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MEDITERRANEAN PROVINCE. 



of the European and African shores of the Atlantic. 

 Bermuda has been built up by coral polyps; the 

 islands on the old world side, such as the Azores 

 and Canaries, are wholly without them. The stony 

 corals of the European seas are few, insignificant, 

 and solitary, but their distribution is very definite. 

 Of the Turbinolids, Sphenotrochus Andrewianus of 

 our western seas, and which I have found mid- 

 channel as high as the meridian of the Isle of 

 Wight, Desmophyllum S tokesii, and Gyathina Smithii, 

 form our Celtic group. Desmopliylum cristagalli 

 makes its appearance in the northern Lusitanian 

 zone, and D. *stellaria, Cyathina *cyathus, and 

 C. pseicdoturhinolia are Lusitanian and Mediterra- 

 nean. Coenocyathus Corsicus and C. anthophyllitis 

 complete the Mediterranean Turbinolids. From a 

 specimen I found in a Mount's Bay fishing-boat, I 

 expect one of these last will prove to belong to our 

 Channel fauna. 



Of the Eupsammids, BalanopTiyllia mrrucaria and 

 JB. Italica, Dendrophyllia *ramea and D. cornigera 

 are Lusitanian Atlantic, as well as Mediterranean 

 throughout, but the principal bulk of the forms 

 of this order occur in the Southern Ocean, whence 

 a few species range north on either side of the 

 African continent, our Lusitanian forms being the 

 remotest representatives. 



Cladocera *cespitosa, G. stellaria, and C. astrcearia (a 

 new species from the seas of Naples lately added by 

 Sars), with Astroides calymlaris, complete the As- 



