362 Dr. A. Giinther on (6) V. MARTKN8. — " Ueber einige ostasiatische Siisswasserthiere," Arcbiv f. Naturgeschichte, toI. xxxiv. 1868, p, 47. (7) MiEES, — " Malaysian Crustacea," Ann. & Mag. Nat. Hist. ser. 5, Yol. V. 1880, p. 382, pi. XV. figs. 3 and 4. (8) Spence Bate. — " Crustacea Macrura," ' Challenger ' Reports, vol. xxiv. pp. C91-702, pis. cxviii.-cxx. EXPLANATION OF PLATES XIII. & XIV. Fiff. 1. Att/a Wyckii, X 5 diameters. Fig. 2. The same, natural size. Fi</. 3. Mandible, a, molar process ; b, edge, beaiing a few coarse fea-thered hairs ; c, edge, bearing numerous fine hairs ; d, tritura-ting surface. Fig. 4. First maxilla, end., endopodite. Fig, 5. Second maxilla, a, protopodite ; b, anterior end of scaphogna-thite ; c, posterior end of scaphoguathite bearing long hooked hairs. F^f. 6. First maxillipede. Fig. 7. Second maxillipede. a, endopodite ; b, exopodite ; c, podobranch; d, mar-tigobrauch. Fig. 8. Third maxillipede. a, endopodite ; 6, exopodite ; c, rudimentary mastigobiauch ; d, arthrobranch. Fig. 9. First pereiopod. d, mastigobranch. Fig. 10. Second pereiopod. d, mastigobranch. Fig. 11. Third pereiopod. Fig. 12. Chela of first pereiopod, showing the tenuinal hooks and brushes. Fig. 13. Chela of second pereiopod. Fig. 14. One of the hairs of the terminal brushes of a chela, showing the recurved hooks with which it is piovided. (I am indebted for figs. 1 and 2 to the skill and accuracy of my sister, Miss A. W. Hicksou.) XLVIII. — Notes on Reptiles and Frogs from Dominica^ West Indies. By Dr. A. GiJNTHEE, F.R.S., Keeper of the Department of Zoology, British Museum. T"WO small collections made in tlie island of Dominica by Mr. Eamfige, a gentleman engaged by the West-Indies Ex-ploration Committee, contain a very interesting series of the reptiles and frogs of that island. Mr. Ramage has been working in the island for a short period only, so that we may expect further additions to this present list, which consists of five species of lizards, three of snakes, and two of frogs. Of particular interest would be observations on the mode of propagation of the Hylodes.