424 Dr. A. Giinther on new Species of Snakes 
on the nasal shield, crossing the eye and temple, and termi- 
nating near the end of the tail. Lower parts uniform whitish. 
This snake is probably from South-eastern Africa, and was 
obtained of Mr. Warwick. It is 20 inches long, the tail being 
4 inches, and the head 6 lines. 
Ahetulla dorsalis. 
Leptophis dorsalis, Bocage. 
Maxillary dentition ‘ coryphodont,” the posterior teeth 
being but little longer than the preceding. Ventral shields 
keeled. Upper labials nine, three entering the orbit. Anal 
bifid; ventral plates 184. Temporal shields 1+1+1. Skin 
between the scales black; each scale with a whitish spot on 
its outer margin. 
Angola. 
Ahetulla Kirkii. 
Ventral shields with strong lateral keels. Upper labials 
nine, two of which enter the orbit; arrangement of temporal 
shields rather irregular; anal bifid; ventral shields 171, 173 ; 
subcaudals 136-140. 
Scales smooth, in fifteen rows, without, apical groove. Lo- 
real elongate ; preocular in contact with the vertical. Teeth 
longest behind, in a continuous series. 
Green; skin between the scales black ; without white spot. 
Three examples have been sent by Dr. Kirk from Zanzibar. 
The longest is 40 inches long; tail 15 inches. 
Dryophis argentea (Daud.). 
We have lately received specimens of this snake in collec- 
tions made at Pebas and Yuimaguas, together with Rhino- 
bothryum lentiginosum. 
Tragops fronticinctus (Gthr.). 
Specimens of this snake have been collected by Mr. Theo- 
bald in Pegu. 7 
Tragops javanicus (Steindachner). 
This is a very distinct species, occurring also in Pegu, where 
specimens have been collected by Mr. Theobald. The anal 
shield is sometimes entire, sometimes divided; ventrals 189- 
192-193. Scales in the coccygeal region generally keeled. 
Prof. Peters (Monatsber. Ak. Wiss. Berl. 1868) has ob- 
served such keeled scales also in Tragops prasinus ; only a 
few of our numerous examples of that species show slight 
traces of keels in that region. Troptdococcyx (Gthr.) is based 
on the difference of the shields of the head (the form of which 
