140 PROCEEDINGS OF THE MALACOI.OGICAL SOCIETY. 



Found with M. mix, from which it may be readily distinguished 

 by its colouration and the difference in the relative proportions of 

 height and breadth. 



3. Trochonanina platysoma, n.sp. PI. XIII, Figs. 16 and 17. 



Testa perdepresso-conica, rimata, costulis obscuris rugiformibus 

 irregulariter notata, apice acutulo ; anfractus 5, regulariter lenteipie 

 crescentes, ultimus acute carinatus, basi subinflatus; apertura securi- 

 formis, marginibus acutis, callo tenui junctis. Alt. 2-5, diani. max. 

 7'5 mm. 



Hah. — Norfolk Island, on and under dead leaves (coll. Brit. Mus.). 



A lovely little species, very depressed and acutely carinated, the 

 carina being roughened by the terminations of the costse, which are 

 flattened but well marked. 



Fretum, nom. nov. 

 Eurypus, Semper, nee Kirby. 

 Aulacopus, Pfeffer, nee Serv. (Coleoptera). 



The radula of the species dissected by Mr. Suter (now described 

 as F Suteri) appears to agree well with that of Eurypus, Semper, as 

 figured in his " Reisen im Arch. Philippinen." Unfortunately the 

 name is preoccupied, and since I am unable to ascertain that it has 

 been previously altered, 1 now venture to replace it, taking as the 

 type Semper's own, namely, E. casca (Gould). 



4. Fretum Phtllipii (Gray). 



Helix Phillipii, Gray : Proo. Zool. Soc, 1834, p. 65 ; Peeve, Conch. 

 Icon., Helix, sp. 1443. 



Hah. — Phillip Island (Gray). 



Only known to me from the type shells described by Gray ; the 

 green spotting mentioned by Gray and Peeve appears to be due to 

 specks of dirt inside the shell. 



5. Fretum Suteri, n.sp. PI. XIII, Figs. 10 and 11. 



Testa depresso-turbinata, solidiuscula, lineis incrementi bene notata, 

 nitidula, cornea, zona paliidiore ad peripheriam ornata ; anfractus 5, 

 convexiusculi, regulariter lenteque crescentes, ultimus compactus, 

 basi iinpressus, sutura filiformis bene impressa; apertura ovato-lunaris, 

 margine dextro acuto, columellari versus umbiheum expansiusculo, 

 reflexo incrassato. Alt. 8-8, diam. max. 12mm. 



Hah —Norfolk Island (coll. H. Suter). 



A single specimen of a compact, horn - coloured shell. From 

 F Phillipii it may be distinguished by the deeper suture and more 

 elevated form ; the sculpture is also more marked. From the next 

 species, F. Grayi, it may be separated by the difference in shape, and 

 also by the absence of any brown band. 



The following notes were kindly sent me by Mr. Suter, with 

 permission to incorporate them : — " The only specimen of this species, 

 collected by Mr. Laing, of Christchurch, New Zealand, fortunately 



