THE RANININEA 139 
from Homola in having a more ovoid carapace, a more de- 
veloped rostrum, feebler legs, and especially in the form 
of the eyes which are very small and not narrowed at the 
base. 
Here also should perhaps be placed some Australian 
species of the genus Paratymolus, Miers, 1879, in which 
the carapace is deflexed in front, flat behind, with the 
sides nearly straight, the ‘front’ being prominent and 
narrow. For a new family Paratymolide Mr. Haswell 
gives the characters, ‘carapace in general form similar to 
the Maioidea. External maxillipedes partly over the epi- 
stome. He thinks that it would perhaps be better placed 
among the Corystoidea. Mr. Miers, however, does not 
agree with this view, but thinks that it ought to stand 
near the Dromidz. It is an argument the more for in- 
cluding the present tribe in the Brachyura, that two 
experts should be unable to agree whether a genus belongs 
to it or another tribe which is brachyuran beyond question. ~ 
Legion 2.—Ranininea. 
The carapace is ovate-oblong, with the regions not 
defined, and the ‘front’ of varying width. ‘The orbits 
are well marked. ‘The first antennz are without special 
fossettes, and are placed to some extent behind the second 
pair. The third maxillipeds are moderately elongate. 
The sternal plastron or breastplate is wide anteriorly. 
The walking-legs have the terminal joint broad and com- 
pressed ; the last pair of legs are small and subdorsal in 
position. ‘The vasa deferentia of the male are protruded. 
The pleon is short, partially extended, not folded under 
the trunk, with four pairs of appendages in the female. 
Dr. Henderson includes the epithet ‘smooth’ in the 
description of the carapace, but this is obviously unsuited 
to Ranina scabra. 
Dr. Boas has ingeniously suggested that the position 
of the vulvz in the bases of the legs instead of in the 
sternal plastron has been brought about by the extreme 
narrowing of the plastron, and this may well have been 
