248 MKS. JANE LONGSTAFF ON NON-MARINE 



more slender^ the largest of these greatly resembles the figm-e of gracilis, 

 V. Marts. ; it measures, alt. 43, diam. 17, apert. alt. 17*5, diam. 7*5 min.^ but 

 it is not mature. 



Other slender forms of this group are L. longa, Pilsb., and L. loenigi, 

 Boettger, neither of which have I met with. 



The holotype oi L.flarmnata is from Mouna, a few miles north of Sennaar 

 on the Blue Nile. This species, or one of its varieties, ranges southwards 

 from this locality to the Lakes Albert and Tanganyika, also to the district 

 between the Lakes and Zanzibar, and eastwards to Abj'ssinia. 



LiMiCOLARiA HEUGLINI, von Martens. 



Acliatina {Limicolarin) heu(jlini, vou Martens, 1866, Malak. Blatt. vol. xiii. p. 91, pL 4. 

 figs. 1, 2. 



Three specimens were found at Hillet al-Nuwer. They may be distin- 

 guished from L. flammata, var. gracilis, v. Marts, by their flatter spire and 

 lower penultimate whorl. 



The holotype came from Southern Abyssinia. The species was taken by 

 Dr. le Boi on the Bahr el-Gebel and the Bahr el-Ghazal ; also in the latter 

 district by Dr. Schweinfurth. 



My largest example measures, alt. 34, diam. 16 mm. Yon Martens^ 

 longest shell measures, alt. 35, diam. 16 mm. 



LiMICOLARIA KAMBEUL, Brug., var. TURRIS, Pfeiff. 



Btdimus kamheul, Brugaiere, 1789, ' Enc. Metli.' vol. vi. pt. i. p. 332. 

 Var. turns, Pfeifter, 1861, Proc. Zool. Soc. Loudon, p. 25, pi. 2. fig. 3. 

 Limicolaria adaimmi, Jickeli, 1871, 'Fauna L. u. S. Moll. N.O.-Afrikas,' p. 154, pi. 6. 

 figs. 3 & 4. 



Two large and two very small specimens were found at Bejaf Wooding 

 Station, also ten immature ones five miles further south at Bejaf. Some 

 examples are bleached, but on others the periostracum with its deep 

 brown flammules is well preserved. The two larger shells aoree with 

 Pfeiffer's figure, and also with Jickeli's figures 3 and 4 on pi. 6 (op. cit.), 

 Avhich he calls L. adansoni, Pfr., and considers identical with L. furris, Pfr. 

 Pilsbry *, however, regards L. adansoni and L. turris as distinct varieties of 

 L. kamheul, Brug., the former being the western, and the latter the eastern 

 variety. My two larger specimens measure respectively, alt. 113, diam. 

 about 52 mm. (last whoid broken) ; alt. 95, diam. about 50 mm., alt. of 

 aperture 46, diam. of apert. 24 mm. (peristome and base broken). 



Dr. Boettger f records that Dr. le Roi found four specimens in this 

 district, one at Bejaf, two at Kiro, and one at Gemesa (Kanisa ?). 



* Tryon, ' Man. of Concli.' ser. ii. 1904, Pulraonata, vol. xvi. p. 252, pi. 25. figs. !), 10, 11. 

 t Proc. Malac. Soc. 1913, vol. x. pt. vi. p. 355. 



