THE LAMPROPIDZ 309 
the female carry rudimentary exopods in the shape of 
two-jointed setiferous appendages; the male has no pleo- 
pods. Lamprops fasciata, Sars, is found in Great Britain 
as well as Norway. In the female the carapace has three 
oblique lateral folds. The telson terminates in five spines. 
Lamprops fuscata, Sars, has the carapace smooth in both 
sexes. Lamprops quadriplicata, 8. 1. Smith, from the north- 
east coast of America, has four lateral folds on the carapace. 
Hemilamprops, Sars, 1882, has the flagellum of the 
second antenne in the male filiform and as long as the 
body ; the third and fourth perzeopods in the female with 
rudimentary exopods; and three pairs of pleopods in the 
male. Henilamprops rosea (Norman) is British and Nor- 
wegian. It has the telson ending in seven or eight spines. 
Hemilamprops cristata, Sars, from the same localities, has 
the telson ending in three spines, in which it agrees with 
the Norwegian Hemilamprops uniplicata, Sars. The re- 
maining species, Hemilamprops assvmilis, Sars, has the eye 
rudimentary, and the telson ending in six spines. 
Paralamprops, Sars, 1887, has no eye. The first maxillee 
are without ‘ palp, this defect being unique in the sub- 
order. ‘The third and fourth perzeopods in the female have 
rudimentary two-jointed exopods, and the male has three 
pairs of pleopods. The single species, Paralamprops ser- 
rato-costala, Sars, was obtained by the Challenger at Ker- 
guelen Island. 
Platyaspis, Sars, 1870, has no eye. Only the first pe- 
reeopods in the female have swimming-branches, instead of 
the first two pairs as in the preceding genera of this 
family. The male has three pairs of pleopods. ‘The single 
species is Platyaspis typica, Sars. 
Chalarostylis, Norman, 1879, has the flagellum of the 
second antennz in the male reaching to the end of the 
trunk. There are three pairs of pleopods in the male. 
The uropods are remarkably long and slender. ‘The telson 
is short, ending in three spines. The female is unknown. 
Chalarostylis elegans, Norman, taken by the Porcupine 
off Rockall, in 109 fathoms, is the only species. It may 
or may not have an eye, but none has yet been perceived. 
