a. Rathbun — List of the Brazilian JEchinoderms. 149 



According to the generally accepted rules of nomenclature, the 

 above name should give place to one of more modern date, and of 

 such there is an abundance in the long list of synonymy arranged 

 by M. Perrier. As, however, he is the authority for the consolida- 

 tion of several of the species included in that list, and also for the 

 determination of the only specimens that appear to be recorded 

 from Bi-azil, I prefer to retain here the old name of Linck, which he 

 has revived. Indian Ocean (Mtill. and Tr,). China; West Coast of 

 Africa, at Goree, Senegal; Bissagos and Cape Verde Isls. (Perrier), 

 Off Charleston, S. C. {Goniaster Americanus Verrill). 



Oreaster gigas (Linn.) Lutken. 



Vidensk. Meddel., 1859, p. 64; Verrill, Trans. Conu. Acad., i, p. 367, 1868. 



City of Pernambuco, and also at several places in the same pro- 

 vince to the north of the city, abundant (Geol. Comm.). Bay of 

 Bahia, abundant nearly everywhere, on sandy bottom, from low- 

 water mark to two fathoms and deeper ; Abrolhos Islands ; Cara- 

 vellas Barra (Rathbun). Abrolhos Reefs (Hartt, '67). Bahia (Per- 

 rier, Mus. Paris). St. Thomas (Ltk.). West Indies; Barbadoes ; St. 

 Vincent (Gray). Hayti; Florida (Verrill), 



Asterina marginata (Hupe) Perrier. 



Arch, de Zool. Exper., v, No. 2, p. 220, 1876. 



Brazil ; Rio de Janeiro (Perrier, Mus. Paris). Brazil (Milll. and 

 Trosch., Mus. Vienna). Specimens apparently of this species were 

 collected in the Bay of Rio de Janeiro, by Mr. Branner. Senegal 

 (Perrier). 



Luidia Senegalensis (Lam.) Mlill. and Trosch. 

 Syst. der Asterid., p. 78, 1842. 

 Luidia Marcgravii Steenstrup, in Lutken, Vidensk. Meddel., p. 43, 1859. 



Rio Formoso, Pernambuco, very abundant and often of large size 

 (Branner). One specimen, collected by Mr. Branner, had a greatest 

 diameter of more than 360"""; diameter of disk, 51""". All the 

 specimens observed had nine arms. Pernambuco (Derby, '7(», in 

 Mus, Yale Coll. ). Brazil (Perrier, Mus. Paris). Senegal; Guadeloupe 

 (Perrier). Jamaica (Browne). 



