356 APPENDIX. 



IV. 

 GEOGRAPHICAL DISTRIBUTION. 



In the following attempt to distribute our Sea-Anemones 

 geographically, I divide the whole British Coast into ten 

 provinces, thus (somewhat arbitrarily) denned. 



1. The Shetland, including the Orkneys, and Scotland as far as 

 Kinnaird's Head. 



2. The North Sea, including the coast from Kinnaird's Head to Spurn 

 Head. 



3. The Eastern ; from the Humber to the Thames, a flat low shore. 



4. The South-east ; from the Foreland to St. Alban's Head ; chiefly 

 chalk cliffs. 



5. The Devonian ; from St. Alban's to St. David's Head ; a rugged 

 rocky coast. 



6. The Irish Sea, to the Mull of Cantyre, including Man, and the Irish 

 shore. 



7. The Hebridean, from Cantyre to the Orkueys. 



8. The South Irish, from Carnsore Point to Mizen Head. 



9. The Atlantic, from Mizen Head to Bathlin Island. 

 10. The Channel Islands. 



A glance at the table will show that the Devonian dis- 

 trict is by far the richest in species, including two-thirds of 

 the whole. Next in fecundity to this extreme south comes 

 the extreme north, numbering, however, less than two- 

 thirds of the Devonian total. The Irish Sea, the Atlantic 

 coast of Ireland, and the Channel Isles, each claims about 

 two-thirds of the Shetland total. The province of the North 

 Sea holds about two-thirds of this last number ; and then 

 come in succession the South-east, the Eastern, and South 

 Irish, and finally the Hebridean. 



These numbers represent, of course, the state of our 

 knowledge rather than the fact. I look for additions in 

 the Devonian province, and far more in the Shetland and 

 Hebridean, of which last I know almost nothing. The 

 Atlantic province will doubtless be farther enriched, and 

 that of the Channel Isles. But I do not look for many 

 species to be added to the North Sea; and few if any to 

 the Eastern and South-eastern provinces ; — mud and chalk 

 being essentially ungenial to Sea-anemones. 



