Clare Island Survey — Archiannelida and Polychaeta. 



47 13 



Table of Species — continued. 



Species. 



o 



00 



M 



aj 



M 



o? 



« 



3 



C 



'in 



i— i 



5 



Newport Bay 



and 

 W estport Bay. 



c 



o 



| 



K 

 a 

 o 



ss 3 



=91 



S o 



B 



Other Stalions. 



Protula tubularia {Mont.), . 

 Spirorbis spirorbis (X.), 

 S. pusilloides Bush, .... 

 S. medius Pixel!, .... 



Hkkmf.llidae. 



Sabellaria spinulosa Lmek., 



MyZOSTOMAIUA. 



Myzoatoma cirriferum Leuck., 



X 

 X 

 X 



X 



X 

 X 



X 

 X 



X 

 X 



— 



X 

 X 



X 



Killary Harbour. 



Total, 253 species and 2 varieties, 



170 



166 + 



1 var. 



36 



80 



35 



112 + 

 1 var. 





Disregarding the Archiannelida and Myzostorna, we find that the total 

 number of species of Polychaeta is 249, and 2 varieties, distributed as 

 follows: — Blacksod Bay, 169 species ; ' Clew Bay,' 164 species and 1 variety; 

 Clare Island, 36 species ; Newport and Westport Bays, 80 species ; Bofin 

 Harbour, 35 species; Ballynakill Harbour, 111 species and 1 variety; Killary 

 Harbour, 22 species. The number of species confined to any one of these sub- 

 areas is as follows : — Blacksod Bay, 20 species, or ITS per cent. ; ' Clew Bay,' 

 40 species, or 24-1 per cent. ; Clare Island, 1 species, or 2-8 per cent. ; 

 Newport and Westport Bays, 3 species, or 3"75 per cent. ; Bofin Harbour, 

 1 species, or 2 - 8 per cent.; Ballynakill Harbour, 11 species, or 9 - 9 per 

 cent. ; Killary Harbour, 3 species, or 13 - 6 per cent. It thus appears 

 that ' Clew Bay ' yields both the greatest number and the greatest 

 proportion of peculiar forms, whilst Clare Island and Bofin Harbour 

 contain the smallest proportion. The sheltered bays show greater 

 resemblance to each other than any one of them does to 'Clew Bay,' 

 as shown by the following figures, each sub-area being compared to Blacksod 

 Bay, the latter sub-area containing the greatest number of species. The 

 figures show the number of species the sub-area has in common with Black- 

 sod Bay. ' Clew Bay,' 110 species, or 66 - 3 per cent. ; Clare Island, 35 species, or 



