1887.] MR. SMITH ON MOLLtJSCA FROM THE CAMEROONS. 127 



6. List of the Reptiles collected by Mr. H. H. Johnston on 



the Cameroons Mountain. By Gr. A. Boulenger. 



[Eeceived January 8, 1887.] 



1. Varanus niloticus (L,). 2000 feet. 

 Hab. Whole of Africa south of the Atlas. 



2. Chameleon ovpenii, Gray. 2000 feet. 

 Hab. Cameroon, Fernando Po, Gaboon. 



3. Urobelus gabontcus (A. Dum.). 2000 feet. 

 Hab. Old Calabar to Gaboon. 



4. Naia haie (L.). 2000 feet. 



Hab. Whole of Africa south of the Atlas. 



5. Dendraspis angusticeps (Smith). 2000 feet. 



Hal. South Africa ; West Africa as far north as the mouth of the 

 Niger. 



7. On the Mollusca collected at the Cameroons Mountain 



by Mr. H. H. Johnston. By Edgar A. Smith. 



[Eeceived January 12, 1887.] 



All tbe specimens collected by Mr. Johnston were from an altitude 

 of from 7000 to 8000 feet. Of the seven species one only appears 

 to be new. This is not surprising, as Dr. Buchholz made fine collec- 

 tions in very much the same region some years ago, which were 

 described by Dr. E. von Martens^. 



The species are : — 



1. Vaginula phuroprocta. Martens. 



2. Helicarion plicatulus, Martens. 



3. Helix {Trochonanina) percarinata, Martens. 



4. Stenogyra retifera, Martens. 



5. Stenogyra oleata, Martens. 



6. Streptostele buchholzi. Martens. 



7. Gibbus {U^deiitulina) johnstoni, sp. nov. 



The first two species were met with by Buchholz at Aburi ou 

 the Gold Coast, the next four at Bonjongo in the Cameroons 

 Mountain. 



The following is a description of the new species of Gibbus : — 



Gibbus (Edentulina) johnstoni. 



Testa anguste umbilicata, ovata, subtenuis, nitida, grisea; 



anfractus 6|^, celeriter crescentes, convexi, superiores regula- 



riter arcuatim et confertim striati, penult, et nltimus obsolete 



striati ; apertura inverse auriformis, albida, longit. totius f 



1 Monatsb. Akad. Wiss. Berlin, 1876, pp. 253-274. 



