136 Lt.-(Jolonel H. H. Godwln-Austeii on 



S-sliape {b) ; the epipliallus is long, and about midway 

 is a short caecum. At the junction ot" the vas deferens 

 there is a rather short thick tiagellum, which contained an 

 immature spermatophore. The spermatheca is globose on a 

 thin stalk, 

 lladula formula: 58 . 2 . 12 . ] . 12 . 2 . 58, or 72 . 1 . 72. 



Helix natalensis, Pfr. 

 SvmboUe, 1846, iii. p. Go. 



Original description : — 



" T. imperforata, subglobosa, tenuis, laevigata, subdiaphana, corneo- 

 albida, lineis fuscis irregulariter radiata, spira elevatiioscula, 

 obtusa ; anfr. 4, vix convexiusculi, ultimus inflatus ; columella 

 subverticalis, filiformis, profunde intraus ; apertura luuato-rotuu- 

 data, iutus fulva, nitida, perist. simplex, acutum. 



•' Diam. 12, alt. 9 mill. 



" Port Natal (Menke). 



" This species is figured by Kiister (Neues Conchyl.- 

 Cabinet, t. xxix. figs. 30, 32)." 



In the Nat. Hist. Museum are four specimens under this 

 name (precise locality not given, only S. Africa), presented 

 by J. 11. Ponsonby in 1888. There is this note in pencil : 

 " Compared by Dohrn with PfeifFer's type." The largest 

 measures 15 mm. in major diameter, alt. axis 8i. It shows 

 narrow transverse bauds of colour alternating pale and dark. 

 The apical whorls are strongly decussate under high ])Ovver. 

 Its form is well represented in Kiister's figures, and the 

 striping even indicated. 



Peltatus natalensis, Pfr. (PI. III. figs. 2, 2 a ; 

 PI. VI. fig. 2.) 



Locality/. Port Elizabeth. 



The animal (PI, III. figs. 2, 2 a) is pale-coloured. The 

 foot has a small overhanging lobe above the mucous pore, no 

 doubt elevated when alive; the oblique grooves on the side 

 of the foot running from the peripodial grooves to the dorsal 

 line of the foot are close together, the margin is rather broad. 

 The right shell-lobe (PI. III. fig. 2) is long and narrow on 

 the side of the right dorsal lobe. The left shell-lobe (PI. III. 

 fig. 2 a) is also narrow, but very short. The left dorsal lobe 

 is in two parts, the posterior being long and narrow. The 

 visceral sac next the mantle-margin is closely speckled with 

 pure white, and the same colour predominates along the line 

 of the rectum up to the kidney and, with more or less 

 mottling, continues to the very apex. At the generative 

 aperture (PI. VI. fig. 2) there is an ample bulbous vestibule. 



