THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[EIGHTH SERIES.] 

 No. 2. FEBRUARY 190S. 



XX. — Descriptions of Nine Terrestrial Mollusca fi-om 

 South Africa. 13y Jaimes Cosmo Melvill, M.A., F.L.S., 

 and John Henry Ponsonby, F.Z.S. Includiruj Anatomi- 

 cal Descriptions of Two proposed new Genera (Afrodonta, 

 M. & P., and Pelfcatus, G.-A.), by Lt.-Col. H. H. 

 Godwin-Austen, F.R.S. 



[Plates VII. & VIIL] 



During the past year a good many interesting forms of 

 land-mollusks have been submitted to us by various corre- 

 spondents, notably ]\Ir. IT. C, Buriiiip, enabling us to offer a 

 further (the twentieth) paper on this extensive and varied 

 fauna. 



As might, perhaps, have been expected, a h\v fresh 

 Ennece have thus come under our notice, and, amongst the 

 Hclicoids, two very extraordinary, though minute species, 

 both nearly allied, for which it apiJcars necessary to ])ropound 

 a new genus (Afrodonta). Col. II. II. Godwin-Austen, 

 F.R.S., with his customary kindness, has examined the 

 anatomical details and allowed us to incorporate the results of 

 his investigations in the following pages. The family 

 Endodontida*, to which they both belong, has not, till now, 

 been known in this region, excejiting in the form of the 

 simple-mouthed Phasis, Albers, and Trachycystis, Pilsbry. 



Col. Godwin-Austen has likewise requested us to include 

 in this paper his description of Pe/tatus, gen. nov., proposed 

 for '^ IJelix" hudsoni(v, Benson*, a not uncommon, but 

 variable mollusk, with peculiar anatomical organization f. 



* Auu. & Mag. Nat. Hist. ser. 3, vol. xiii. (18G4) p. -493. 



t Op. at. ser. G, vol. vi. (1890) p. 467. 

 Anil, d: Mag. N. I list. Ser. 8, Vol. i. D 



