EEPORT ON THE BOTANY OF THE ATLANTIC ISLANDS. 29 



Caulerpa mexicana, Sonder. 



Caulerpa mexicana, Sonder; Kiitz., Sp. Alg., p. 496; Harv., Nereis Bor.-Am., iii. p. 16, t. 37, A. 



Fernando-Noronha. Moseley. 



Gulf of Mexico ; Florida Keys ; Bermudas ; Cape Verde Islands. 



Caulerpa webbiana, Mont. 



Caulerpa webbiana, Mont., SylL Gen. et Sp. Crypt., p. 453 ; Dickie in Journ. Linn. Soc. Lond., xiv. 

 p. 364. 



Fernando-Noronha. Darwin. 

 Canary Islands. 



Halimeda opuntia, Lamour. 



Halimeda opuntia, Lamour.; Kiitz., Sp. Alg., p. 504; Harv., Nereis Bor.-Am., iii. p. 23, t. 40, B; 

 Dickie in Journ. Linn. Soc. Lond., xiv. p. 364. 



Fernando-Noronha. Moseley. 



Florida, West Indies, and widely dispersed in warm seas. 



Ulvace^e. 



Enteromorpha ? 



Enteromorpha 1 ex Dickie in Journ. Linn. Soc. Lond., xiv. p. 365. 



Fernando-Noronha. Moseley. 



So very imperfect that the genus only can be indicated ; it seems nearly allied to 

 Enteromorpha clathrata, Grev. 



Kallonema obscurum, n. sp. 



Kallonema obscurum, n. sp., Dickie in Journ. Linn. Soc. Lond., xiv. p. 365. 



Frons capillaris, undulata, pallide virescens, vage et irregulariter ramosa, e cellulis 

 subquadratis laxe connexis formata. 



Fernando-Noronha. Moseley. 



The specimens are very fragmentary, mixed with some of the following in rock-pools. 



Ulva lobata, Ktitz. 



Ulva lobata, Kiitz., Sp. Alg. ; Dickie in Journ. Linn. Soc. Lond., xiv. p. 365. 



Fernando-Noronha. Moseley. 



Chili ; Cape of Good Hope ; Mauritius ; Ceylon ; Macao ; Singapore. 



