32 MR. L. A. BORRADAILB OX CRUSTACEANS [Jan. 18, EXPLANATION OF THE PLATES. Plate III. Fig. 1. Cic/ius velox, p. lo, J. Abdoiuen, ventral area. 2. Cfenus velo.v, $ . Vulva. 3. Ctenus btirtotii, p. 2.5, c5". a. Tibial spur of palpus, h. Do., latersl view. e. Tarsus of palpus, showing hasal cusp. d. Tavsus and palpal organs, e. Palpal organs enlarged. /. Eyes from in front. 4. Ctenus carsoiii, p. 24, J. a. Eyes from in front. b. Tarsus of palpus from beneath. 5. Ctemis curfoni. Spur of left tibia of palpus, a. From outside, i. Spur enlarged, c. From beneath. 6. Ctenuss kingslcyi, -p. '2\, J. Vulva. 7. Ctenus johnstoni, p. 21, j-Vulva. 8. Ctenus occidentalis, p. 22, $ . Vulva. 9. Ctevus spenceri, p. 23, $. Vulva, 10. Ctenus spenceri, (^ . Tibia of palpus and base of tarsus, showing short spur. 11. Ctenus corniffer, p. 26, c? • Tibia of palpus and base of tarsus, showing short spur. Plate IV. Fig. I. Thalassius spenceri, p. 29, ^ . a. Eyes from in front, h. Vulva. 2. Thalassius nnico/or, p. 29, j . Vulva. 3. Thalassius cummingi, p. 2M, ^. Vulva. 4. Thalassius jayaJcari, p. oO, $. Vulva. 5. Thalassius phipsoni, p. 31, 2. Vulva. 6. Dolopaiis cinctus, p. 28, J. Eyes from in front. 7. Dolopmus cinctus, 2 . Eyes from the side. 8. Thalassius spenccri, p. 29. Eyes from the side. 9. Thalassius jay akari, p. 30. Fang-groove. 10. Thalassius jayakari. Tarsal claws. 11. Thalassius jayakari. Protarsus and tarsus. 12. Ctemis marshalli, p. 26, <£ . Palpal organs. 13. Ctenus marshalli, cJ . Tibia of palpus, from above. 14. Thalassius jayakari, p. 30, J. Spider, enlarged nearly one third. 3. On some Crustaceans from the South Pacific. — Part I. Stomatopoda. By Lancelot Alexander Borradaile, M.A., Lecturer in Natural Sciences at Selwyn College, Cambridge \ [Eeceived November 30. 1897.] (Plates y. & VI.) The collections of Crustaceans treated of in this paper are those of Mr. J. S. Gardiner, of Gonville and Caius CoDege, Cambridge, from the islands of Funafuti (Ellice group) and Eotuma, and of Dr. A. Willey, from Xew Britain, the Loyalty Islands, and other South Pacific localities. Both of them were made in connection with the " Balfour Memorial Fund," Dr, Willey holding the Balfour Studentship and Mr. Gardiner being also aided by a grant from the fund. ^ Communicated by Prof. Alfred Newton, F.E.S., F.Z.S.