96 



first who gave a description of this species, which he referred to 

 the genus Udotea in accordance with Murray (1. c). 



As our plant shows exactly the same anatomical structure 



Fig. 78. Cladocephahis lideofuscus (Crouan) Borgs. 

 a—e, part of filaments in the interior, f—h, of the plectenchyma; 

 i, chromatophores. la — e, about 2(1:1; / /;, about 70:1; ?', 175:1). 



as the Cladocephahis scoparius of Howe, I have suggested their 

 identity in my paper quoted and may refer to it here. 



It was found at St. Thomas: in the sea to the west of Water 

 Island, where it was growing in a depth of about 20 — 30 meters. 

 GeogT. Distrib. \\'est Indies. 



