150 The Irish Naturalist, July, 



Genus 9 — Cythcrura, G. O. Sars. 



Cythcrura gibba (O. F. Miiller).— Westport (A. M. N.) ; canal at 

 Belfast (B. & R.). Dr. Malcomson states that it was taken four 

 miles off the Gol)bins, on the Antrim coast, in 60 fathoms. How did 

 this brackish-water species get there ? Dundrum (G. S. B.). 



C. cornuta, G. S. Brady.— Bantry, Valentia, Ballyvaiighan, Aran, 

 Westport (A. M. N.); Dublin, Clifden, and Roundstone Bays 

 (B. & R.) ; Berehaven, Antrim coast, and Belfast Lough (S. M. M.). 



C, sella, G. O. Sars.— Valentia, Bally vaughan, Aran, Westport, Lough 

 Foyle (A. M. N.); Birturbuy and Clifden Bays, and Dublin 

 (B. & R.); Berehaven, Antrim coast, Belfast Lough, and Donagha- 

 dee (S. M. M.). 



C. acutlcostata, G. O. Sars.— Bantry, Aran, Westport (A. M. N.) 

 Birturbuy and Clifden Bays (B. & R.); Kerry coast, Antrim coast, 

 Belfast Lough, and Donaghadee (S. M. M.). 



C. striata, G O. Sars.— Bantry, Valentia, Dingle Bay, Aran, Birtur- 

 buy, Westport, Lough Foyle (A. M. N ); Dublin and Clifden Bays 

 (B. & R.): Kerry coast, Antrim coast, Belfast Lough, and Donagha- 

 dee (S. M. M.). 



C. angulata, G. S. Brady. — Bantry, Aran ; " Porcupine," 1869, slat. 6, 

 west of vSbannon, in 90 fathoms (A. M. N.); Antrim coast and Belfast 

 Lough (S. M. M.) ; Birturbuy Bay (B. & R.). 



C. producta, G. S. Brady.— Bantry, Aran, Valentia, Lough Foyle, 

 Westport, Strangford Lough (A. M. N.) ; Roundstone and Mulroy 

 Bay (B. & S.) ; Kerry coast, Antrim coast, and Belfast Lough 

 (S. M. M.). 



C. undata, G. O. vSars. — Aran, Westport; "Porcupine," 1869, in 90 

 fathoms west of the Shannon (A. M. N.) ; Dublin, Clifden, and Bir- 

 turbuy Bays (B. & R.) ; entrance to Bantry Bay, Antrim coast, 

 Belfast Lough, and Donaghadee (S. M. M.). 



C. nlgrcscens (Baird). — Everywhere between tide marks; also in 

 the Laniinarian zone and moderately deep water. 



C. simplex, Brady and Norman. — Roundstone (A. M. N.) ; Birturbuy 

 Bay (B. & R.); Belfast Lough (Malcomson, /f^ie' G. S. B.). I presume 

 that it is this species which Dr. Malcomson himself thence recorded 

 as Cytherura propinqiia, and under that same name he records a species 

 as being common at Berehaven. 



C. concentrica, Brady, Crosskey, and Robertson. -Two specimens off 

 Great Skellig, Co. Kerry rS. M. M.). 



C. simllis, G. O. Sars.— Dublin Bay, 3-4 fathoms (B. & R.) ; Bere- 

 haven, and Newcastle, Co. Down (G. S. B.). 



C. fulva, Brady and Robertson.— Valentia, Westport (A. M. N.) ; 



y>?^Clifden Bay (G. S. B.) ; Berehaven, very common ; Antrim coast and 

 Belfast Lough (S. M. M.). 



C. clathrata, G. O. Sars.— Antrim coast and Belfast Lough (S. M. M.). 

 This is an arctic form which has been found as far north as Franz 

 Josef Land, 



