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Show 1906.] MR. R. SHELFORD ON " FLYING" 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. plumosa, but differ in being devoid of flesh-spicules. EXPLANATION OF THE PLATES. PLATE XV. Fig. 1. Spongilla carteri Bowerbank (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-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. Spongillh moorei, irregular mass of spongin with spicules partly embedded and enclosing granular matter. X 44. 9. Spongilla moorei, gemmule. X 25. 10. Spongilla tanganyikce 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? zambesiana, sp. n. (p. 225). Nat. size. 7. Vertical section. X 44. 8. Strongyle. X 210. 9. Oxea. X 210. 10. Amphidisk flesh-spicules. X 700. 11. Ephydatia plumosa Carter, var. brouni, nov. var. (p. 226), specimen. X 2. 12. Ephydatia plumosa var. brouni, amphidisk. X 700. 13. Substellate microscleres of E. plumosa var. brouni. X 700. 14. Ephydatia plumosa, from Bombay (type), amphidisk. X 700. 5. A Note on " Flying" Snakes. By R. 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. Soc-1906, V O L . I. No. XVI. 16 |