222 Certain Terrestrial Pulmo7iata 



Pupa, sulcata., Mulleu {Gonidomus). 



Lingual membrane long and veiy narrow. Eows of teeth arranged en 

 chevron. Teeth separated, aculeate, as in Fupa palanya Lesson, photo- 

 graphed by us (Amer. Jour. Conch. V, pi. xr, tig. 1.) 



We obtained no jaw on boiling the bnccal mass in a solu- 

 tion of caustic potash. 



This species belongs to the genus Gonosijnra, in which 

 P. palanga was placed hy Crosse and Fischer (Journal de 

 Conch. IX, 213 (1869), pi. xi, figs. 6-8). 



The specimen examined, sent from Mauritius by Consul 

 Pike, was kindly supplied by Mr. John G. Anthony. 



BtiBiBBiisas aiilacostyliss, Pfr. {Eurytus). 



Lingual membrane as usual in the genus, the marginal teeth simply 

 modified from the laterals. 



Jaw slightly arcuate, membranous, almost transparent, in one single 

 piece, but divided by delicate ribs into more tliau sixty plate-like sections, 

 as common in the genera BuUmulus, CijUndrella, etc. No upper median 

 triangular plate, but the ribs run somewhat obliquely to the centre. 



We are indebted for this specimen from St. Lucia, and 

 for the following from St. Vincent, to Governor Rawson. 



Kuliinus aiiris-sil^iai, Born {Felecychilus). 



Jaw and lingual membrane as in the last species. The middle cusp of 

 the central teeth and inner cusp of the lateral teeth long, acute. 



The jaw of this and the preceding species do not agree 

 with the generic description of von Martens " costis validis 

 exarata," but are like that of Bulimulus. This f ict gives 

 still more proof of the difficulty of classifying the Bulimi 

 by their jaw, at the present stage of our knowledge of the 

 Subject, as already remarked by Fischer (Jour, de Conch. 

 Xli, 295, 1872). 



