Reference List of South African Non-marine Mollusca. 97 



covered with very faint, regular, curved stride, which are still fainter 

 on the under side. Suture simple, shallow. Aperture nearly circular, 

 descending a little in front. Peristome thin, simple, receding sharply 

 in profile from above. Columella very weak, concave, without marginal 

 reflexion. 



Diam. maj. 8, min. 7; alt. 3*3 ; apert. alt. 3-2, lat. 3*7 mm. 



Eadular formula 12 + + 12 x 35. 



Type in British Museum. 



Hab. CAPE PENINSULA (generally distributed). 



This little species has been known for fifty years, but has been 

 generally misidentified as vernicosa, Krauss, or bullacea, Pfr., under 

 one of which names it appears in many museum and private collec- 

 tions. It is a far smaller form than vernicosa, with the type of 

 which I have compared it, while bullacea is an Australian species, 

 non-existent in South Africa. N. vernicosa, var. minor, Pfr., from 

 Natal, which I have not seen, may be near akin to tarachodes, but, 

 if so, is worthy of specific rank. 



133. NATALINA TRIMENI (Melv. & Pons.). [S.A.M.] 



1892 Helix (Aerope) trimeni, M. & P., A.M.N.H. x. p. 237. pi. 13, 



f. 1. D.F. 



1893 Natalina tremeni, M. & P., Pilsb., Man. of Conch, viii. p. 135. 



(Err. typ.} 



1895 trimeni, M. & P., Pace., Proc. Mai. Soc.i. p. 232. A.E. 

 1903 Rlmjtida (Afrorhytida) trimeni, M. & P., Mlldff., Conch. Cab. 



p. 62. pi. 11, f. 3. D.F. 

 Type in British Museum. 

 Hab. " S. AFRICA " (Trimen). 



CAPE OF GOOD HOPE. Somerset East (Miss Bowker). Grahams- 

 town ; Cradock (Farquhar). Kowie, Port Alfred (Crawford). Wit- 

 moss (Keeve), 



134. NATALINA VERNICOSA (Krauss). 



1848 Helix vernicosa, Krs., Siidafr. Moll. p. 76. pi. 4, f. 23. D.F. 



Pfr., Zeitschr. f. Malak. v. p. 93. D. 



1850 Bs., A.M.N.H. vi. p. 254. N. 



1851 ,, ,, Eve., Couch. Icon. pi. 43, f. 198. D.F. 

 1853 ,, Pfr., Mon. Hel. iii. p. 95. D. 



1879 Rhytida vernicosa, Krs., Binn., Ann. N.Y. Acad. Sci. i. p. 355. 



pi. 14, f. I. R. 



