94 Mr. W. Warren on new 



Fig. 8. Amphidromus filozonatus, vax.jucunda. B.M. 



Fig. 9. moniliferus. B.M. 



Fig. 10. Martensi. B.M. 



Fig. 11. Mouhoti. B.M. 



Figs. 12, 12 a. Smithii. 



Note. — All the specimens on Plates V.-VII. marked B.M. are in the 

 collection of the British Museum, the remainder are in my own collec- 

 tion. 



XII. — Description of a new Species o/Opisthostoma. 

 By G. B. Sowerby, F.L.S., F.Z.S. 



In the ' Annals & Magazine of Natural History,' October 

 1894, Mr. E. A. Smith gave a list of the Bornean species of 

 this curious and interesting little genus of terrestrial 

 Mollusca. Including four new species then described, the 

 total number was fifteen, of which all but two have been 

 discovered within the last five or six years. I have now a 

 new species to add to the list, which I propose to call 



Opisthostoma Linterce. 



Testa ovato-conica, elata, rufescens vel alba, anguste perforata; 

 spira leviter convexa ; anfractus 7, convexi, apicales laeves, ca?teri 

 lamellis numerosis tenuissimis pellucidis undulatis in medio plus 

 minusve productis instructi ; anfractus ultimus versus aperturam 

 valde contortus, retrorsus et solutus, lamellis antice productis, 

 cristam basalem formans ; apertura circularis ; peristoma leviter 

 reflexum, extus lamella tenuis, expansa, antice et postice producta 

 marginata. 



Alt. 4, diam. maj. 4, min. 2. 



Hah. Sarawak. 



This pretty species will best be recognized by a com- 

 parison with 0. puhhellum of Godwin-Austen, to which in 

 many respects it is similar. It is decidedly higher in the 

 spire, the whorls are less distinctly angular, and the contorted 

 whorl descends much more abruptly and deeply. 



XIII. — New Genera and Species of Pyralida3, Thyridida^ and 

 Epiplemidas. By W. Warren, M.A., F.E.S. 



[Continued from vol. xvi. p. 477.] 



Macrospectrodes, gen. nov. 



Fore wings elongate ; costa straight till shortly before 

 apex, which is prominent but blunt ; hind margin decidedly 

 oblique, faintly curved. Hind wings broad, with rounded 



