4 74 ZOOLOGY. 



they appear to have been found further to the south- 

 west, near Lake Dembea. 



1. Helix Darnaudi, Pfr. 



Common throughout Northern Tigr^, from about 

 3,000 to 8,000 feet above the sea. I found it at Undul 

 Wells, Senaf6, Takonda, Adigrat, and in the Anseba 

 valley. 



2. S. sp. HOT. 



An ally of H. pisana, and still more closely allied to 

 TI. subrostrata, For. It is distinguished from the former 

 in its much more open umbilicus, from the latter in being 

 smaller and less solid. Specimens, undistinguishable 

 from those collected by me in Abyssinia, were brought 

 from Persia by Mr. Loftiis, and are in the British Museum 

 collection. 



This shell abounded in the limestone tract north of 

 Antalo, the aloes and some of the bushes being frequently 

 covered with it. 



3. H. cryophila, V. Martens. 



Occasionally found in the mountainous country of 

 Lasta near Meshek, Lat, &c. It has four whorls, and the 

 last appears to be rather less broad than would appear 

 to be the case with the types described by Von Martens, 

 but there is no essential difference. 



A single worn specimen from Adigrat is higher in 

 proportion to the diameter, and may belong to a distinct 

 species. 



4. H. rivularisiV) Krauss. 



Agula, Tigr^. This agrees very well, except that it is 



