1906.] MR. K. SHELPORD ON '' FLYING " SNAKES. 227 



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

 Malay Peninsula and E. mtdtidentata Weltner from Queenslanrl, 

 resemble in many respects E. plumosa, but differ in being devoid 

 of flesh-spicules. 



EXPLANATION OF THE PLATES. 

 Plate XV. 



Fia:. 1. S-ponfflUa carteri Bowerbauk (p. 219), from Victoria Nyanza, surface. X 2. 



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



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



4. Oxea of S. carteri, from Mauritius. X 210. 



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



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



spongin-iibres showing through. X 25. 



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



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



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



and enclosing granular matter. X 44. 



9. Spongilla moorei, gemmule. X 25. 



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

 gylate, X 425. 



Plate XVI. 



Fig. 1. Spongilla cunningtoni, 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. Strongyle, 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-strongyles. X 700. 



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



7. Vertical section. X 44. 



8. Strongyle. X 210. 



9. Oxea. X 210. 



10. Amphidisk flesh-spicules. X 700. 



11. JEphydatia pliimosa Carter, var. brouni, nov. var. (p. 226), speciiiien. X 2. 



12. Ephydatia plumosa var. brouni, amphidisk. X 700. 



13. Substellate microscleres of JE. plumosa var. brouni. X 700. 



14. ISphydatia plumosa, from Bombay (type), amphidisk. X 700. 



5. A Note on '^Flying'' Snakes. 

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



[Received March 6, 1906.] 



(Text-figures 56 & 57.) 



A large number of the Snakes of Borneo are almost entirely 

 arboreal 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 well-known ; and 



Proc. Zool. See— 1906, Yol. I. No. XVI. 16 



