1906.] MR. R. SHELPORD ON " PLYING" SNAKES. 227 



Two species of Ephydatia, viz. E. blembingia Evans from the 

 Malay Peninsula and E. multidentata Weltner from Queensland, 

 resemble in many respects E. plimiosa, but diflei- in being devoid 

 of flesh-spicules. 



EXPLAJSTATION OF THE PLATES. 

 Plate XV. 



Pig. 1. Spongilla carteri Bowerbauk (p. 219), from Victoria Nj'anza, surface. X 2. 



2. Oxea of S. carteri, from Victoria Nyaiiza. X 210. 



3. Oxea of S. carteri, from Bombay. X 210. 



4. Oxea of S. carteri, from Mam-itius. X 210. 



5. Spongilla moorei Evans (p. 219), surface. X 44. 



6. Spongilla moorei, under surface of basal spongiu-lamella, with bases of 



spougin-fibres showing through. X 25. 



7. Spongilla moorei, basal part of skeleton showing spongin-fibres with spicular 



core arising from detached portions of basal lamella. X 44. 



8. Spongilla moorei, irregular mass of spongin with sijicules partly embedded 



and enclosing granular matter. X 44. 



9. Spongilla moorei, gemmule. X 25. 



10. Spongilla tanganyilcce Evans (p. 221), spicule partly tornote, partly stron- 

 gylate, X 425. 



Plate XVI. 



Fig. 1. Spongilla cimningtoni, sp. n. (p. 221). X 2. 



2. Surface of the same. X 100. 



3. Vertical section. X 100. 



4. Basal spongin-lamella and fibres. X 160. 



5. Strongyle. X 425. 



6. Strongjde, long smooth kind. X 425. 



Plate XVII. 



Fig. 1. Spongilla rousseletii, sp. n. (p. 223), section. X 44. 



2. Gemmule of same. X 44. 



3. Oxea. X 210. 



4. 5. Micro-strougyles. X 700. 



6. Spongilla? zamhesiana, sp. n. (p. 225). Nat. size. 



7. Vertical section. X 44. 



8. Strongjde. X 210. 



9. Oxea. X 210. 



10. Amphidisk flesh-spicules. X 700. 



11. JSphydatia pliimosa Carter, var. hrouni, nov. var. (p. 22G), speci.nen. X 2. 



12. JSpliydatiaplumosaYa.Y.broiini,a.\n-p\\i(}i\sk. X 700. 



13. Substellate microscleres of E. phimosa var. hrouni. X 700. 



14. EpJit/datia plumosa, from Bombay (type) , amphidisk. X 700, 



5. A Note on "Flying" Snakes. 

 By Pt. Shelford, M.A., C.M.Z.S. 



[Received March 6, 1906.] 



(Text-figures 56 t 57.) 



A large number of the Snakes of Borneo are almost entirely 

 ai-boreal in their habits, spending much of their life in the 

 branches of lofty trees and feeding on birds, birds' eggs, and 

 tree-haunting lizards, such as Ccdotes versicolor and some of the 

 geckos. That snakes can climb tree-trunks is Avell-known ; and 



Proc. Zool, Soc— 1906, Vol. I. No, XVI. 16 



