138 Messrs. Brady and Robertson on Marine 



first joint of the inner branch ; second^ third, and fourth pairs 

 of feet with tlie outer braneh long and three-jointed, the inner 

 very short and two-jointed ; fifth pair rather narrow and 

 elongated, the two laminae being of nearly equal length. 

 Caudal segments very broad, rounded ; surface hispid towards 

 the margins ; terminal setae very short, the longest not much 

 exceeding the length of the segment itself. Length -^ of an 

 inch. 



Several specimens of ^. hispidus were taken in the surface- 

 net in Westport Bay. We have also dredged it sparingly in a 

 depth of from four to ten fathoms off the Durham coast, and 

 more abundantly on a bed of fine clean gravel off Glen Sannox, 

 Arran (N. B.). 



Genus Laophonte, Philippi. 



1. Laophonte similis (Claus). 

 In tidal pools on Great Isle of Aran ; and on LaminaricB 

 and other weeds in Westport, Clifden, Roundstone, and Ventry 

 Bays : not micommon. 



2. Laoplionte forcipata {^^) (Claus). 

 Amongst weeds in Westport Bay. 



Genus Cletodes, Brady. 

 Cletodes limicola^ Brady. 

 Dredged in Westport Bay. 



Genus Orthopsyllus*, nov. gen. 



Lilljeborgia, Claus, 



Cletodes, Boeck (not of Brady). 



Orthopsyllus linearis (Claus). 

 One specimen, taken on a sponge dredged in Westport Bay, 

 The name Lilljeborgia having previously been applied to an 

 Amphipod Crustacean, it became necessary to rename the genus 

 so called by Dr. Claus. M. Boeck f considers it to be identical 

 with Cletodes^ Brady, and applies to it that name ; but the dif- 

 ferences between the two are not unimportant. Lilljeborgia 

 is stated by Claus to have the first antennse fom- -jointed, the 

 second antennae with a secondary branch, the first pair of 

 swimming-feet to have a two-jointed well -developed inner 

 branch, while the three following pairs of feet have the inner 



* op^os, straight ; '^vXKo^i a flea. 



t Nye Slaegter og Arter af Saltvands-Copepoder, 1872. 



