long on the middorsal line, and four or five on the middle of 
the sides. The light markings are grayish olive yellow above 
and orange below; there is an abrupt line of demarcation on 
about the eleventh to twelfth row of scales. Tail dull black, 
the yellow clear, no olive above. 
No. 15012.—Light markings olive gray above, light yellow- 
ish gray on sides, demarcation fairly sharp on about the 
eleventh row of scales. 
Anatomical Notes.—In the maxilla are positions for two 
fangs, the inner a trifle the more anterior. There usually is 
one fang firmly cemented into place, and another nearly erect 
but loose. The fangs are compressed laterally and are about 
one millimeter long. The space between the base of the outer 
fang and the center of the base of the first tooth is a little 
more than the length of the fang. There are five teeth, about 
two-thirds the length of the fang; the grooving is on the 
anterior and outer quadrant. 
The hemipenis (from specimen No. 15012) is bifurcate; 
with the organ everted and inflated the distance from an apex 
to the bottom of the division is .0004M.; sulcus bifurcate for 
a distance of .0026M. from apex. Apex and portion between 
rami of sulcus smooth. Papillz border smooth area for about 
two indistinct rows. Spines begin about the middle of the 
