tlie Palceozoic Bivalved Ehtomostraca. 223 



Primitia renulina, J. ^- 11. ibid. xvi. 419. liUdlow j Abberley : Wenlock ; 



Malvern. 



Roemeriaua, J. Sf H. ibid. xvi. 422. Wenlock ; Malvem. 



rug-ulifera, Jones, ibid. xvi. 419. Wenlock ; Beecliey Island. 



semicircularis, J. is,- II. ibid. xvi. 424. Wenlock ; Sweden. 



seminuluni, Jones, ibid. xvi. 418. Wenlock ; Montgomeiy. 



sigillata, Jones, ibid. xvi. 418. Wenlock ; Beechey Island. 



tarda, liarmnde, MS., Thes. Sil. 200. Stage F. f. 2 (Upper Silurian); 



Konieprus, Bohemia. 



tersa, J. S,- II. An. N. H. s. 8. xvi. 421. Wenlock ; Malvern. 



trigonalis, J. ^- H. ibid. xvi. 421. Wenlock ; Malvern. 



unibilicata, J. ^- H. ibid. 420. Ludlow ; ]Malveru, Abberley. 



variolata, J. ^- H. ibid. 418. Woolhope ; Malvern. 



, var. paiicipunctata, J. S,- II. ibid. 410. Woolhope ; Malvern. 



Lower- Silurian Priniitice. 



Primitia bicornis, Jones, An. N. H. s. 3. xvi. 420. Caradoc ; Harnage, 

 Shropshire. 



bipiniftata, <S'rt/to-, MS. (in the present paper). Llandeilo; Builth, 



South Wales. 



coucinna. See above. 



gregaria, Barrandc, MS., Thes. Sil. 200. Stage D. d. 5 (Lower Silu- 

 rian) ; Konigshof, Bohemia. 



Logani, Jones 1 ^^^ ^^ ^ ^_ 3_ ^^._ ^^-^ ^^^.^_ 



, var. leperditioides, Jones ^^^^^^^ Sandrock ; Canada. 



, var. renitormis, Jones ] ' 



Maccoyii, Salter, sp., ibid. s. 4. ii. oo. Caradoc ; L-eland, Westmore- 

 land, and Scotland. 



matutina, J. 8,- H. ibid. s. 3. xvi. 418. Caradoc; Shropshire. 



nana, J. i^- II. ibid. xvi. 420. Caradoc; Harnage, Shropshire. 



prunella, Barrande, MS., Thes. Sil. 200. Stage D. d. 1, 5 (Lower 



Silurian) ; Vosek, Mt. Kosow, Bohemia. 



rugosa, Jones, An. X. II. s. 4. ii. 55. Trenton ; Canada. 



Salteriana, J. <*(• H. ibid. s. 3. xvi. 417. Caradoc; Sholes Hook, 



Pembrokeshire, Wannamois. 



Sancti-Patricii, J. S; H. ibid. s. 4. ii. 5G. Caradoc ; Ireland. 



semicordata, /. i^'- 7/. ibid. s. 3. xvi. 417. Caradoc; Sholes Hook, 



South Wales. 



simplex, Jb«es, ibid. 417. Caradoc; Harnage, Shropshire: Llan- 

 deilo ; Bussaco, Portugal. 



Solvensis, Jones, ibid. s. 4. ii. hT). Lingula-flags ; Solva, South 



Wales. 



strangulata, Salter, sp., ibid. s. 3. xvi. 416. Caradoc ; Lancashire, 



Wannamois. 



, var. «, Jones, ibid. xvi. 417. Caradoc ; Pembrokeshire. 



, var. crenulata, Schmidt, Untersuch. p. 196. Caradoc ; Bork- 



holui and Paggar. 



KiRKBYA, Jones. 



In 1859 the genus Kirhbya was instituted for the reception 

 of sonic peculiar Entoniostracous valves, found in Permian 

 and Carboniferous strata, which had been doubtfully and un- 

 satisfactorily referred to some cognate genera. (See Kirkby 

 and Jones " On Permian Entoraostraca," Transact. Tyneside 



16* 



