MOLLUSCA OF INDIA. 39 



margine dextro subparallelo, marginatum, exhihente, infra cum hasali 

 canalem incisum. ascendentem, extus calloso-marginatum, efformante. 

 Operculo testaceo pauci-sjnraJi , concaviusculo, sutura elevata. 

 " Long. 6, diam. 3| mill. 

 " Hab. ad Moulmein satis frequens. 



" It has some affinity with the Australian species of the genus." 

 Nevill, ' Hand-list,' p. 299, considers this the same as P. blanfordi, 

 Theobald. 



Failing to find the type, the shell I figure is one of four specimens 

 from Moulmain, the typical locality ; it differs from all those I have 

 examined from Pegu iu its greyer colour and greater flatness on the 

 front or apertural side (compare fig. 6 b with figs. 3 b, 2 a, and 4 a). 

 Further 1 have compared seven other Moulmain specimens, No. 28, 

 in Mr. W. T. Blauford's collection ; from all these it is also quite 

 apparent that the channel in the columella is narrower and longer 

 than in the species from the Irrawaddy valley, and I think it very 

 doubtful if anything like the Moulmain form is found there. 



Benson has described the animal of Pupina artata in the Ann. 

 M. N. Hist., August 1859 : — " Foot oblong, the sole being somewhat 

 truncate in front and slightly angled at each side anteriorly, hinder 

 extremity narrowed and pointed ; muzzle declivous, entire ; tenta- 

 cula short, subulate, and swollen all round at the base ; eyes black 

 and prominent, situated on the hinder and external part of the 

 basal swelling. The operculum is rather thick, horny, rounded at 

 the thickened edge, and consists of 4|-5 concave whorls divided by 

 a raised edge. The inner surface has the umbonal region a little 

 elevated. In my first description of the shell I stated that the 

 operculum was calcareous, with few whorls. Dr. Pfeifler, who had 

 the specimen before him, made no alteration in the description, but 

 observed that my characters were abnormal. The paucity of whorls 

 was intended to be comparative with reference to the allied genus 

 Megalomastoma. On taking out the operculum of that specimen its 

 substance appears evidently to be hornj' ; but neither in this species 

 nor in the Khasia P. imbricifera, which has a still thicker horny 

 operculum with a very prominent umbo internally, can it be said to 

 answer Pfeiff'er's generic description of ' membranaceous.' The 

 animal was easily revived in two specimens with the operculum 

 received from Capt. Haughton (Moulmein), and began at once to 

 move about freely and fearlesslj'. No organ corresponding with 

 the slits at the upper or lower part of the aperture can be 

 detected." 



According to Nevill, the species has been found as far south as 

 Perak, where Dr. T. Townsend, of the 3rd Buflfs, collected it at 

 Buket Pondong. I have by me two specimens from the caves of 

 Perak, kindly sent to me by Mr. Aldrich of Cincinnati. They do 

 not agree with my ]^[oulmain specimens, particularly in the form 

 of the notch on the upper angle of the peristome. These I shall 

 refer to in a future Part. 



