(tREGARIOUS CRUSTACEA FROM CEYLON. 
15 
The second maxillae are of delicate structure, tapering to a 
pointed apex* 
The maxillipeds decisively remove this species from the Exco- 
rallanidae, besides distinguishing it from Alcirona and Lanocira 
in its own family. The first joint is very small, the second fully 
as long as the remaining five joints combined. No one of these 
is very large, but the antepenultimate is the largest, exceeding 
the rest both in its breadth and length, which are subequah 
The terminal joint is very small, but distinct. In Tcichcea 
crassipes the original authorities for that species figure the 
maxillipeds, but leave it obscure whether they are representing a 
seventh joint or not. In Hansen’s more precise figure there is 
no seventh joint, but a nodular cap to the sixth joint which may 
very well be the small seventh joint in coalescence. If this be the 
right interpretation, it will follow that the long second joint of the 
maxillipeds is simple, not the result of two joints coalesced. 
The dilatation of the sixth joint of the limbs appears to be 
legitimately included among the generic characters of Tachcea , 
since the joint is not dilated either in Alcirona or Lanocira or in 
the known species of the present genus. 
In the second pleopods the masculine appendage reached just 
to the extremity of the rami. 
The telsonic segment is armed round the broad apex with 
fourteen spines and many plumose setae. 
The specimen, which was somewhat difficult to flatten for exact 
measurement, equalled about 8*5 mm. in length, with a breadth 
about half the length. 
Its colour in spirit may be described as orange, lightly sprin¬ 
kled with darker tree-markings. 
Family : Sph^EROMLUUE. 
1847. Spliceromidce, White, List of Crustacea in Brit. Mus., 
p. 102. 
1900. Sphceromidce, Stebbing, Willey’s Zoological Results, pt. 
5, p. 643. 
1902. Splicer omidce, Stebbing, South African Crustacea, pt. 2, 
p. 64. 
1904. Splicer omidce, H. Richardson, Proc. U. S. Nat. Mus., vol. 
XXVII., pp. 24, 38. 
The last reference but one will give a key for finding others. 
SPHJEROMA, Bose. 
] 802. Sphceroma , Bose., Hist. Nat. des Crustaces, vol. II., p. 182. 
1900. Sphceroma (sensu restricto). Stebbing, Proc. Zool. Soe., 
London, p. 552. 
