404 Proceedings of the Royal Physical Society. 



1. Cidaris papillata, Leske. 



1778. Cidnris painllata, Leske, Addit. ad Klein Nat. Disp. Ecliin., 



p. 61, pi. xxxix., fig. 2. 



1834. ,, hystrix, Bkin villa, Man. d'Actinol., p. 231, pi. x.xbis, 

 fig. 5. 



1841. ,, ,, Forbes, Brit. Starf., p. 146, cut. 



1845. ,, horealis, Diiben & Koren, Ofvers. k. Vet. Akad. Forh. 



for 1844, p. 114. 



1872. Dorocidaris papillata, Agassiz, Rev. Ecliin., p. 105. 



1874. Cidaris 2MpiUata, Wyv. Thomson, "Porcupine" Echin., Phil. 



Trans., p. 722, pi. lix., figs. 1-13. 



1874. ,, affinis, Id., op. cit., p. 726, pi. Ix. 



1874. ,, papillata, Loven, !fitudes, pi. xx., figs. 168, 169 



(peristome). 



1884. Dorocidaris papillata, Cams, Prodr. faun. Medit. , p. 98. 



Diagnosis. 

 Oblate spheroidal ; ambulacra continuous from anal to oral 

 regions ; spiniferous tubercles, one in each interambulacral plate, 

 none in the ambulacra! ; spines of several forms, jirimaries with 

 ridges composed of tubercles. 



Distribution. 



British Seas. — Shetland (Forbes). N.-W. of Lewis, warm area, 

 ''Lightning" Exp., Station 13, 206 fms. (Thomson, 1, p. 76). 

 "Knight Errant" Exp., St. 1, 305 fms. (Agassiz, 4). Off Unst, 

 110-170 fms. (Norman, 3). Off Fair L, 70 fms. (Pearcey). Cape 

 Wrath, 280 fms. ("Porcupine" Exp., /o?,? Agassiz, 2). Off St 

 Kilda, 100 fms. (Hoyle, 1). W. of L-eland, "Porcupine" Exp. 

 (1869), St. 17, 1230 fms. (Thomson, 1, p. 89). Forty miles off 

 Valentia, 110 fms. (Carpenter, etc., p. 417). S. of Ireland, 

 "Porcupine" Exp. (1870), St. 3, 690 fms. (Thomson, 1, p. 181). 

 Coast of Kerry (Brit. Mus.). S.-W. L-eland, 150-315 fms. 

 (Bell, 3). S. of Ireland, 200-400 fms. (Bell, 4). 



Other Localities. — Norway (Sars ; Agassiz, 2 ; Copenhagen 

 Mus.). Cape Sagres, 165 fms. (" Porcupine " Exp.,/t^e Agassiz, 2). 

 Mediterranean (Thomson, 2 ; Ludwig ; Carus ; Brit. Mus.). Red 

 Sea, St Helena, St Paul's Rocks, 70-80 fms.. West Indies, 390 

 fms. (Brit. Mus.). Florida Gulf Stream, 40-150 fms. (Pourtales, 

 fide Agassiz, 2). Florida to lat. 32° N., 100-842 fms. (Agassiz, 5). 

 La Plata, Philippines (Agassiz, 5). Canary Is., 70 fms. Off 

 Monte Video, " Challenger," St. 320, 600 fms. Philippine Is., 

 " Challenger," St?. 204 and 210, 100 and 375 fms. (Agassiz, 3). 



