Geological Society. 211 



as one of exceptional interest, which the speaker luid so far not 

 been able to investigate. 



The Jej)ression between the Mathews and associated ranges and 

 the Abyssinian frontier on which the Marsabit and Hurri volcanoes 

 were situated, and the origin of the Kuroli Desert (Elgess), were 

 the outstanding features of the district that recpiired further 

 elucidation. 



^Ir. G. C. Crick stated that the Cephah)poda submitted to him 

 by the Lecturer consisted chiefly of crushed ammonites from dark- 

 grey shales at Kukatta on the Juba Kiver (hit. 2° 8' N.), there 

 l)eing also a belemnite preserved in a yellowish-brown rock-fragment 

 from Serenli on the same river and somewhat north of Kukatta. 

 He reg-arded all the ammonites as referable to Perisjyhinctes and 

 its section Vir(jatosphinctes, and to species which had previously 

 been described from the neighbourhood of Mombasa. From this 

 assemblage of fonus he concluded tliat the shales at Kukatta were 

 of Upper Oxfordian (Sequanian) age. He stated that the belemnite 

 from Serenli indicated the presence there of a slender suleate form, 

 similar to those previously recorded from British Somaliland on the 

 north and from the neighbourhood of Mombasa on the south ; but, 

 although of Jui-assic age, it was too imperfectly shown in the 

 rock-fragment for accurate determination. 



Mr. R. BuLLEiT NEWTOJf said that he had examined a small 

 series of non-marine Kainozoic moUuscan remains belonging to 

 recent species, and associated with hard and soft limestones, 

 calcareous sandstones, and conglomerates, which had been collected, 

 by the Lecturer, and had determined them as follows : — 



Ampullakijl otata (?) Olivier. Locality. — Lak Buna. 

 Distribution. — Recent: Victoria Nyanza, Tanganyika, Nile; 

 Post-Pliocene: Egypt; Miocene: Victoria Nyanza. 



Melama TUBERCULATA (Miiller) (= atrvieosfa Deshayes). 

 Localities. — Ai'cher's Post; Lak Buna ; Chikali Khofu. 



Distribution. — Recent: Nile, Rudolf, Nyasa, Tanganyika, 

 India, etc.; Post-Pliocene: Egypt and Sahara; Pliocene: 

 •Ij;ike Assal, French Somaliland (formerly regarded as Abyssinia) ; 

 Miocene : Rudolf (Omo River), Greece, North Italy, etc. 



Cleopatra bulixioides (Olivier). Localities. — Lak Buna; 

 Chikali Khofu. 



Distribution. — Recent: Nile, Rudolf, French Somaliland, 

 Zanzibar; Post-Pliocene: Egypt; Pliocene: French Somali- 

 land; Miocene: Victoria Nyanza. 



Bytui>'IA and Plaxorbis spp. Locality. — AVaihir. 



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