292 DE. J. &• DE MAN ON SPECIES OE PAL^MON 



of the upper antennse, tliough not reaching to the end of the scaphocerites ; the upper 

 maro-in is slightly convex above the eyes, and its distal half is more or less turned 

 upward. The third tooth is situated just above the orbital margin ; in three specimens 

 this tooth is as long as the second, and both are longer than the others, but in the male 

 No. 4 these teeth are not longer than the rest. 



The telson of No. 1 and No. 2 ends in a short median acute tooth (fig. 1) ; the inner 

 of the two spines on each side is three times as long as the outer, and overreaches the 

 median tooth by its distal half. In the two other specimens the median tooth and the 

 spines are more or less worn off. In these four specimens the second legs are of about 

 equal size ; in all the slender fingers are gaping, just as in the figure quoted, in consequence 

 of the strong development of the teeth vrith which they are armed, and they are also 

 somewhat curved inward. The dactylus is regvilarly curved towards the tip and usually 

 a little shorter than the immobile finger ; the latter is j^rovided with a conical tooth at a 

 fourth of its length from the articulation and with a smaller one between this tooth and 

 the proximal end of the finger. The dactylus bears also a conical and compressed tooth 

 at a third of its length from the articulation, which is not smaller than the tooth of the 

 other finger, and between this tooth and the articulation is seen four or five much 

 smaller obtuse teeth ; sometimes, however, the latter are more or less i-udimentary. 



The second legs are of a fine dark purple colour, darkest on the fingers, which 

 appear almost black ; the articulation of the fingers is beautiful orange-red, as also 

 the articulation between carpus and palm, and the fingers are marked with pale spots, 

 as in the figure in the ' Challenger ' Report. The dorsal surface of cej)halothorax and 

 abdomen and the posterior margin of the upper teeth of the rostrum have also a purple 

 colour, though paler than that of the second legs, being more cheriy-red. As regards 

 their colour, our specimens apparently agree with those from the River Papeuriri in 

 Tahiti, described in the Report on the ' Challenger ' Macrura. 



An adult male and an adult female from Patani, on the island of Halmahera, are now 

 before me {vide de Man, in Abhandl. Senckenb. Naturf. Gesellschaft, xxv. Heft 3, 1902, 

 p. 777). In these specimens the cephalothorax and the abdomen are not adorned with 

 the beautiful purple colour observed on tlie specimens from Tahiti, and the three posterior 

 j)airs of legs are longer and more slender. So, e. g., in the adult male from the River 

 Tobelo, that is 115 mm. long, the meropodites of the fifth pair are 16 mm. long, and, 

 measured on their outer side, in the middle 1"6 mm. broad ; the carpopodites are 106 mm. 

 long, and 1*6 mm. broad at the distal end ; the propodites have a length of 17 mm. and are 

 096 mm. broad in the middle, the terminal joints finally are 4'5 mm. long. In our male 

 (No. 4), however, of exactly the same size, the meropodites of the fifth pair are 14 mm. long 

 and 1'85 mm. broad in the middle; the carpopodites are 8 mm. long and 1"6 mm. broad 

 at the distal end ; the propodites are 15 mm. long and 1'12 mm. broad in the middle, the 

 terminal joints finally are 3"6 mm. long. 



The Tahiti species may therefore be regarded as a local ixmety, for which I propose 

 the name spectabilis, because it is certainly identical with P. spectabilis. Heller, from 

 the same island. 



