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Show 728 MR. w. F. LANCHESTER O N CRUSTACEANS [June 19, extends under the antero-lateral margins. Chelipedes three times as long as the body, and generally quite smooth above and below, except for-(a) a longitudinal line of granules on the upper surface of the arm, not quite reaching its distal extremity ; the most proximal of these is produced into a very strong tooth ; (b) a similar, more obscure line on the under surfaces of the wrist aud hand ; the distal third of this surface in the hand is rather swollen, and the linear arrangement of the granules is here rather broken up. The whole of the inferior margin of the arm and hand is set with evenly disposed sharp tubercles, which in the wrist are granular (in the male they are less sharp than in the smaller female) ; on the posterior margin of the arm five strong teeth, with smaller ones between them ; on the anterior margin a similar arrangement, the teeth being, however, less strong and more numerous; two strong teeth on the hind margin of tbe wrist ; both upper margins of hand dentate, the teeth being much stronger in its distal third. Dactyl with upper margin dentate ; both fingers with strong tubercular teeth on the inner margins ; these margins do not meet, except at the tips. Ambulatory legs with mero- carpo- and pro-podites strongly carinated above ; and with meri spinulose below, strongly on tbe 1st and 4th pairs, very obscurely on the 2nd and 3rd. Length (base of posterior spine to tip d • $ • of rostrum) 25-5 mm. 20 mm. Breadth (between 7th and 8th anterolateral spines) 28 „ 22*5 „ Length of chelipedes 76 „ 59-5 „ This species is most nearly related to L. validus and L. laciniatus, from both of which it is distinguishable by its relative smoothness, and the fact that it is not so very much broader than long. XIII. Genus CRYPTOPODIA M.-Edw. 22. CRYPTOPODIA FORNICATA Fabr. Cancer fornicatus, Fabr. Ent. Syst. t. ii. p. 453 (1781); Herbst, Naturgesch. d. Krab. Bd. i. Hft. 8, p. 204, pi. xiii. ff. 79-80 (1785). Crgptopodia fornicata, M.-Edw. Hist. Nat. Crust, t. i. p. 362 (1834); de Haan, Crust. Japon. p. 90, pi. xx. f. 2 (1839); Hasw. Cat. Austr. Crust, p. 37 (1882); Walker, Journ. Linn. Soc, Zool. vol. xx. p. 109 (1887); Hend. Trans. Linn. Soc, Zool. vol. v. p. 351 (1893). Hab. Singapore. A male. Dim. 22X13. XIV. Genus HARROYIA White. 23. HARROVIA ALBOLINEATA Ad. & White. Harrovia albolineata, Ad. & White, ' Samarang' Crust, pp. 55-56, pi. xii. f. 5 (1848). |
