.'{SO "ENDEAVOUR" SCIENTIFIC RESULTS. 



Bate 62 noticed and remarked that the specimens taken 

 near the Kermadec Islands "are generally more slender, 

 the legs rather longer and the rostrum longer and more 

 rigidly straight ..." than the specimens he considered 

 typical of son ilir cits. No doubt, at least, his Kermadec 

 Island specimens are very close to, if not identical with 

 typical Plesionika mart la. 



Genus HETEROCARPUS, Milne Edward.*. 

 HETEROCARPUS SIBOGJE, de Man. 



Hctcrocarpux xiltogfr, de Man, Zool. Medd. Mus. Nat. 

 Hist. Leiden, iii., 1917, afl. 4, p. 283. Id., "Siboga" 

 Kxped., xxxixrt 3 , Decapoda, pt. iv., 11)20, p. 169, pi. 

 xiv., figs. 42-42i. 



* 



Heterocarpus ensifer, Alcock, Desc. Cat. Indian Deep-Sea 

 Crnstacea, 1901, p. 107. 



Occurrence. 30 miles S.W. of Gabo Island, Victoria, 

 240 fathoms; one female (Reg. No. E.6142). 



Distribution. Otherwise known from the Andaman 

 Sea, 188-220 fathoms (Alcock): and the Dutch East 

 Indies; north of the Island of Baljan, 397 metres, the 

 Kei Islands, 397-560 metres, west of Saleyer, 462 metres, 

 the southern entrance of the Straits of Makassar, 450 

 metres (de Man). 



Measurements. The carapace is 23 mm. long the 

 rostrum is wanting the abdomen and telson together 

 are 48 nim., and the telson alone is 14 mm. in length. 

 The spine of the anteunal scale slightly exceeds the blade 

 and measures 15 mm. in length. 



Remarks. The distinguishing characters of this 

 species are such as to permit ready determination by 

 means of the "Key to the ludo-Pacific Species of the 

 Genus Heterocarpus," prepared and published by de Man 

 in his "Siboga" report. 



In the same key de Man diagnoses H. siynatus 

 Rathbun" 3 with an added footnote to the effect that "the 

 length of the dactyli of the three posterior legs is not 



" 2 "Challenger" Kept., Zool., xxiv., Macrura, 1888, p. 645. 

 ""Bull. U.S. Fish Coinm., 1903, xxiii., 1906, pt. iii., p. 918, pi. xxi., 

 fig. 6. 



