BY C. F. ANCEY. 777 



SucciNEA SCALARINA, Pfeijfer. — Lennard River, 100 mi^es 

 inland from Derby, W. Australia. 



ViviPARA DECiPiENS, Tapp.-Gan. — Two specimens said by Mr. 

 Froggatt to have been taken by him in the Lennard River with 

 the following species, but this may prove to be a mistake, as both 

 are described from shells collected in the Fly River, British New 

 Guinea, where Mr. Froggatt also probably found his specimens. 



YiviPARA (Glaucostracia) Paulucciana, Tapp.-Can. — This is 

 a very remarkable species of Vivipara. Of the two specimens 

 sent one contained the operculum, and in the last whorl there 

 were two young globular and naticoid shells, very thin, spirally 

 striate, consisting of about 3 whorls and keeled above the peri- 

 phery; hence it may be inferred that Vivipara Faulucciana is 

 viviparous like the typical forms ; the operculum, of a reddish- 

 purple hue, is not dissimilar from that of the ordinary species; 

 however the shell differs very much in its Lacuyioid shape, keeled 

 umbilical area and umbilicus from that of typical Vivipara, and 

 forcibly reminds one of the Indo-Chinese genus Chlorostracia, 

 Mab.,* which, however, belongs to another family, and I should 

 suggest for it the subgeneric name Glaucostracia. 



Plotia pagoda, Lea. — Fly River. 



Pythia nov.sp. 1 — Fly River. Probably a new species, although 

 I have a specimen similar to the two found by Mr. Froggatt, 

 and also from the Fly River, labelled Pythia undata, Lesson. 

 The present shell is imperforate and allied to Pythia ohscura and 

 latidentata, of Tapparone-Canefri (Fauna Malac. della Nuova 

 Guinea, Suppl. I. p. 48-50, PI. i. fig. 14-15 and 12), thus falling 

 into the group B of T. Canefri, but it differs much from these as 

 well as from P. Wallacei and imperforata, also recoixled from 

 Papua. It is a rather broad shell with a yellowish peristome and 

 furnished with peculiar small denticles seeming to be constant 

 between the larger ones on the palatal lamina. 



* Mabille, in Bull. Soc. Malac. France, vi. Juin, 1889, p. 309-314, with 



PI. VIII. 



