54 



Epistome, outer foot-jaws and sternum dark-green, the foot-jaws with cream-coloured 

 flecks at their distal extremities. Thoracic legs honey-coloured, except the tvvo first joints that 

 are for the greater part dark-green; a dark-green ring on the meri and the propodi are paler 

 coloured at both extremities. Antennular segment anteriorly with 2 sharp teeth and behind 

 them 2 smaller ones, that are farther distant from one another than those of the anterior pair; 

 in the quadrangle formed by these teeth one observes moreover traces of 3 or 4 minute teeth. 

 The inner antennae are 143 mm. long, more than one and a half as long as the body; the 

 peduncle measures 33 mm., nearly as long as the carapace, the shorter flagellum is 55 mm. 

 long, the other 110 mm., just tvvice as long; the peduncle reaches almost by the whole terminal 

 joint beyond the distal extremity of that of the outer antennae. The latter are 333 mm. long, 

 3 2 /.,-times as long as the body; the peduncle, 33 mm. long, appears just as long as that 

 of the inner antennae, exactly like in the larger male. The exopod of the 2 nd i. e. the penul- 

 timate pair of maxillipeds extends as far forward as in the larger male. 



The legs of the i st and of the 2 nd pair are wanting, those of the 3 rd extend by the distal 

 third part of their dactyli beyond the antennal peduncle, while those of the 4 th pair reach almost 

 that tip; the 5 th legs reach almost the distal extremity of the lower border of i st antennal article. 



The other specimen from Ambon is 40 mm. long, carapace 13Y0 mm., abdomen 26 1 /,. 

 The genital apertures are not recognizable, but it seems to be a female, because the abdominal 

 appendages of the 2 nd to 5 th somites consist of a large broadly-foliaceous exopod and an inner 

 branch, that carries an Appendix interna. The general colour, that has apparently changed, is 

 honey-brown, a longitudinal pale band runs in the middle of the anterior half of the abdomen 

 and the joints of the thoracic legs are marked with brown rings on a paler ground. Besides 

 the two larger spines on the antennular segment anteriorly there are behind them only traces 

 of one or two other teeth. Inner antennae 44 mm. long, little longer than the body, their 

 peduncle measures 13 1 /, mm.; the antennal peduncles are 14 mm. long, those of the inner 

 antennae project by half their terminal joint beyond the former. 



The legs of the i st pair barely reach by their dactyli beyond the 2 nd joint of the 

 antennal peduncle, the 2 nd pair extend almost to the distal end of the latter, the 3 rd pair reach 

 as far forward as that peduncle, the 4 th are somewhat shorter and the legs of the 5 th pair 

 project by half their dactyli beyond the epistome. 



The 2 young females from the Postillon-Islands show the same faded, pale-brown colour 

 as the just described specimen and show nothing which is noticeable. 



General distribution: Indian Ocean (Fabricius) ; Zanzibar (Pfeffer) ; Obock (Nobili) ; 

 Mauritius (H. Milne-Edwards) ; Bengal (Pfeffer); Ceylon (Henderson); Singapore (Pfeffer); 

 Amboina (Miers, de Man); Manilla (Pfeffer); Pipon Islands, Cape Melville (Miers); Tabukan, 

 Sangi (Thallwitz); Samoa Islands (Haswell). 



7. Palinurus oriiatus var. decor at us Heller. 



Palinurus ornatus var. decoratus C. Heller, Crustaceen der Novara-Reise, 1865, p. 99. 

 Though Heller's description is rather detailed, it deals exclusively with the coloration 



