LIMICOLARIA, EAST AFRICA. 283 



wards the apex, less gradually acuminate. Length 50-56, 

 diam. 18-21 mm.; apert. 17-19 mm. long, 11-12 wide. The 

 stripes rather wide and angular, often not quite reaching 

 the suture, or divided into several small ones there (Marts.). 



Matangisi, in Ugogo (Stuhlmann). 



L. caillaudi var. stuhlmanni MARTS., Sitz.-Ber. d. Ges. Nat. 

 Freunde zu Berlin, 1891, p. 15; Beschalte Weichthiere Ost- 

 Afrikas, p. 104, pi. 4, f. 1. 



Hildebrandt brought a form which may be referable to 

 this variety from Ukamba, on the other side of the Dunga 

 Mts. It is somewhat wider and rather regularly tapering 

 above, 56 x 32 mm., apert. 21 mm. This was noted under 

 the name flammea in Sitz.-Ber. d. Berlin Akad., 1878, p. 291. 



52&. Var. SMITHI Pils., n. v. PL 22, figs. 37, 38. 



Imperf orate, long and rather cylindric, with Sy 2 whorls; 

 yellow, copiously streaked, the stripes partly straight, partly 

 zigzag. Surface smoothish, some of the upper intermediate 

 whorls weakly decussate above; suture a little crenate. 

 Length 63, diam. 20, length of apert. 21 mm. 



Omo river (A. Donaldson Smith, Dec. 20, 1899). 



52c. Var. SPEKIANA Grandidier. PL 22, fig. 36. 



Long and slender, the spire swollen above as in var. stuhl- 

 manni, and much more than in var. smithi. 



Near Lake Tanganyika (Thompson). 



AcJiatina (Limicolaria) caillaudi E. A. SMITH, P. Z. S., 

 1881, p. 284, pi. 33, f. 13. L. spekiana GRANDIDIER, Bull. 

 Soc. Malac. France, ii, 1885, 160. L. c. spekeana MARTS., 

 Beschalte Weichthiere Ost-Afrikas, p. 104. 



52d. Var. GRACILIS Martens. PL 22, figs. 42, 43. 



Small and slender, 50 mm. long, 16 wide, whitish-yellow 

 with numerous dark streaks, only in places angular or in- 

 terrupted. 



Gazelle river region (Schweinfurth). 



A (L ) sennaariensis var. gracilis MARTS., Malak. BL, xvn, 

 1870, p. 34. PFR., Novit. Conch., p. 6, pi. 110, f. 4, 5, copied 



