HOWE 



*L0 



PLATE 1 



Fig. 1. — Lithophyllum homogeneum, n. sp. Photograph of all of the embedded material, from 

 above head of Governor's Bay, St. Bartholomew (T. W. Vaughan, Station No. 6923). 

 Natural size. 



Fig. 2. — Lithothamnium concretum, n. sp.. Photograph of nearly free specimens from Hodge's 

 Bluff, Antigua (T. W. Vaughan, Station No. 6862). Natural size. 



