| OCR Text |
Show 1 9 0 5 .] FROM CHRISTMAS ISLAND. 5 4 9 legs are unfortunately wanting); and likewise a female 50 mm. long with the female from Christmas Island. In a paper on some species of this genus (in the Transactions of the Linnean Society of London, 2nd ser. Zool. vol. ix. pt. 8, 1904, p. 292), I have already alluded to the fact that in adult specimens of Pal. lar Fabr. from Tahiti, described by me as a variety spectabilis, the ambulatory legs presented a stouter shape than in specimens of the same size from Halmahera; but I do not venture to say now whether the Prawns from Christmas Island belong to that variety or not, because they are considerably younger. Measurements in millimetres. 1. <?. OI CH- 3. <?• 4. ?• Length of the body ...................................................... 62 43 75 43 Formula of the rostrum .............................................. 83 93 7 2 93 Length of the carpus of 1st pair of legs...................... 7'5 5-3 9-3 5 „ ., chela „ „ ...................... 4-25 3 4-5 2-8 „ ,, larger leg of the 2nd pair...................... 49 25-5 49 26-5 „ „ merus ...................................................... 95 5-25 10-5 55 Breadth of the merus proximally .............................. 1-5 0-5 1-2 0-6 „ ,, „ distally ...................................... Length of the carpus...................................................... 2'5 09 1-7 0-9 8-25 4-9 9-5 5-7 Breadth of the carpus proximally .............................. I'D 0-7 1-25 065 „ „ „ distally...................................... 3-25 1-25 1-9 1-2 Length of the chela ...................................................... 21 9-2 185 8-8 ,, „ palm ...................................................... 12 5 10 4-75 Breadth ,, „ in the middle .............................. 3-75 1-3 2-2 1-25 Thickness „ „ ., .............................. Length of the shorter leg of the 2nd pair .................. 3-25 4-5-5 1-16 24-5 2 1-1 24 „ „ merus ...................................................... Breadth „ „ proximally.................................. „ „ ,, distally ...................................... Length of the carpus...................................................... Breadth „ „ proximally.................................. 9 1-5 2-4 7-5 1-5 50 5 0-9 4-4 0-65 5"25 06 0-9 5 0-7 „ „ „ distally ...................................... Length of the chela ...................................................... 2-9 1-2 112 18-5 8-65 8-75 ., „ palm ...................................................... 10-25 4-5 4-75 Breadth „ „ in the middle 2-75 1-3 1-2 Thickness „ „ ......................... 2-4 11 11 Length of the meropodite * of the 3rd pair of legs 7-5 52 9-2 52 Breadth „ „ » » 1-33 0-72 1-3 0-62 Length „ propodite „ „ „ ... 6-4 4-7 7-7 4-2 Breadth „ „ ;> » ••• Length „ dactylopodite „ „ „ ... ------ --------- 0-78 2-3 0-38 1-4 065 2-9 0-35 Nos. 1, 2, Christmas Island; No. 3, male from the River Palopo; No. 4, female from Kadjang, Celebes. In another recent paper on species of this genus (in ‘Notes from the Leyden Museum,' vol. xxvi. 1905, p. 204, pi. 15. figs. 1-4) I have proved that Pal. reuniannensis Hoffm., from the Island of * The joints of the ambulatory legs are measured, their length along their upper border, the breadth just in the middle. |
