154 Annals of the South African Museum. 



1879 Helix globulus, Mull., Binn., Ann. N.Y. Acad. Soi.i.p.361.pl. 14, 



f. K. E. 



1880 globosus Crvn., P.Z.S. p. 619. (Err. typ.) N. 

 1884 Dorcasia globulus, Miill., Binn., Ann. N.Y. Acad. Sci. iii. p. 106. 



pi. 6, f. M. E. 

 1887 Helix (Dorcasia) globulus, Miill., Tryon, Man. of Conch, iii. 



p. 213. pi. 49, f. 1. D.F. 

 1889 globulus, Mull., von Mts., Sitz.-Ber. Ges. Nat. Fr. Berlin, 



p. 160. N. 

 1895 Dorcasia globulus, Miill. , Pilsb., Man. of Conch, ix. pp. 172, 173. 



pi. 38, f. 8. N.F. pi. 51, f. 3. E. 

 1905 TrigonepTvrus globulus, Miill., Pilsb., Proc. Mai. Soc. vi. p. 286. 



pi. 13, f. 6-9. pi. 14, f. 13, 15. A. 



1910 Helix (Trigonephrus) globulus, Miill., Bfctg., Abh. Senckenb. 

 Naturf . Ges. Frankfurt, xxxii. pp. 440, 441. N. 



Original in University Zool. Mus. Copenhagen. 



Hob. CAPE OF GOOD HOPE. Widely distributed along the coast- 

 line from Algoa Bay, westward round the Cape Peninsula, and 

 thence northward as far as Port Nolloth. Eobben and Dassen 

 Islands. 



Craven collected on Eobben Island a fully developed sinistral 

 specimen, which is now in the British Museum. 



There is a very wide range of variety in this species. Krauss 

 brought into the synonymy H. rosacea, Miill., and many later 

 authorities have followed his example ; in fact, until more is 

 known of the animals, it is not possible to decide whether all 

 species of Trigonephrus, hitherto described, are not merely forms 

 of globulus. 



Much confusion existed among the early authors with regard to 

 it. Chemnitz (1786) figured H. semirugata, Beck, from Ceylon as 

 globulus, while Lamarck (1822) described semirugata as globulus and 

 globulus as lucana. H. globulus, Lam., of Deshayes' earlier writings 

 is also semirugata, and his lucana, globulus, Mull., an error corrected 

 in Hist. nat. Moll., 1850. 



290. TRIGONEPHRUS GYPSINUS (Melv. & Pons.). [S.A.M.] 



1891 Helix (Dorcasia) gypsina, M. & P., A.M.N.H. viii. p. 238. D. 



1892 ,, ix. p. 94. pi. 4, 



f. 10. F. 



1893 ,, ,, Pilsb., Man. of Conch, viii. 



p. 262. pi. 28, f. 2. D.F. 

 Type in British Museum . 



