i\&o The Irish Naturalist. July 



Genus 9.— Cythcrura, G. O. Sars. 



Cytherura eribba (O. F. MUller).— Westport (A. M. N.) ; canal at 

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

 miles off the Gobbins, 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, Ballyvaughan, Aran, 

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

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



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

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

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

 - 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. aniTUlata, G. S. Brady. — Bantry, Aran ; " Porcupine," 1869, stat. 6, 

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

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



Ci 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. Sars. — 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. nigrescens (Baird). — Everywhere between tide marks; also in 

 the Laminarian zone and moderately deep water. 



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

 Bay (B. & R.) ; Belfast Lough (Malcomson, fide G. S. B.). I presume 

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

 as Cytherura propinqua. and under that same name he records a species 

 as being common at Berehaven. 



C. conccntrica, Brady, Crosskey, and Robertson. —Two specimens off 

 Great Skellig, Co. Kerry (S. M. M.). 



C. sitnllis, 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.) ; 

 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. 



