64 



the coxae of the 5 th pair show the usual structure as in the male, there is, however, only on e 

 stylet on the endopod of the 2 nd pair, and it is the longer and more slender appendix which 

 in these specimens is wanting. A similar observation was made by Coutière in a young specimen 

 of Sys/et/aspis debilis (A. M.-Edw.) [H. Coutière, in: Buil. Mus. Océanogr. Monaco N° 70, 

 1906, p. 9]. 



Eggs ovoid, very numerous, very small, 0,8 mm. long. 



The variety fimbriata, described by Wood-Mason and Alcock in : Annals Mag. Nat. Hist., 

 6 th Series, Vol. 9, May 1892, p. 359 and in: Journal Asiatic Soc. Bengal, Vol. LXIII, Part II, 

 X" 3, 1894, p. 156, but which in Alcock's Catalogue of the Indian Deep-Sea Crustacea 1901 

 was erroneously referred to the typical species, differs from the latter at first sight by the 

 post-antennal spine being continued backwards, to the end of the hepatic groove, as a sharp 

 carina, by the form of the rostrum, the spine on the lower margin being much more nearly 

 opposite to the middle than to the apex of the antennal scale, by the four spines of the abdominal 

 terga being equal and by the great development of the fringes of the legs. 



General dis tribu tio n : Off St. Lucia, West Indies (A. Milne-Edwards) ; off Frederik- 

 staed, Santa Cruz and off Nevis, West Indies (Faxon); off Banda Island (Bate). The variety 

 (imbriata has been found in the Arabian Sea, off the S. W. coast of India, in the Bay of 

 Bengal and in the Andaman Sea. 



&" 



4. Acanthephyra media Bate, var. obliquirostris de Man. PI. VI, Fig. 14 — 14 c. 



Acanthephyra media Sp. Bate, var. obliquirostris J. G. de Man, in : Zoolog. Mededeelingen, 

 uitgegeven vanwege 's Rijks Museum van Natuurlijke Historie te Leiden, Deel II, 1916, 

 p. 150. 



Acanthephyra media C. Spence Bate, Challenger Crustacea Macrura, 1888, p. 736, PI. CXXIV, 



fig- 5- 

 Acanthephyra media Stanley W. Kemp, in: Fisheries, Ireland, Sci. Invest., 1905, L, [1906], p. 20. 



Stat. 148. August 20. o°i7'.6S., I29°i4-5E. Halmaheira Sea. 1855 m. Bottom fine, grey and 

 green mud. 1 male. 



AcautJiepliyra media Bate has been established on two specimens taken off Tablas 

 Island, one of the Philippine Islands, and has not been observed again since 1888. The 

 specimen, captured by the Siboga expedition, differs by the smaller number of teeth on the 

 upper border of the rostrum and by the rostrum being directed obliquely upward, so that 

 it perhaps may be considered as a distinct variety. 



The male from Stat. 148 is 95 mm. long, the rostrum, measured from the orbital 

 margin to its apex, being 15,5 mm. long, the carapace 17,5 mm. and the abdomen 62 mm., 

 just 4-times as long as the rostrum. The carapace does not seem to difter from the type 

 species, though it can hardly be described as "dorsally flat and smooth to the frontal region" : 

 like in the type it is anteriorly compressed. The rostral carina, obtuse as far as the i st tooth 

 of the rostrum, whence it becomes sharp, commences rather indistinctly at the level of the 

 cervical groove which is shallow and fine and situated at the posterior third of the carapace; 

 from the middle of the cephalothorax it runs at first slightly upwards, but, at the level of the 



