THE EUROPEAN SEAS. 



147 



Atlantic and Mediterranean. Myriozoum cune- 

 atum, common to the whole Mediterranean and 

 so abundant in the Adriatic, is said by Ehren- 

 berg to occur in the Red Sea. Reptotubigera 

 tubulifera, Entalophora proboscidea, Proboscina ser- 

 pens, and Berenicea prominens are Lusitanian and 

 Mediterranean. The last two are found on the 

 opposite sides of the Atlantic. One species of 

 Homera completes the Mediterranean series of 

 Tubulinar and Foraminated Bryozoa. 



Of the Cellulinear order, Acamarcliis neritina in- 

 cludes the Mediterranean in its ubiquitous range. 



Pherusa tubulosa, Reptofiustra impressa and de- 

 pressa are Lusitanian and Atlantic. R. membra- 

 nacea of our seas ranges north, but not south. 



Reptolectrina dentata and pilosa extend from the 

 Scandinavian region to the Canaries and into the 

 Mediterranean. Chelidonia cordieri and Aetea an- 

 guina range from the Mediterranean to the Cana- 

 ries ; the latter is British. 



Tubucellaria opuntoides is equally common in 

 Sicilian seas as on the coast of Algeria ; our com- 

 mon Cellaria salicomia reaches the Mediterranean. 



Of the Escharce of our seas, E.foliacea and E, 

 fascialis, the latter reaches the Mediterranean. E. 

 cervicornis is Lusitanian and Mediterranean ; there 

 are also forms of Retepora and Semieschara. 



Hippothoa, with only a few species, and with a 

 wide distribution, has one or two forms which have 



