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Show 1 900.] FROM SINGAPORE AND MALACCA. 745 XXXVII. Genus NEPTUNUS de Haan. 59. NEPTUNUS PELAGICUS Linn. Cancer pelagicus, Linn. Syst. Nat. (ed. xii.) p. 1042 (1766). Lupea pelagica, M.-Edw." Hist. Nat. Crust, t. i. p. 450 (1834). Portunus (Neptunus) pelagicus, de Haan, Crust. Japon. p. 37, pi. ix.&x. (1839). Neptunus pelagicus, A. M.-Edw. Arch. Mus. t. x. p. 320 (1861); Hasw. Cat. Austr. Crust, p. 77 (1882); Walker, Journ. Linn. Soc, Zool. vol. xx. p. 110 (1887); de Man, Mergui Crust, p. 69(1888) ; id. Zoolog. Jahrb. Bd. viii. p. 556 (1895); Henderson, Trans. Linn. Soc, Zool. vol. v. p. 367 (1893). Hab. Singapore. Six males and six females ; all from pools at low water. Dim. d 84x45-25. d 81x44. d 68x37. d 51-5x28. d 51-5x27-5. d 42-25x22. $ 58x31. $ 55-5x30-5. $ 44x24-5. $ 39x22. $ 37x21. $ 33x19. 60. NEPTUNUS SANGUINOLENTUS Herbst. Cancer sanguinolentus, Herbst, Naturgesch. d. Krab. i. p. 161, pi. viii. ff. 56-57 (1796). Portunus sanguinolentus, Fabr. Suppl. Ent. Syst. p. 367 (1798). Lupea sanguinolenta, M.-Edw. Hist. Nat. Crust, t. i. p. 451 (1834). Neptunus sanguinolentus, A.- M.-Edw. Arch. Mus. t. x. p. 319 (1861); Hasw. Cat. Austr. Crust, p. 77 (1882); Henderson, Trans. Linn. Soc, Zool. vol. v. p. 368 (1893). Hab. Singapore ; sandy shore. Two males and a female. Dim. d 52x28. d 40-5x22. $ 37-5x20. 61. NEPTUNUS (AMPHITRITE) HASTATOIDES Fabr. (Plate XLV. fig. 7.) Portunus hastatoides, Fabr. Suppl. Ent. Syst. p. 368 (1798). Cancer hastatus, Herbst, Naturgesch. d. Krabben, iii. p. 3, pi. Iv. f. i. (1803). Lupea hastata, M.-Edw. Hist. Nat. Crust, t. i. p. 455 (1834). Portunus (Amphitrite) hastatoides, de Haan, Crust. Japon. p. 39, pi. i. f. 3 (1839). Neptunus hastatoides, Henderson, Trans. Linn. Soc, Zool. vol. v. p. 368 (1893). Neptunus (Amphitrite) hastatoides, de Man, Zoolog. Jahrb. Bd. viii. p. 557 (1895). Hab. Singapore; 5 fms., mud. Five small males and one female. In two of these the dark spot, on the end of the dactyls of the last pair, is absent. Like Dr. de Man's Malacca examples (t. c.) the middle teeth of the front project only as far as the middle portion of the upper orbital margin. The teeth mentioned by Dr. de Man as occurring on the distal end of the hind border of the meri of the last pair of legs are not readily distinguished in these small examples, but they seem to be variable and not constant. |