304 COLUBRID. 
equal to its distance from the mouth; five or six upper labials, 
third and fourth entering the eye; symphysial in contact with the 
anterior chin-shields ; posterior chin-shields in contact or separated. 
13 rows of scales. Ventrals 153-210; anal entire; subcaudals 
15-26. Tail ending in a point. Dark brown or black above; 
beneath yellowish, with or without large black transverse spots or 
cross bands, or uniform blackish brown. 
Total length 410 millim. ; tail 33. 
Sumatra, Borneo, Java, Moluccas. 
A, Head yellow; body with transverse series of small yellowish 
spots; belly with large black spots or cross bands. 
© (V. 164; C. 20). Sarawak. Sir J. Brooke 
‘i (P.] (Types of 
b. Her. (V. 153; C. 26). Borneo. A: B.Wallace, ¢ CU 
Esq. [P.]. on 
to 
. Head yellow, with a black lateral streak, passing through the eye ; 
above with yellowish cross bars disposed regularly, each of 
which in the middle expands into a longitudinally oval spot; 
belly barred black and yellow, the yellow bars confluent with 
the dorsals. 
Her. (V. 184; C. 26). Mt. Batu-Song, C. Hose, Esq. [C.] 
Sarawak, 1000 ft. 
& 
C. Head yellow above, entirely or partially ; body without spots ; 
belly with black cross bands. 
a. od (V. 154; C. 25). Borneo. A. R. Wallace, Esq. [P.]. 
b. 9 (V. 169; C. 18). Borneo. 
e. Yg. (V.193; C. 22). Sumatra. Dr. Bleeker. (Type of 
C. melanorhynchus.) 
d. Her. (V. 167; C. 20). E.coastof Suma- Mrs. Findlay [P.]. 
tra, 
D. Head uniform dark brown or black above, like the body ; belly 
with large black spots or cross bands. 
a. 9 fs 161; C. 20). Matang, Borneo. 
6. d (V. 188; C. 24). Sumatra, Dr. Bleeker. 
(Type of C. alkeni.) 
c-d. 3 Ge 163, 164; Padang, Sumatra. 
C. fare 
e. 2 ( Pea C. 18). Java. C. Bowring, Esq. [P.]. 
fg, Y (Vv. 162 ; C. 23) Ternate. H.M.S. ‘Challenger.’ 
& Q (V. 183; C. 17). 
E. As in the preceding, but lower parts without or with mere traces 
of spots. 
a, Yg. (V. 202; C.17). Java. Dr. Bleeker. (Type of 
C. dimidiata.) 
b. Yg. (V. 210; C.15). Java. Dr. Ploem [C.]. 
