240 AUSTRALIAN MALACOSTRACA. 



pereiopoda foliaceous, dactylos absent ; third and fourth pairs 

 subequal, similar to the first and second, but with the basos 

 broader, and with a very small, conical dactylos ; fifth pair very 

 long, the distal segments slender, armed with a few short seta?. 

 Posterior pleopoda having the rami narrow, ovate, bordered 

 internally towards the apex with slender hairs. Length W in, 



Shark Island, Port Jackson. Perhaps identical with (E./osor. 



Genus Urottioe Dana. 



Eyes two, lateral. Coxae very large ; fifth pair very small. 

 Onathopoda slender, subchelate. Superior antennas appendicu- 

 late. Maxillipedes having the propodos long, and dilated 

 anteriorly ; carpus dilated internally and anteriorly, the lamella? 

 of the ischium small, of the basos rudimentary. Posterior pair 

 of pleopoda two-branched, very long ; branches foliaceous. 

 Telson double. 



429. Urothoe pinguis. 



Vrotlioe pinguis, Haswell, 1. c, p. 325, pi. six., fig. 2. 



Body very thick. Eyes small, reniform. Superior antenna? 

 as long as the cephalon and first segment of the pereion ; peduncle 

 very stout, first segment the largest, third very small ; flagellum as 

 long as the peduncle, of fifteen articuli ; appendage two-thirds of 

 the length of the flagellum, composed of ten articuli. Inferior 

 antenna? longer than the superior pair ; peduncle very thick, 

 fourth joint the largest, fifth about two-thirds of the length of 

 the fourth and more slender, both fringed below with long hairs ; 

 flagellum as long as the two last segments of the peduncle. 

 Mandibles with a broad foliaceous palp. Maxillipedes with a 

 strong dactylos and with small, spine-fringed, squamiform plates 

 on both basos and ischium. Gnathopoda large ; anterior pair 

 with the carpus three-fourths of the length of the propodos ; the 

 propodos ovoid, swollen; the palm not defined ; the dactylos half 

 as long as the propodos ; posterior pair larger than the anterior, 

 carpus small, subtriangular ; propodos ovate, palm defined by a 

 prominent angle ; dactylos rather more than half as long as the 

 propodos. Eirst two pairs of pereiopoda subequal, sub-foliaceous, 

 the basos about thrice as long as broad, the meros ovate, hairy ; 



