﻿516 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



Paga. 



Figs. 2, 2a. Two viewa of a cotype in which the septa are aubequal in promi- 

 nence around the calicea. 



2. General view of the corallum, natural size 430 



2a. Calicea and aeptocoatae, X4 430 



3, 3a. Two viewa of a specimen intermediate in its septal and septo-coatal 



characters between the preceding specimens. 



3. View, natural aize 431 



3a. Calices and septo-costae, X4 43i 



Plate 111. 



Pironastraea anguillensis, new species. 



Figs. 1, la, 16. Three views of the holotype. 



1. Part of upper surface, natural size 433 



la. Part of lower surface, natural size 433 



16. Valleys and collinea, X5 433 



Plate 112. 



Figs. 1, la. Pironastraea anguillensis, new species. Two views of paratype. 



1. Part of upper surface, natural aize 438 



la. Valleys and collinea, X5 433 



2, 2a. Pironastraea antiguensis, new species. Two views of the holotype, 

 from Antigua. 



2. Upper surface, natural size 434 



2a. Part of upper surface, X5 434 



Plate 113. 

 Pironastraea antiguensis, new species. 



Figs. 1, la. Two views of a specimen from near Guantanamo, Cuba. 



1. Part of upper surface, natural size 434 



la. Part of upper surface, X5 434 



Plate 114. 



Figs. 1. Siderastrea radians (Pallas). Calices, X6, of a specimen from off Cocoa- 

 nut Point, Andros Island, Bahamas 439 



2, 3. Siderastrea siderea (Ellis and Solander). 



2. Calices, X6, of a specimen from Guanica Centrale, Porto Rico 444 



3. Calices, X6, of another specimen, the usual form of the species, also 



from Guanica Centrale, Porto Rico 444 



4, 4a. Siderastrea siderea var. dominicensis , new variety. Two views of 

 the type. 



4. Corallum, natural size .j, 447 



,4a. Calices, X6 447 



Plate 115. 



Figs. 1, la. Siderastrea pourtalesi, new species. Two views of the type. 



1. Corallum, natural size 440 



la. Calices, X 6 440 



2, 2a, 26. Siderastrea stellata YerviW. Three views of the same specimen. 



2. Corallum, one-half natural size 440 



2a. Part of surface above the lower edge, X 2 .... : 440 



26. Summit calices, X 6 440 



