43 6 Proceedings of the Royal Irish Academy. 



males of Pseudione hyndmanni as figured by Sars in his " Crustacea of 

 Xorway," vol. ii. The latter species is, however, generally found parasitic 

 on Ewpagurvs berrihardus, though Scott has recorded it from Hippolyte 

 varians. The present specimens are the first, so far as I am aware, to be 

 found on Porcellana longicornis in British waters. I prefer leaving their 

 identity an open question till more specimens have been obtained. I may 

 mention that I have since seen two specimens of Pleurocrypta porcellanae 

 Hesse, from Porcellana longicornis taken at Port Erin, Isle of Man, and in 

 both specimens the males conformed to the type in having the abdomen 

 unsegmented. It seems probable, therefore, that these specimens from 

 Blacksod Bay represent an undescribed species. 



The genus is new to the district. 

 Athelges paguri, Piathke. — Ballynakill, a single specimen from a Pagurid. 

 Epicaridan larvae. — Larval Epicaridea are of very common occurrence in 

 tow-nettings from Ballynakill and Bonn Harbours, either free or attached 

 to Copepoda. A single Cryptoniscid larva was also found attached to 

 Dynamene bidentata. 



