138 Messrs. Brady and Robertson on Marine 



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

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

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

 elongated, the two laminee 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 A. hispidus were taken in the surface- 

 net in Westport Bay. We have also dredged it sj^aringly 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 Laminarice 

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

 Bays : not uncommon. 



2. Laophonte forcipata(?) (Claus). 

 Amongst weeds in Westport Bay. 



Genus Cletodes, Brady. 

 Cletodes limicola, Brady. 

 Dredged in Westport Bay. 



Genus Orthopsyllus*, nov. gen. 



LiUjeborgia, Claus. 



Cletodes, Boeck (not of Brady). 



Orthopsyllus linearis (Claus). 



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



The name LiUjeborgia 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. LiUjeborgia 

 is stated by Claus to have the first antennas four-jointed, the 

 second antennas 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 



* 6p6bs, straight ; •v/fvAAos, a flea. 



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



