Clare Island Survey — Marine Entomostraca. 45 5 



Family CENTROPAGIDAE. 



Centropages typicus Kroyer. — Common at Ballynakill in 1901, both in the 

 harbour and in the open sea. 



C. hamatus (Lilljeborg). — Very common in inshore tow-nettings at Ballyna- 

 kill in 1901, much scarcer in the open sea. Killary Harbour. 



Isias clavipes Boeck. — Clifden Bay (B. and E.) . Common in Ballynakill 

 Harbour in 1901, and in the open sea close to shore. 



Temora longicornis (Mull.). — Very common in bays and inlets and in the open 

 sea close to shore. Ballynakill Harbour, Clew Bay, Blacksod Bay. 



Metridia lucens, Boeck. — Very common in the open sea along all the west 



coast of Ireland, and found in much smaller numbers in the bays and 



inlets. i 



Family PSETJDOCYCLOPIDAE. 



Pseudocyclops obtusatus Brady. — Frequent in Ballynakill Harbour, 1901-2. 



Family CANDACIIDAE. 



Candacia armata, Boeck. — Occasionally in the open sea off Cleggan, 1901. 

 Clew Bay, surface, August, 1911. 



Family PONTELLIDAE. 



Anomalocera Pattersoni Tenipleton. — Occasionally in the open sea off 



Cleggan, 1901. 

 Parapontella brevicornis (Lubbock). — Westport and Clifden Bays (B. and R). 



Plentiful close to shore, and in all the bays and inlets. 

 Acartia Clausi Giesbr. — Universally distributed throughout the district both 



in the open sea and in bays and inlets. A small form, 9 = - 7 mm., was 



found plentifully in Blacksod Bay in September, 1909, in company with 



others of normal size, 9 = ca. 1'15 mm. 

 A. discaudata (Giesbr.). — Common in Ballynakill and Killary Harbours. This 



species is characteristic of water of low salinity. 



COPEPODA PODOPLEA. 



Family CORYCAEIDAE. 



Corycaeus anglicus Lubbock. — Frequent both in Ballynakill Harbour and in 

 the open sea in the winter of 1901-2. 



Family ONCAEIDAE. 



Oncaea oonifera Giesbr. — A common oceanic species taken a few times off 

 Cleggan and Clare Island in 1901. 



