| OCR Text |
Show 764 MR. W. F. LANCIIESTER ON CRUSTACEANS [June 19, crescent-wise on each side of the gastric region, and the female has, in addition, a reticulated yellow patch on the cardiac and uro-cardiac regions. Dim. d 10-5x12. $ 12x13-5. 103. LEUCOSIA BRUNNEA Miers. Leucosia brunnea, Miers, Trans. Linn. Soc 2nd ser. Zool. vol. i. p. 237, pi. xxxviii. ff. 10-12 (1877). Hab. Singapore : 7 fms.; muddy bottom. A female. A very deep yellow patch on the uro-cardiac declivity, extending forward laterally nearly to the epibranchial angle; the same yellow colour on all the legs, but less deep on the abdomen. Dim. 25-5x29-75. LVII. Genus PHILYRA Leach. 104. PHILYRA GLOBOSA Fabr. Cancer globosus, Fabr. Ent. Syst. ii. p. 441 (1792). Leucosia globosa, Fabr. Suppl. Ent, Syst. p. 349 (1798). Philyra globosa, M.-Edw. Hist. Nat. Crust, t. ii. p. 132 (1837). Philyra porcellana, M.-Edw. t. c p. 133. Philyra globosa, de Man, Mergui Crust, p. 203 (1888). Philyra globosa et qlobulosa et syn., Alcock, Journ. As. Soc. Bengal, vol. lxv. pt. ii! No. 2, pp. 243-246 (1896). Philyra polita, Henderson, Trans. Linn. Soc, Zool. vol. v. p. 401, pi. xxxviii. ff. 1-3 (1893). Hab. Malacca: 5 fms. ; muddy bottom. Eight males, seven females : one of the latter carrying ova. In none of these does the epistome project farther than the front; the inner angles do, but in a greater or less degree in the different individuals. Five of the males have the small tubercle on the abdomen (P. globulosa); in the other three it is absent. (P. globosa)-yet in one of the males with a tuberculated abdomen the wliole of the upper surface of the arm is granulated except near the tip (P. globosa), while in tbe three with no tubercle only the proximal half is granular (P. globulosa) ; in all the females it is entirely granulous except at the tip. The internal edge of the exopodite of the external maxillipedes seems to show a gradation from a nearly straight line to a slightly curved one ; but, curiously, the nearly straight edge (P. globosa) is found in the males with abdominal tubercle (P. globulosa), the slightly curved (P. globulosa) on a male with no tubercle (/'. globosa). In all cases the under surface of the m e n of tbe legs is smooth (P. globosa); equally in all cases, the size of the granules on the edge of the carapace varies (P. globulosa). Tbe males with abdominal tubercles have a low dentiform eminence at the base of the thumb, in those with no abdominal tubercle it is absent; this is the normal correlation in P. globulosa and P. globosa respectively. The amount of definition of the regions of the carapace varies fi-om one to |
