HOWE 



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. 



