400 BULLETIN" 103, UNITED STATES NATIONAL MUSEUM. 



SYNONYMY OP SOLENASTREA BOURNONI. 



Of the species described by Duchassaing and Michelotti, Cyphastrea 

 oblila, Plesiastrea carpinetti, Solenastrea ellisii, Solenastrea micans, 

 and Leptastrea caribxa can confidently be placed in this synonymy. 



I examined in the Museum of Natural History in Turin a specimen 

 labeled Cyphastrea oblita Duchassaing and Michelotti, but it is a 

 small caliced corallum of Orbicella annularis (see p. 374 of this paper), 

 and it does not accord with the original description of C. oblita, 

 which is as follows: "Species rounded, with rounded calices, the 

 margins of which are a little elevated ; costae rare, almost confluent ; 

 the intercalicular areas are beset with granulations: columella, large 

 and papillary." 



In a note it is stated the septa of C. oblita bear small, subpaliform 

 lobes. It seems to me more probable that the type is the specimen 

 in the Museum d'Histoire Naturelle, Paris, figured by me in United 

 States Geological Survey Professional Paper 98-T, plate 99, figures 

 3, 3a. 



The original description of P. carpinetti is as follows: "The form of 

 the corallum is convex and lobed; the calices are small, and often 

 slightly deformed with prominent margins, separated by distinct 

 costae and vesicular tissue: the septa are finely denticulate and do 

 not attain a length of one-third the radius of the calice because of 

 the development of the pali. The last are thick, as strong as the 

 septa, when examined with a lens they appear covered with granu- 

 lations; the columella is formed by papillae similarly granulate." 



Solenastrea ellisii, according to Duchassaing and Michelotti, "has 

 for a synonym the Astrea pleiades figured in the work of Ellis and 

 Solander, Nos. 1 and 4 of plate 53." There is a specimen, probably 

 the type, in the Museum of Natural History at Turin, labeled Solen- 

 astrea ellisii. It has small calices, 2 mm. in diameter, and three 

 cycles of septa, the members of the last cycle are very small. 



The original description of Solenastrea micans is as follows: 

 "Corallum orbicular, with crowded calices, circular, but often de- 

 formed, diameter about a line [2 mm.]; their upper margin is free, 

 projecting above the rest of the surface; the septa are very echinu- 

 late and thicken outwardly; the columella is thick and vesiculate." 

 St. Thomas. 



The calices of the type are crowded; 2 to 3 mm. in diameter. 

 Septa in two complete cycles, with a few tertiaries; primaries and 

 secondaries of the same size 



The original description of Leptastrea caribaea is as follows : " Species 

 globular, with calices almost contiguous, circular, margins elevated; 

 columella simple, septa alternately smaller." St. Thomas. 



Calices of the type, 2 to 2.5 mm. in diameter; margins slightly 

 elevated. Septa of the last cycle rarely fused to the sides of the 



