21 2 Proceedings of the Royal Irish Academy. 



Salpa mueronata Forsk. — A large shoal of this species was swept up the west 

 coast of Ireland in August, 1903, and was found plentifully off Cleggan 

 Head in that month. 



Salpa asymmetrica Fowler. — An oceanic species taken occasionally off Cleggan 

 in 1903. It probably occurs frequently at irregular intervals. 



Dolioluni tritonis Herdm. — An oceanic species, often drifted shorewards. It 

 was taken to the east of Clare I. in August, 1901. 



ASC IDIACEA. 



As it is difficult to discover in most cases what species of Ascidians are 

 indicated by the names given by early writers, it has seemed best to keep 

 separate the few published records from the Clew Bay area. 



The following species are recorded from within the limits of the district 

 in Alder and Hancock's "British Tunieata " (Bay Society, 1905-12). The 

 records are chiefly based on the work of Thompson : — ■ 



Ascidia mentula Miiller. — Clew Bay. 



Ascidia, venom Miiller. — Killary Bay. 



Ascidia canina Miiller. — Clew Bay. 



Ascidia scah-a Miiller. — Clew Bay, Killary Bay. 



? Ascidia ciimi Van Ben. — Killary Bay (recorded by Forbes, " British 



Mollusca "). 

 [Stt/clopsis] sphaerica Aid. Hauc. — Killary Bay. 

 Aii>aroucium proliferum M. Edw. — Clew Bay. 

 Zeptoclinum macvJosum M. Edw. — Clew Bay. 

 L. durum M. Edw. — Clew Bay. 

 L. gdatinosum M. Edw. — Clew Bay. 

 Botryllus gemmeus Sav. — Clew Bay. 

 Botryttus bivittatus M. Edw. — Clew Bay. 



Professor Herdman in his Cruise of the " Argo " (Trans. Liverpool Biol. 

 Soc, Y) records the following: — 



Polycarpa argoensis Herdman— Killary Bay, 20 fins., one specimen. 

 Ascidiella oosperm Miiller. — Killary Bay, 5-10 fins., abundant. 

 Corella parallelogram/ma Miiller. — Killary Bay, 5-15 fms. 



