180 Mr. G. A. Bouleiiger on 7\ew 



Atractaspis Andersonii. 



Snout very short. Portion of" rostral seen from above 

 nearly as long as its distance from the frontal ; suture 

 between the internasals about half as long as that between 

 the prafroutals ; frontal large, once and one tifth to once and 

 one fourth as long as broad, much longer than its distance 

 from the end of the snout, as long as the parietals ; one prse- 

 and one postocular ; temporals scale-like, 2-|-3or3+4; six 

 upper labials, third and fourth entering the eye, fourth 

 largest ; first lower labial forming a suture with its fellow 

 behind the symphysial ; three lower labials in contact with 

 the chin-shields. Scales in 23 or 25 rows. Ventrals 219- 

 243 ; anal entire ; subcaudals 28-29, single. Uniform black. 



Total length 550 mm. ; tail 45. 



Five specimens from El Kubar. 



This species, named in memory of Dr. John Anderson, the 

 author of several contributions to Arabian herpetoh^gy, is 

 closely allied to A. leucomelas, Blgr., from Somaliland, from 

 which it differs in the broader frontal shield. 



In addition to the new snakes here described, Mr. Bury's 

 collection contains examples of the following species new to 

 Arabia: — Boodon lineatus, D. & B., Daai/peltis scabra, L., 

 and Nai'a hate, L. 



XX. — Descriptions of new Tailless Batrachians in the 

 Collection of the British Museum. By G. A. BOULENGER, 

 F.R.S. 



Arthroleptis Seimundi. 



Tongue with a conical median papilla. Head broader than 

 long ; snout short, broadly rounded, not prominent ; cauthus 

 rostralis distinct; loreal region slightly concave; interorbital 

 space much broader than the upper eyelid ; tympanum very 

 distinct, two thirds the diameter of the eye. Fingers slender, 

 with swollen tips, third very long, nearly twice as long as 

 second, first and second equal ; toes slender, with swollen tips 

 and a rudiment of web; a rather large, oval, compressed inner 

 metatarsal tubercle; no outer metatarsal tubercle; no tarsal 

 tubercle. The tibio-tarsal articulation reaches the eye. Skin 

 smooth, granular on the lower belly and on the back of the 

 thighs. Dark brown above, sides speckled with white ; a light 



