298 DR. J. G. DE MAN ON SPECIES OE PAL.EMON 



figured by Nobili this proportion is as 1 ; 1'22 or as 1 : 1-23 {vklede Man, in Max Weber's 

 ' Decapoden des Indisclien Archipels,' p. 479). This difference depends, no doubt, upon 

 the difference of age, or is j)erhaps individual. In a male specimen from Minahassa the 

 palm of the left leg was 25 mm. long, 10"5 mm. broad, and 8'5 mm. thick ; though 

 the palm was a little less broad than in the leg that I am describing, it was, however, 

 somewhat thicker, so that the proportion was as 1 : 1'23 (de Man, in Kiikenthal's 

 ' Decapoda,' 1902, p. 783). The i^ aim is tlms four times as long as broad; in the type 

 figured in the ' Annali del Museo Civieo di Genova ' the palm appears three times as 

 long as broad, but the type specimen is much younger, being only 97 mm. long, and the 

 leg that is figured measures only 85 mm. The fingers of our specimen shut close 

 together, and the dactylus is almost 1*5 mm. longer than the immobile finger. At the 

 end of a short black-coloured cutting-edge, which extends almost along a third of the 

 length of the finger from the tip, is seen a small conical tooth, and another of the same 

 size stands in the middle between this tooth and the articulation ; between this second 

 tooth and the articvilation the finger presents two smaller teeth, and between this second 

 tooth and that at the end of the cutting-edge are seven small teeth that gradually 

 decrease in size distally. The black-coloured cutting-edge of the immobile finger is 

 somewhat longer, extending along two-fifths of its length, and it presents a conical 

 tooth at its proximal end; between the latter and close to the articulation this finger 

 carries fifteen small teeth, of which two or three in the middle are a little larger than the 

 others. The dactylus, however, carries only ten teeth between the cutting-edge and the 

 articulation. The number of these teeth apparently increases with the age ; in a young 

 male from the island of Rotti, 50 mm. long, each finger bore only nine teeth between 

 the tooth at the end of the cutting-edge and the articulation (de Man, in Max Weber's 

 ' Decapoden des ludischen Archipels,' 1892, p. 480). The whole leg is covered with 

 small spinules. On the outer margin of the merus they are less numerous than 

 elsewhere ; but on the outer, and in a less degree also on the inner, side of the carpus 

 these spinules are more crowded than on the upper and lower surface of this joint. The 

 outer margins of the palm and of the dactylus are closely beset with these spinules, but 

 their number gradually decreases towards the inner margin of the palm, and on the upper 

 as also on the lower surface of both fingers they are few in number. The spinules on the 

 inner margin of the immobile finger are very slightly larger than those on the inner 

 margin of the palm and than the crowded spinules on the outer margin of the dactylus. 

 This leg has a reddish colour, but on the inner side of merus and carpus it is marbled 

 with black, as are also the distal extremities of the red-coloured fingers. 



The three posterior legs are stout. Those of the third pair project a third or a fourth 

 of the length of their carpopodites beyond the scaphocerites ; the fourth pair is somewhat 

 shorter; and the fifth legs extend scarcely beyond the middle of the antenual scales. 

 The meropodite of the fifth legs of one of the adult males from Dinawa is 17 mm. long 

 and 2"75 mm. thick in the middle ; the carpus, measured to the articulation with the 

 propodite, appears 10"5 mm. long and 2-66 mm. thick on its outer side ; the propodite 

 is 18 mm. long and 1-75 mm. broad in the middle, and the dactylopodite measures 5 mm. 



In all the specimens of P. latimanus that I have examined anteriorly, the upper 



