436 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



cations, he does not follow the accepted canons of systematic zoology, 

 an instance being in his application^ of Parastraea,'^ originally named 

 by Milne Edwards and Haime, to a species, Parastraea grandiflora, 

 erroneously referred to Parastraea by Reuss. There are in the 

 United States National Museum specimens of this species received 

 from Professor Felix; they belong to a genus of fungid corals related 

 to Diploastrea Matthai, but I am not decided as to their generic 

 identification. However, they most emphatically do not belong to 

 Parastrea. Other instances of similar errors in Felix's work might 

 be mentioned. 



In order to present properly the systematic affinities of the species 

 of Siderastrea that need to be considered in this paper, it is desirable 

 to discuss all Oligocene and later species known from the West 

 Indies, Central America, and the southeastern United States. S. 

 stellata VerrUl from Brazil is also included. 



Siderastrea is represented in the living Caribbean and Floridian 

 fauna by S. radians (Pallas) and -S'. siderea (EUis and Solander). 

 The fossil species hitherto described from the West Indies are as 

 follows : 



S. conferta (Duncan)^ (as Isastraea) from Antigua. 



S. crenulata var. antillarum Duncan ^ from Santo Domingo. 



S. grandis Duncan ^ (syn, of S. siderea) from Jamaica. 



8. pariana (Duncan)^ (as Astraea) from St. Croix, Trinidad. 



8. confusa (Duncan") '^ (as Isastraea) from St. Croix, Trinidad. 



8. hexagonalis Vaughan^ from the Eocene Clayton limestone, 

 Prairie Creek, Alabama. 



8. clarM Nomland ® from the Oligocene Agasoma gravidum zone, 

 Contra Costa County, California. 



8. mendenJialli Vaughan,^" Pliocene, Carrizo Creek, California. 



8. calif ornica Vaughan," Pliocene, Carrizo Creek, California. 



Neither the Calif ornian species nor the Eocene 8. Jiexagonalis will be 

 specially considered here. 



Duncan's 8. crenulata var. antillarum is probably a synonym of 

 8. siderea; his 8. grandis is certainly a synonym of 8. siderea. Addi- 



1 Palaeontographica, vol. 49, p. 181, 1903. 



2 Parastrea Milne Edwards and Haime, Comptes. Rend., vol. 27, p. 495, 1848; examples Astrea rotulosa 

 and A. ananas Lamarck. Placed in the synonymy of Favia by Milne and Haime, Hist. nat. Corall., vol. 

 2, p. 426. 



8 Geol. Soc. London Quart. Journ., vol. 19, p. 422, pi. 14, fig. 2, 1863. 



* Idem, p. 435. 



6 Idem, p. 441, pi. 16, figs. 5a, 56. 



8 Geol. Soc. London Quart. Journ., vol. 24, p. 14, 1867 



' Idem, p. 14, pi. 2, fig. 6. 



8 U. S. Geol. Survey Mon. 39, p. 155, pi. 18, figs. 1^, 1900. 



9 Univ. Calif. Pub., Bull. Dept. Geology, vol. 9, p. 65, pi. 5, figs. 3, 4, 1916. 



10 U. S. Geol. Survey Prof. Pap. 98-T, p. 374, pi. 101, figs. 3, 3o, 4, and var. minor, Idem, p. 375, pi. 102, 

 fig. 1, 1917. 

 " Idem, p. 375, pi. 102, figs. 2, 2a, 3, 4. 



