134 



CHARACTERS OF THREE NEW SPECIES OF ENNEA FROM 

 SOUTHERN NIGERIA. 



By H. B. Preston, F.Z.S. 



Bead 13th March, 1914. 



The species described in the present paper have been kindly handed 

 to the author for examination by Major A. J. Peile, R. A., who writes 

 that they were "found by Lieut. L. Rees, R.A., serving with the 

 Lower Nigerian Begiment, when clearing a village about 50 feet 

 above the sui'rounding swamps ; the shells were lying in the open". 

 The actual locality is Ouolia (marked as Lokar on the map), and is 

 approximately situated in latitude 4° 45' N. and longitude 7° 10' E. 

 Having duly searched all the available, though somewhat scanty, 

 literature on the region, th.e author has come to the conclusion that 

 they have hitherto escaped notice, hence the diagnoses given below. 



Ennea peilei, n.sp. 



Shell perforate, cylindrically ovate, yellowish-white ; whorls 8, the 

 first six regularly increasing in length and breadth, the seventh 

 increasing in length, but not in breadth, the eighth also increasing in 

 length, but very slightly diminishing in breadth, the apical whorls 

 smooth, the remainder sculptured with moderately closely-set and 

 rather oblique, transverse costulse, the last whorl bistrangulate nearly 

 throughout its latter half; suture well impressed, umbilicus extremely 

 narrow ; columella-margin descending in a curve ; labrum white, 

 outwardly reflexed, granular in texture, the converging margins 



united by an outwardly spreading, but well-defined, granular, parietal 

 callus ; aperture somewhat laterally set, sub-quadrate, armed with a 

 weak parietal lamella situated near the junction of the outer lip with 

 the parietal wall, an also somewhat weak projection on the inner 

 margin of the outer lip, and two very interiorly situate, entering 

 ridges corresponding to the strangulations visible on the outside of the 

 shell. Alt. 4'75, diam. maj. 2 5 mm. Aperture : alt. 1, diam. -5 mm. 

 Ifab. — Onoha or Lokar, Opobo District, S. Nigeria (Lieut. L. 

 Rees, R.A.). 



