190 Mr. W. F. Kirby on 



XVI. — Description of a new S lak'i of the Genus Atracta.^pU 

 from Mount Keniia, British East Africa. By G. A. 

 BoULENGIiU, F.R.S. 



A SMALL collection of reptiles marie by Mi-. S. L. Hinde at 

 Fort Hall, Mount Kenya, 4400 feet, contains, in addition to 

 specimens of four species previously de^cribe<l by me from 

 East Africa — viz. Lygusoma clathrotis, Ckamoileon Jaclaoai, 

 Cham(Eleon Roperi, and Glauconia Emini, — an example of 

 the Viperid genus Atractaspis, unique in having two post- 

 oculars instead of one. It represents a new species, which I 

 propose to name 



Atractasp is h ipostucu hi r is . 



Snout very short, rounded. Portion of rostral visible from 

 above half as long as its distance from the frontal ; suture 

 between the internasals as long as that between the pre- 

 frontals ; frontal a little longer than broad, nearly twice as 

 long as its distance from the end of the snout, as long as the 

 parietals ; one prje- and two postoculars ; a very large 

 temporal wedged in between the fourth and fifth upper labials 

 and in contact with the lower postocular ; five upper labials, 

 third and fourth entering tihe eye, fourth largest ; first lower 

 labial in contact with its fellow behind the symphysial; four 

 or five lower labials in contact with the chin-sliiel is, fourth 

 or fitth very large. Scales in 23 rows. Ventrals 233; anal 

 divided ; subcaudals 24 pairs. Dark olive above and beneath, 

 upper surface of head i)aler. 



Total length 240 mm.; tail IG. 



A single young sj)ecimen. 



XVII. — List of a Collection of Neuroptera Odonala (Dragon- 

 flies) formed by O. A. K. Marshall, Esq., at Salisbury, 

 Mashonalandy ivith Descriptl >ns of a new Genus and Two 

 new Species. By W. F. KiRBY, F.L.S., F.F.S. 



This small collection was recently presented to the Natural 

 History Museum by j\Ir. Guy Marshall, and is interesting on 

 account of all the specimens being marked with the month of 

 capture. A few notes are also added, chiefly on the colours of 

 the livin'j insects. 



