new Mollusca from South Africa. 317 



A very graceful glassy species, separable at a glance from 

 its South-African congeners. The shell is quite smooth, 

 eleven-whorled, the whorls impressed at the sutures and 

 gradually increasing, last whorl a little produced ; mouth 

 small, ovate, lip thin. 



Six specimens. 



Suhulina glaucocyanea^ sp. n. (PI. XVI. Hg. 5.) 



S. lesta fusiformi, cornea, caerulescente, pariim nitida ; anfractibus 

 10-11, paullum planatis, obscure striatis, striis fere rectis ; aper- 

 tura ovato-oblonga ; pcristomate extua tenui, marginem apud 

 columellarem retlexo, recto. 



Long. 22 (sp. maj.), lat. 5 mm. 



Hah. Port Elizabeth. 



Allied, doubtless, closely to 6'. turriformis^ Krauss, the 

 commonest and best-known South-African species, but 

 differing in the following particulars : — (a) greater size ; 

 [h) texture, being more transparently corneous ; (c) colour, a 

 livid glaucous blue ; and (c?) lastly in the whorls being less 

 impressed at the sutures. 



Many specimens, some of them young shells, all similar in 

 colour, form, and texture. 



Pu2)a amphodon, sp. n. (PI. XVI. figs. 6, 7.) 



P. testa minuta, superficialiter umbilicata, dolioliformi, brunnes- 

 cente, apice obtuso ; anfractibus septem, quorum duobua apicali- 

 bus, cseteris ventricosulis, longitudinaliter indistincte obliqui- 

 striatis, anlractu ultimo apud ba.-iii paullum producto ; apertura 

 lunata ; peristomate rotuudo, incrassato, reflexo, intus plicis vel 

 dentibus 5 instructo ; dente parietali magno, recto ; labiali ex- 

 tenso, scaleno-triangulari, duobus basalibus, hoc bimamillato, illo, 

 juxta columellam, obtuso, lato ; dente coliimellari brevi, mamil- 

 lato. 



Long. 8, lat. 1'15 mm. 



Uah. Zwartkops, near Port Elizabeth. 



A small cylindrical species of the ^\fontana" group. In 

 many ways it approaches P. frustiUum^ .M. & P., but differs 

 entirely in the labial tooth-processes. It is subrimate, with 

 seven whorls, two of tliem being apical, the apex itself 

 extremely obtuse; whorls slightly ventricose and indistinctly 

 longitudinally striate ; mouth lunar ; peristome round, fur- 

 nished with five processes, which well nigh close the orifice. 

 The parietal tooth is the most conspicuous of these and is 

 straight and produced, the labial is broadly triangular, the 



