646 



the symphysial; both pairs of chin-shields in contact with each other: 

 Scales in 13 rows. Yentrals 164; anal entire, subcaudals 22. Tail 

 ending bluntly. Dark brown above, with black crossbands two scales 

 wide, separated by much broader interspaces, a distinct purplish gloss. 

 Centres of the scales of the outer, and of some of the second rows, 

 white; belly yellowish with black cross-bars, the outer extremity of 

 each ventral black, a blackish line along the middle of the lower sur- 

 face of the tail. 



Total length 285 millimetres, tail 25. 



East Sumatra, Langkat. 



A single specimen, collected by Herr Koschinsky at Langkat 

 in 1899. 



Named in honour of Professor L. Döderlein, Straßburg. 



2) Aparallactus Hagmanni nov. spec. 



Diameter of the eye equals half its distance from the oral border. 

 Rostral broader than deep, the portion visible from above measuring 

 nearly one third its distance from the frontal; internasals a little 

 shorter than the praefrontals : frontal once and one third as long as 

 broad, little longer than its distance from the end of the snout, much 

 shorter than the parietals; nasal entire, not in contact with the prae- 

 ocular; one prae- and two postoculars; temporals 1 + 1. (The posterior 

 temporal on each side is half fused with the parietal.) Seven upper 

 labials, first in contact with the internasal, third in contact with the 

 praefrontal, third and fourth entering the eye, fifth in contact with 

 the parietal, fifth deepest, sixth longest; first lower labial in contact 

 with its fellow behind the symphysial; two pairs of chin-shields anterior 

 much longer and broader than the posterior, and in contact with four 

 lower labials. Scales in 15 rows. Ventrals 185; anal entire; sub- 

 caudals 26, the first and 26th subcaudal are divided, the rest single. 

 Tail ending in a point. Dark brown above, lighter on the sides; head 

 blackish; each scale with a light margin; a bluish gloss on the back. 

 Belly grey, darker at the sides; tail grey below, getting darker towards 

 the tip. Total length 420 millim. tail 40. 



West Africa ; Victoria. 



A single specimen from Victoria, West Africa, Speyer 1900. 



Named in honour of Director Hagmann of the Zoological 

 Gardens at Basle. 



With reference to the specimens of Tropidonotus aurita in the 

 above mentioned collections, it is of interest to remark that we have 

 two fairly constant varieties here. Of the 18 specimens which I had 

 to examine 1 1 have 8 upper labials the 4th and 5th of which enter 



