OCR Text |
Show 726 MR. W. F. LANCHESTER ON CRUSTACEANS [June 19, The carapace is closely granulated, a few of the granules being larger than the others, more especially one on each branchial region, and one on the cardiac. The sides are irregularly tuber-culate, two fairly prominent tubercles may be seen close behind the eye, and two more farther back, one on the branchial angle, the other on the postero-lateral margin. The middle line of the carapace is somewhat elevated ; the hepatic regions are, as usual, very depressed. As regards the rostrum, the upper half is obliq uely deflexed, the lower half vertically ; its surface is granular and obtusely bicarinate, so as to form a median and two lateral grooves, tbe median terminating in the wide notch which separates the two lobes of the distal margin. The chelipedes are small and quite smooth ; the distal half of the upper margin of tbe arm is strongly keeled, but tbe carina is not dentate. Ambulatory legs densely hairy, otherwise smooth: the meri are rather broad, but not so much as those of M. curtispina. The orbital margins are prominent; a single closed fissure above, and two below; pterygostomian regions smooth, and profoundly excavate. Basal joint of antennae smooth, and the next two joints fairly narrow. The fingers of the chelipedes do not meet in their proximal half. Colour of carapace brick-red, touched with light yellow; chelipedes light yellow, distal two-thirds of fingers brown. Dim. o* 9x11. $ 9-5x11-5. XII. Genus LAMBRUS Leach. 17. LAMBRUS HOPLONOTUS Ad. & White. Lambrus hoplonotus, Ad. & White, ' Samarang' Crust, p. 35, pi. vii. f. 3 (1848); Hasw. Cat. Austr. Crust, p. 33 (1882); Henderson, Trans. Linn. Soc, Zool. vol. v. p. 351 (1893). Hab. Singapore ; 10 fms. Two females, of the var. planifrons. Dim. $ 9-25x8. $ 9-25x8. 18. LAMBRUS VALIDUS de Haan. Parthenope (Lambrus) valida, de Haan, Crust. Japon. p. 90, pi. xxi. f. 1, & ph xxii. f. 1 (1839). Lambrus validus, Ad. & White, ' Samarang ' Crust, p. 29 (1848). Hab. Singapore; 15 fms. One male. Dim. 30-25x265. 19. LAMBRUS LONGISPINUS Miers. Lambrus lom/ispinus, Miers, Ann. Mag. Nat. Hist. ser. 5, vol. iv. p. 18 (1879). ^ . Lambrus spmifer, Hasw. Proc. Linn. Soc. N. S. W . vol. iv. p. 451, pi. xxvii. "f. 4(1880). Lambrus longispinus, Miers, 'Alert' Crust, p. 199 (1884) ; Walker, Journ. Linn. Soc, Zool. vol. xx. p. 109 (1887). Hab. Singapore : 6-8 fms. Two males. Dim. o* 10-25 x 10-5. 6 16 x 16. |