620 Records of the Indian Museum. [Vol, VIII, 



Only two specimens obtained, one in the area lat. 28° 15' — 

 29° 15' and long. 94° 20' — 95^^ 10'. There are other species yet to be 

 collected and described judging from the immature shells received. 



Paludomus aborensis, ? n. sp. 



Locality. — Streams near Rotung, only one specimen recorded 

 and that may not be a fully grown shell (5. W . Kemp.) 



Shell elongately conical; sculpture fine, smooth surface with 

 distant lines of growth ; colour pale greenish-yellow with 3 strong 

 bands below periphery of equal breadth in the largest specimen, 

 in a smaller specimen three broad bands of dark madder, the 

 centre one the broadest, on the three apicals they become blended 

 together; spire high, tapering, apex acute; suture shallow; 

 whorls 6, regularly increasing; aperture ovate; peristome thin; 

 (^olumellar margin slightly convex, not much thickened, operculum 

 not preserved. 



Size: major diameter yo, alt. axis ii'5 mm. 



Said to be common in above locality. 



This concludes the record of what is known up to the present 

 of the landshells of the valley of the Brahmaputra both above its 

 debouchement into the plain of Assam and the adjacent country. 

 I have to thank Dr. N. Annandale for placing the museum col- 

 lection in my hands, and again I have to thank all who were 

 instrumental in bringing the collections together. Finally, the 

 saddest task comes now of recording the death of Captain G. F. T. 

 Oakes, RE., of the Indian Survey, on whom falls the credit of 

 collecting a very large number of species. He died a soldier's 

 death on the Western Front at Ovilliers de Boiselle when gallant- 

 ly urging on his men to complete a communication trench. Cap- 

 tain Oakes was a most promising officer in the Survey Depart- 

 ment and when emplo^^ed for two field seasons in the Abor Hills, 

 triangulated and mapped a very large area, carrying his survey 

 some 100 miles up the course of the Brahmaputra, together with 

 its great tributaries the Siyom, Shimang and Yamne. 



His helping hand towards the Zoology of the North-East 

 Frontier as far as the Mollusca is concerned was greater than I 

 ever expected, and given with an earnest desire to help, shown in 

 the many letters I received from him. My great and lasting 

 regret is we never met, the war affecting the coming and going of 

 everybody. 



In bringing the record of the Abor land shells to an end it is 

 satisfactory to feel that the expedition into that part of the East- 

 ern Himalaya had added so very largly to the Molluscan B'auna of 

 India. At the same time it has greatly increased the interest 

 attaching to the distribution of Indian genera and species, as well 

 as to what extent this is bound up with the Geographical and 

 Geological features of the country. My survey work in the Assam 

 Range and in the Eastern Himalaya has given me intimate know- 



