84 PKOCEEDINGS OP THE NATIONAL MUSEUM vol. 83 



of the type, serially arranged, united directly by the septo-costae, any 

 intercorallite wall being absent. The septa are slightly exsert, lam- 

 inar, irregularly perforate as in Leptophyllia, thin, equal, laterally 

 granulated, united by endotheca and synapticulae. In one calicular 

 center, 8 by 10 nun, there are 60 septa, all of which extend to the 

 columella. The columella is parietal, moderately developed, spongy 

 in appearance in the calices but not prominent when seen in cross 

 section. 



Medsweements. — The holotype measures : Height, 42 mm ; basal di- 

 ameters, 8 by 10 mm; diameters 10 mm below calices, 12 by 23 mm; 

 length and width of series, 29 by 6-12 mm. 



Holotyye.—J].^:^M. no. 74479. 



Occurrence. — From a locality near Catadupa, Jamaica (Trechmann 

 collection), 



Retnarks. — This species fits the generic characters of Bermosiiulia 

 as discussed by Koby (1889, p. 546). Ogilvie (1897, p. 258) later 

 considered Koby's genus a synonym of Dlplaraea. Koby does not 

 mention the condition of the wall in Dermosmilia^ but Ogilvie states 

 that a true wall is not present, but that septal thickening and exo- 

 thecal development form an outer wall. In the present species the 

 septal thickening is not apparent, the septa being of nearly equal 

 thickness throughout, and the entire structure of the corallum is like 

 Physoserls Vaughan (1905, p. 396), except for the colonial form 

 of the corallum. All the species at present referred to Diplaraea., 

 except D. venezicelensis Gregory, are from the Upper Jurassic, al- 

 though its nearest relation, Haplaraea Milaschewitsch, a solitary 

 form, occurs also in the Senonian of Europe (Oppenheim, 1930, p. 

 26 ff.). D. venezuelensis Gregory (1927, p. 441), from the Urgonian 

 of eastern Venezuela, is a species with larger branches and more septa, 

 only a part of the latter, however, reaching to the columella. 



Family ANABACIIDAE Duncan 



Genus CYCLOLITES Lamarck, 1801 



CYCLOLITES JAMAICAENSIS, new species 



Plate 3, Figures 1-4 



Description. — Corallum simple, free, circular or slightly elliptical 

 in outline, flat on the base or slightly concave, convex above, with a 

 circular fossette 2 to 3 mm in depth. Wall of corallum horizontal, 

 indistinct. The base is covered by a thick, concentrically wrinkled 

 epitheca. The septa are numerous, thin, straight, not uniting, 

 trabeculate, and fenestrated, those of the first three cycles, which 



