150 OPEAS, SOUTH AFRICA. 



Opeas durbanense STURANY, Anzeiger K. Akad. Wissensch. 

 Wien, 1898, p. 7; Denkschr. K. Akad. Wissensch. Ixvii, p. 

 597, pi. 2, f. 42-44 (1899). 



A single specimen taken. It seems to be related to 

 0. crawfordi M. & P. 



24. 0. STRIGILIS Melvill & Ponsonby. PI. 15, fig. 79. 



Shell minute, rimate, very slender, tapering-fusiform, crys- 

 talline, of a silvery golden straw color. Whorls 8, the api- 

 cal one nearly immersed, obtuse, the rest delicately and very 

 closely obliquely striate, last whorl lengthened. Aperture 

 narrowly ovate; peristome thin, the columellar margin re- 

 flexed. Length 7.25, diam. 2 mm. (P. & M.}. 



Natal: Karkloof Bush, near Pietermaritzburg ( J. McBean). 



Subulina strigilis M. & P., Ann. and Mag. N. H. (7), viii, 

 p. 318, pi. 2, f. 7 (Oct. 1901). 



"A beautifully striate species, of which we have seen four 

 examples, slightly varying in size, but in all other respects 

 uniformly alike " (M. & P.). 



25. 0. TUGELENSIS (Melvill & Ponsonby). PI. 15, fig. 78. 



Shell attenuate, fusiform, pellucid, rather delicate, very 

 thin, milk-white. Whorls 7, the apical very obtuse, papillate, 

 the rest rather swollen, smooth, the last produced. Aperture 

 oblong, peristome thin, simple; 'columellar margin straight. 

 Length 14, diam. 4 mm. (M. & P.}. 



Natal: Lower Tugela River. 



Subulina tugelensis M. & P., Ann. and Mag. N. H. (6), xix, 

 p. 637, pi. 17, f. 9 (June, 1897). 



' ' An interesting form, more glossy than most of the hither- 

 to recognized South African species, of a beautiful translu- 

 cent milky- white color." 



26. O. MCBEANI Melvill & Ponsonby. PI. 15, fig. 77. 



Shell tapering, fusiform, delicate, subpellucid, pale straw 

 colored, whorls 10, the two apical mamillar, the rest im- 

 pressed at the sutures, rather tumid, longitudinally minutely 

 oblique-striate throughout. Aperture small, the lip thin, 



