"MoVufica from South Africn. 131 



smootli and slihiiiif^j save ibr a slight sutural rim of fine 

 strise, wliich soon disappears. For the size of tlie shell, the 

 peristomatal processes are unusually well developed. 



On Peltaius, gen. nov. Zonitidarum : Type P. ItuJsoni'ce 

 (Benson). Uy Lt.-Ool. H. H. GoDWiN-AuSTEN, F.R.S. 



I have very recently received for examination from 

 ]yir. John Ponsonby a single minute South-African shell, 

 preserved in spirit, and my best thanks are due to him, for it is 

 an interesting little endodontine form. This has led me to 

 turn again to another larger South- African species he was 

 good enough to send me, I am sorry to say, now many years 

 back. The animals were not in the very best state for 

 dissection, but I made some drawings in the hope of getting 

 better material at some time er other. The shells and slides 

 were put on one side — in truth, I had been puzzled to know 

 in what genus to locate it. I now find, after reference to 

 Mr. John Ponsonby, that in * The Check-list of Non- 

 Marine Mollusca of South Africa ' it is placed in the genus 

 Ilelicarion^ but it cannot be retained there, and had best be 

 separated under the generic name of Peltatus, G.-A. 



Pehatus hudsonice (Benson). 



Locality. Neighbourhood of Port Elizabeth, Cape Colony. 

 Three specimens {^fr. John Ponsonby). 



Shell (PI. VIII. fig. 1) globose, not umbilicated, thin, 

 rather glassy surface, smooth, crossed by transverse lines of 

 growth ; no longitudinal striation under high power. Colour 

 pale horny ; spire deprcssedly conoid ; apex blunt ; suture 

 moderately impressed. Whorls -i, the last much expanded ; 

 aperture semioval, oblique; peristome simple, thin; colu- 

 mellar margin vertical, neither thickened nor reflected. 



Size: nijijor diam. IH, minor 12, alt. axis 7 mm. Largest 

 specimen 1") mm. in major diameter. 



Animal. Has a mucous pore at the extremity of the foot, 

 with a long overhanging pointed lobe. The right neck-lobe 

 is small, the left narrow in front, widening behind ; there is 

 a small tongue-shaped right shell-lobe on the body-side of 

 the aperture, and a small left shell-lobe which in the living 

 animal evidently extends back over the outer margin of the 

 peristome. 



The genitalia (PI. VIII. fig. 1 a). — The penis has a long 

 tajjering kale-sac close to the junction of the vas deferens; 



