43 4- Proceedings of the Royal Irish Academy. 



Dynamene bidentata (Montagu). — Ballynakill Harbour, under a stone on Eoss 

 shore, one male. From Saxicava-bored limestone, Black Bocks, Ballina- 

 kill, several specimens. Clare Island, shore of harbour, three specimens, 

 Feorinyeeo Bay, Blacksod Bay, shore, thirteen specimens. Elly Bay. 

 Blacksod Bay, shore, two specimens. Moyrahan, Blacksod Bay, shore, 

 one specimen. 



Cymodoce truncata (Montagu. — Ballynakill Harbour, from Saxicava-bored 

 limestone, several. \ mile S. ~W. of Gun-rock, Inishbofin, 16 fins., 

 one specimen. Bonn Harbour, one specimen. Clare Island harbour, 

 three specimens. | mile E. S. E. of Clare Island harbour, 7 fnis-, five 

 specimens. \ mile W. by S. of Cloghcormick Buoy, Clew Bay, 10 fms., 

 three specimens. 



Tribe Yalvifeea. 

 Fani. Idoteidae. 



Idotea baltica (Pallas). — Abundant in shallow water among Laminaria, 

 everywhere throughout the area. 



I. pelagica, Leach. — Occasional specimens have been met with at Ballynakill 



and Bonn among floating weeds. 

 I. granulosa, Eathke. — Ballynakill and Bonn Harbours, occasional specimens 



from Laminaria. Clare Island harbour, three specimens. Louisburgh, 



Co. Mayo, one specimen. 3| miles N". of Clare Island light, 25 fms., 



nine specimens. Elly Bay, Blacksod Bay, 3 fms., two specimens; also 



shore-collecting, two specimens. 

 I. viridis (Slabber). — Xot uncommonly met with in Ballynakill and Bonn 



Harbours, in Laminaria and Zostera beds. 

 I. neglecta, G. 0. Sars. — Taken once in Ballynakill Harbour from the hollowed 



stems of dead Laminaria and once in Bonn Harbour among floating 



weeds. Clare Island harbour, two specimens. Carrigeenrnore Eocks, 



Blacksod Bay, shore, one specimen. 

 I. emarginata (Fabricius ). — Almost as common in the district as i". baltica, in 



Laminaria and floating weeds of all kinds. 

 I. metallica, Bosc. — One male and one female specimen from the surface of 



the sea between Inisgort and Gun-rock, Inishbofin. 



I. linearis (Pennant). — Very common in Ballynakill and Bonn Harbours. 

 S. of Mulranny pier, Clew Bay, 7 fms., one specimen. 



