148 The Irish Naturalist. June, 



Geaus 4. — Cythericlea, Bosquet. 



C. eIong:ata, G S. Brady.— Bantry, Valentia, Dingle Bay, Arau, Clew 

 Bay, Lough Foyle, Strangford Lough, Youghal (A M. N.) ; Round- 

 stone (G. S. B.) ; Dublin and Clifden Bay (B. & R.) ; Berebaven, 

 Antrim coast, tide marks to 60 fathoms ; Belfast Lough (S. M. M.). 



C, papiilosa, Bosquet.— Off Valentia in deep water, Westport 

 (A. M N.); Antrim coast, 15-60 fathoms ; Belfast Lough, tide marks 

 to 10 fathoms; ofi" Great Skellig, Co. Kerry (S. M. M.). 

 C.punctillata, G. S. Brady.— Off Valentia (A. M. N.) ; Dublin Bay, 

 3-4 fathoms (B. & R.) ; off Great Skellig (S M. M.). 



C. st!g:mosa, Brady & Norman. — The types were dredged in deep 

 water off Valentia in 1870 (A. M. N.). It has not as yet been found 

 elsewhere 



C. torosa (T. R. Jones).— In brackish waters, Newport and Westport 

 Bays, Co. Mayo (A. M. N.). 



C. lacustrls (G. O. Sars).— Lough Neagh (A. M. N.). 

 C.subflavcscens, G. S. Brady.— Off the coast of Antrim, 15-72 

 fathoms ; Belfast Lough, 10 fathoms : Donaghadee, tide marks 

 (S. M. M.). 



C. sorbyana, T.R.Jones. — In 112 fathoms, 30 miles off Valentia, in 

 1S70 (A. M. N.); off the Great Skellig (S. M. M.). 



Genus 5 — Eucythere, G. vS. Brady. 



Eucythcre decllvis (Norman). — Bantry, Valentia, Dingle Bay, Aran, 

 Lough Foyle, Strangford Lough (A. M. N.) ; Galway and Round- 

 stone (G. S. B.); Donegal Bay (E. C. Davison); Kerry coast, Antrim 

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

 Var. argrus, G. O. Sars. — In shell-sand, Galway Bay (Prof Rowney) 

 Dublin and Westport Bays (B. & R.). 



E. anglica, G. S. Brady.— Westport, Co. Mayo (A. M. N ) ; Clifden 

 Bay to 6 fathoms (B. & S.). This is the same form which was sub- 

 sequently called by Brady and Robertson var. prava ; they apparently 

 having forgotten that the former had already described it under the 

 name E. anglica in an appendix to his monograph (p. 475). I am 

 disposed to regard it as a good species. 



Genus 6. — Krithc, Brady, Crosskey, & Robertson, 



Krithc bartonensis (T. R. Jones). — Off Valentia, Youghal (A. M. N.) ; 

 Donegal (E. C. Davison) ; Aran, Roundstone, and Birturbuy Bays 

 (G. S. B.); off the Great Skellig (S. M. M.). 



K. pi-oducta, G. S. Brady.— " Porcupine," 1869, station 19, lat. 54" 53' 

 N., long. 10° 56' W., to the west of Donegal, in 1,350 fathoms; station 

 20, lat. 55° II' N., long. 11° 31' W., in 1,443 fathoms, and station 34, 

 south of Berehaven, lat. 49° 51' N., long. 10° 12' W., in 75 fathoms. In 

 this last locality only a single valve was found. It is a species of 

 very wide distribution in very great depths in the ocean. 



