Reference List of South African Non-marine Mollusca. 153 
over, but in no way concealing the umbilicus, before rejoining the 
base of the shell. 
Diam. max. 28, min. 21°5; alt. 16 mm. Apert. 16x11 mm. 
Distance between angle of columellar margin and its junction with 
base of shell, 2°5 mm. 
Genus TRIGONEPHRUS, Pilsbry, 1905. 
(Proc. Mal. Soc. vi. p. 286.) 
Type of Genus, 7. globulus (Miill.). 
288, TRIGONEPHRUS COAGULUM (von Martens). 
1889 Helix coagulum, von Mts., Sitz.-Ber.Ges.Nat.Fr. Berlin, p.160. D. 
1894 ‘ », Conch. Mitth. iii, 3. p.3. D. 
1897 ef », Archiv. f. Naturg. lxiii, 1. p. 37. pl. 7, 
f. 11-14. D.F. 
Type in Zool. Mus. Berlin. 
Hab. Great Namatanp. On the road from Aos to the Orange 
River, and near the Lower Orange River (Schenck). 
289. TRIGONEPHRUS GLOBULUS (Miiller). [S.A.M.] 
1774 Helix globulus, Mill., Verm. ii. p. 68. D. 
80" y 4 2. », Chem., Conch. Cab. ix, 2. p. 126. pl. 130, 
£m 595,605 wee Deke. 
»» pomatia, var., Chem., Conch. Cab. ix, 2. pl. 130, £. 1138. #. 
1788 —,,_~— globulus, Miill., Gmel., Syst. Nat., Ed. 13.i, 6. p. 3629. D. 
ike) fae sy » Dillw., Deser. Cat. ii. p. 923. D. 
1822 ,, =~ ducana, ‘‘ Mill.,” Lam., Hist. nat. An.s. Vert. Vi, 2.p, tl, D. 
TSB Se! 1%, A Desh., Hist. nat. An.s. Vert. viii. Dit. 2D: 
GEE eg: aatiluae Mill, Pfr., Conch. Cab. p. 33. pl.3,f.11,12. ?D.F. 
£46". 3 AS », (cum var. rosacea, Miill.), Pfr., Conch. 
Caib. spe xii, DUN, 
1848 sez, ss »» (=lucana, Lam., and rosacea, Mill.), Krs., 
Siidafr. Moll. p. 77. N. 
x - = etry Mon. Heligpao lo: 2: 
», (cum var. rosacea, Miill.), Bs., A.M.N.H. y. 
ps ALi WN: 
= e n », (=7osacea), Desh., Hist. nat. Moll. ji. 
p. 250. pl. 26, f. 10-12. pl.28,f.11,12. D.F. 
1591 _.,, , », Rve., Conch, Icon. pl. 41, f. 186. D.F. 
1859. —,, : ,, Pir., Mon. Hel. iv. p. 249. D. 
