126 THE VOYAGE OF ELMS. CHALLENGER. 



Enteromorpha percursa, J. G. Agardb. 



Enteromorpha percursa, J. G. Agardh, Alg. Med., p. 15 ; Rein in Bericht Senckenb. Naturf. Gesellsch., 



Frankf. am M., 1873, p. 153. 

 Schizogonium percursum, Kiitz., Sp. Alg., p. 351. 



Bermudas. Rein. 

 Atlantic and Baltic. 



Ulva lactuca, Linn. 



Ulva lactuca, Linn. ; Kiitz., Sp. Alg., p. 474 ; Rein in Bericht Senckenb. Naturf. Gesellsch., Frankf. 

 am M., 1873, p. 153. 



Bermudas. Kemp; Rein. 



Mediterranean ; eastern Atlantic, from Britain to the Cape of Good Hope ; Mauritius ; 

 China. 



Ulva latissima, Kiitz. 



Ulva latissima, Kiitz., Phyc. Germ., p. 244, t. 20, fig. 4, et Sp. Alg., p. 474 ; Harv., Nereis Bor.-Am., 

 iii. p. 59 ; Dickie in Journ. Linn. Soc. Lond., sv. p. 489. 



Bermudas. Moseley; Kemp; Rein. 

 Generally diffused. 



Monostroma orbiculatum, Thuret. 



Monostroma orbiculatum, Thuret, ex Farl., Alg. Exsic. Am. Bor., n. 173. 



Bermudas. Farlow. 



Phycoseris linza, Kiitz. 



Phycoseris linza, Kiitz., Phyc. Gener., p. 296, et Sp. Alg., p. 475 ; Harv., Nereis Bor.-Am., iii. p. 59 ; 

 Kemp in Canad. Nat. and Geol., May 1857 (Ulva linza, Linn.) 



Bermudas. Kemp; Rein. 

 Very widely spread. 



CoNFERVACE^E. 



Cladophora glaucescens, Kiitz. 



Cladophora glaucescens, Kiitz., Sp. Alg., p. 403 ; Harv., Nereis Bor.-Am., iii. p. 77 ; Rein in Bericht 

 Senckenb. Naturf. Gesellsch., Frankf. am M., 1873, p. 153. 



Bermudas. Rein. 



North Sea ; North Atlantic ; Mauritius ; North Pacific. 



Cladophora laetevirens, Kiitz. 



Cladophora htlevirens, Kiitz., Phyc. Germ., p. 214, et Sp. Alg., p. 400; Harv., Nereis Bor.-Am., 

 iii. p. 82; Rein in Bericht Senckenb. Naturf. Gesellsch., Frankf. am M, 1873, p. 153. 



Bermudas. Rein. 



Baltic ; North Sea ; Cherbourg ; Mediterranean ; Vancouver Island. 



