38 FLABELLUM BRAZILIEXSE. 



PARACYATHUS M.-Edw. & H. 



Paracyathus De Pilippii Ducn. & Mich. 



Paracyathtis confertus Pocrt. 



The Paracyathus described by Duchassaing and Michelotti under the above 

 name is undoubtedly a young one not fully developed, as the figure certainly 

 shows. Having frequently found specimens answering as nearly to their 

 figure and description as a comparison is possible, associated with the larger 

 ones to which I have given the name of confertus, I suspect them to be one 

 and the same. 



The characters are very variable, the type figured in my "Deep-Sea Corals," 

 Plate VI., Figs. 11, 12, 13, passing into another with deejily sunk columella, 

 the jaapillfB of which are partly twisted like those of a Caryophyllia or Tro- 

 chocyathus, well-defined pali rising much higher, more exsert septa, and a 

 more regular shape. This latter type is the most common at Barlaados, the 

 other in Florida. The great variability of these forms inclines me to believe 

 that P. Agassisii Dune, can scarcely be separated specifically from the West 

 Indian form. 



DESMOPHYLLUM Eiirbg. 



DesmophyUum Cailleti Duch. & Mich. 



This species appears to be common off Barbados in 100 fathoms. I have 

 become convinced, by the examination of a series of specimens of different 

 ages, that the coral described by me under the name of Galaxea ebnrnea (111. 

 Cat. Mus. Comp. Zool., No. IV.) is only a young Desmophyllum, but of a spe- 

 cies with thicker septa than D. Cailleti. 



FLABELLUM Lesson. 



PlabeUum braziliense n. sp. 



PI. VI. figs. iG, 17. 



Corallum pedicellate, conical (greatest angle about G5°), compressed with 

 rounded angles ; costJB prominent ; fossa deep ; calicle long, elliptical, diame- 

 ters as 10 to 21 ; septa not e.xsert ; five cycles, primaries, secondaries, and ter- 

 tiaries nearly equal. A rudimentary lamellar columella. Height 16 mm., 



