237 



This plant has been collected partly in a more sheltered 

 locality in shallow water, and partly in the open sea in a depth 

 of about 12 meters. 



St. Thomas: In the Harbour at Charlotte Amalia. St. Croix: Of! 

 Frederikssted. 



Geogr. Distrib. : West Indies, Senegambia. 



3. Spyridia aculeata (Schimp.) Kiitz. 



KUTZING, F., Phycologia generalis, 1843, p. 377 ; Spec. Alg., 1849, p. 668; 

 Tabulse phycologica?, vol. XII, pi. 51, figs, a, b. AGARDH, J., Spec. Alg., 



Fig. 228. Spyridia aculeata var. typica. Upper end of a branch with ten- 

 dril, and two summits of ramuli. (About 18:1 and 200:1). 



