288 LIMICOLARIA, EAST AFRICA. 



58. L. ROHLFSI 'Martens' Kobelt. PL 31, figs. 5, 6, 7. 



In form and sculpture like L. dimidiata, but the vertical 

 striae are weaker, and it is wholly without spiral lines on the 

 lower whorls. Coloration peculiar : yellow-brown, with a row 

 of dark brown spots close under the suture, and a full dark 

 brown band around the umbilical chink, the space between 

 being uniform, without streaks. Upper whorls frequently 

 reddish (Marts.). 



Length 65, diam. 25, apert. 25 x 16 mm. 



Length 60, diam. 26, apert. 25 x 15 mm. 



Mhugu, northeast side of Victoria Nyanza (Neumann) ; 

 grassy steppe in Vitshumbi, on the southwest end of Albert 

 Edward Nyanza (Stuhlmann). Ngadda river, northwest of 

 the junction of the Benue and Niger (G. Rohlfs). 



L. rohlfsi Martens, KOBELT, Conchyl. Cab., p. 72, pi. 23, 

 f. 5, 6. MARTENS, Beschalte Weichthiere Ost-Af., p. 107, 

 pi. 5, f. 36. 



Figures 5, 6 are copies of Kobelt 's type figures. 



59. L. DIMIDIATA v. Martens. PI. 31, figs. 10, 11. 



Shell rather elongate, distinctly striatulate, lightly decus- 

 sate; yellowish, with oblique, somewhat undulating reddish- 

 brown stripes, visible on the lower half of each whorl, in- 

 cipient on the fifth whorl. Whorls 8. Length 49.5, diam. 

 20, length of aperture 19 mm. (v. Mart.). 



East Africa: Kilima-Njaro (Hans Meyer) ; Kenia, at 

 Njenips-Indogo, near Lake Baringo (Dr. Gregory). 



L. flammea var. dimidiata v. MART., Sitzungsberichte d. 

 Gesellsch. naturf . Freunde zu Berlin, 1890, p. 132 ; Conchol. 

 Mittheil., iii, p. 9, pi. 43, f. 6, 7 (1894). SMITH, Proc. Malac. 

 Soc. Lond., i, p. 165. L. dimidiata MARTENS, Beschalte 

 Weichthiere Ost-Afrikas, p. 106. 



Seems sufficiently distinct from L. flammea, with which it 

 was formerly united. Some 14 specimens of similar size and 

 markings are known. 



59a. Yar. volkensi Martens. 



Volkens found several specimens of a rather intense straw- 



