1905. 



Norman. — Irish Crustacea Oslracoda. 



145 



Cytherc crispata, G. S. Brady.— Valentia, Aran, Roundstone, West- 

 port (A. M. N.); Dublin, Clifden, and Birturbuy Bays (B. & R.) ; 

 Bereliaven, Antrim coast, and Belfast Lough, tide marks to 60 

 fathoms (vS. M. M.). 



C. cribrosa, Brady, Crosskey, and Robertson.— Dr. Malcomson records 

 a single specimen of this species as having been found by him at 

 Rockport, Co. Down. This is the only instance of C. cribrosa, which 

 was described as a fossil of the post-tertiary beds, being found recent. 

 When we remember that off Belfast the dredge brings up arctic 

 post-tertiary Mollusca which no longer live in our seas, but which 

 have a remarkably recent appearance, it is possible that the speci- 

 men found by Dr. Malcomson may have been washed out of the 

 same sub-marine strata. 



C. sulcifera, Brady and Norman. — " Porcupine," 1869, station 19, east 

 of Donegal, in 1,360 fathoms. The type and only known specimen. 



Ct gribbosa, Brady & Robertson. — A brackish water species. Newport 

 and Westport, Co. Mayo (A. M. N.); Roundstone, Mulroy Bay, 

 canal at Belfast (B. & R.); Dundrum (G. S. B.) ; Rockport, Co. 

 Down, and off the Maidens Lighthouse in 60 fathoms (S. M. M.). 

 The specimen in this last locality must have been washed out to 

 sea. 



C. rubida, G. S. Brad}-. — I found this species in 1902, living at low 

 water, at Bally vaughan, Co. Clare. This widely extends our know- 

 ledge of its distribution in our seas. All previous examples had 

 occurred in the Clyde district, the second Irish locality being 

 between tide marks, Rockport, Co. Down (S. M. M.) ; and the re- 

 maining two habitats are both in the Firth of Clyde itself — namely, 

 Lamlash Bay, where I took the type specimens in 1854, and the 

 Isle of Cumbrae, where it was found by the late Dr. D. Robertson. 

 It occurs in Norway, and was described by Professor G. O. Sars 

 under the name Cy there drainniensis. 



C. albomaculata, Baird. — Youghal, Valentia, Dingle Bay, Bantry, 

 Ballyvaughan, Aran, Roundstone, Lough Foyle, Strangford Lough 

 (A. M. N.); Dublin, Clifden, and Birturbuy Bays (B. & R. ): New- 

 castle, Co. Down (G. S. B.) ; Antrim coast and Belfast Lough 

 (S. M. M.). 



This species is abundant in rock-pools all round our coast. North- 

 wards, in Norway, it would seem to be very scarce, as Professor Sars had 

 not met with it ; but I took a few specimens at Lervig, in the Hardanger 

 Fiord. To the south it is not recorded in Dr. G. W. Miiller's fine work 

 on the Mediterranean Ostracoda. Nevertheless it would seem to be a 

 southern form, since T found it to be common in rock-pools at Madeira 

 in 1897. 



C. Robertsoni, G. S. Brady. -Bantry, Aran, Westport (A. M. N.) ; 

 Roundstone (Robertson in Mus. Nor.); Dublin (B. & R.) ; Bere- 

 haven, entrance Bantry Bay ; 40 fathoms off Antrim coast, and in 

 Belfast Lough (S. M. M.). 



