696 ZOOPHYTES. 



Corallum very ramose ; subflabellate, branchlets very small, flexuous 

 in zigzag, often coalescent; calicles infundibuliform, internally 

 striate; margin crenulate. 



East Indies 1 Lamarck. 



This description is from Lamarck. He states that the specimens 

 resemble in shape the flabelliformis, but the cells are much larger and 

 different in their character. Both the large and small branches are 

 coalescent. 



Oculina infundibulifera, Lamarck, No. 7. , Blainville, Man., p. 380. 



4. ALLOPORA GEMMASCENS. (Esper.) Dana. 



A. ramosa, flabellata, subcompressa, scepius secunda, ramulis extremis 

 crassioribus, fere lineam latis. Corallum cellis '" latis, prominulis, 

 margine crenulatis ; tuberculis minutis asperatum. 



Ramose, flabellate, somewhat compressed and mostly secund ; outer 

 branchlets quite stout, nearly a line thick. Corallum having the 

 cells half aline broad, a little prominent; margin crenulate, surface 

 rough with minute tubercles. 



East Indies. 



This species, as figured by Esper, is very distinct from the prece- 

 ding in its stouter branchlets and much larger cells. 



(8. bella. A specimen obtained by J. P. Couthouy, in the Paumotu 

 Archipelago, has nearly the characters of the gemmascens, in the size 

 of the branches and calicles; yet as it differs in having the crenula- 

 tions of the margin obsolete, it is separated as a distinct variety at least, 

 if not a different species. The cells are nearly funnel-shape, about 

 two-thirds of a line broad, and have a flaring aperture, with about 

 twenty -four oblong cellules or pores arranged around the margin. 

 The specimen is but one and a quarter inches high, and is sparingly 

 branched and smooth, with the base nearly two lines wide, and the 

 branches little less than a line at the apex. (Plate 60, fig. 6, natural 

 size ; 6 a, enlarged.) 



Madrepora gemmascens, Esper, Pflanz. Fortsetz., i. 60, tab. 55 ; " Madrepora ramosa, 

 subcompressa, albida, ramulis poriformibus ; stellis tubulosis, crenatis, laminibus obtusis, 

 crassiusculis, superficie tuberculis exasperata.'^ 



The Oculina gemmascens, of Ehrenberg, (op. cit, G. xlviii., sp. 2), is the jlahclli- 

 formis. 



