182 LAND AND FRESHWATER 



lu the generative organs only the penis was made out, and proved 

 not to be like that of typical Macrochla7iii/s. The retractor-muscle 

 attachment is at the bend, the epiphallus short, a long kalc-suc : it 

 is thus like true resplendens of Mergui. 



The jaw has a central projection. The formula of the radula is 



48 . 2 . 16 . 1 . 16 . 2 . 48 

 or 66 . 1 . 66. 



Central tooth tricuspid, admedian with one outer cusp ; laterals 

 bicuspid, point of outer slightly below the inner. 



The figure of Nanina resplendens^ Phil., var. obesior, plate 12. 

 fig. 6, in ' Die Preussische Expedition nach Ost-Asien,' also the 

 shell figured in this work. Vol. I. Plato XXVI. fig. 3, as M. re- 

 splendens, from Siam, are very close to the species which Blanford 

 determined as pumicata. 



In a paper by Mr. Walter E. Collinge " On the Collections made 

 by Members of the ' Skeat Expedition ' in the Malay Peninsula, 

 1899-1900," Journ. Malacol. 1902, vol. ix. pp. 73-77, a single 

 specimen of Macrochlamiis resplendens was obtained at Penang, 

 which extends its distribution very much further to the south. Tlie 

 determination was made by Mr. Edgar Smith, who mentions a 

 specimen in the Museum from King Island, Mergui Archipelago. 

 This specimen would be a typical one. 



Considerable interest is attached to the following species. Over 

 twenty years ago I soaked out a dried-up animal I had found in 

 one of the shells of a large Dafla Hill Macrochlami/s-like form, one 

 of which I had at first (1879) identified erroneously as luhrica, a 

 Darjiling species the anatomy of which was also then unknown. 

 The generative organs were not in that complete state I could have 

 wished, and they were so very different from any I had at that 

 time seen, I put the drawings by, trusting I might get better 

 material to work on from that part of India ; but in that hope I 

 was disappointed. Quite recently (July 1906), on going over these 

 Dafla shells, I discovered another dried-up animal, which, after 

 soaking for a month, I have been able to examine and was surprised 

 at the perfect state of its preservation. The outer integument was 

 as tough as the day it was taken, the colour unchanged. 



The shell of this species is another instance of how shell-character 

 may be misleading in classification. So like is it to many species 

 of true MacroeJdami/s, any conchologist would place it in that 

 genus. I did so myself provisionally on Plate XXI. fig. 6 of this 

 work in January ls83, under the title M. dajlaensis. 



The very first time I took this species alive I noticed the absence 

 of the mucous gland at the extremity of the foot and made a 

 careful drawing of it in my note-book, which I now reproduce. In 



