396 ZOOPHYTES. 



supernl " crassis. Corallum caliculis prominentibus, 1J'" latis ; 

 superne obliquis et aperturd ellipticis, et paulo prominulis, inferne 

 erectis et rotundatis et ad basin super fide tumidd radiate striatuld cir- 

 cumdatis ; lamettis paululum exsertis. 



Arborescent, (1J feet high,) loosely ramose, sometimes coalescing; 

 stem 6 to 8 inches thick, branches and branchlets slender, attenuate, 

 often 2 to 4 inches long, and above of an inch thick. Corallum 

 with prominent calicles, about 1 \ lines broad ; towards the summits 

 oblique, with an elliptical aperture, and but little prominent; below 

 erect and circular, and surrounded at base with a tumid elevation, 

 which is faintly radiate-striate. 



Figure 29, page 67. 



West Indies. St. Thomas. Ehrenberg. 



A neat arborescent species, with rather distant branchings, flexuous 

 branchlets, and shallow calicles. On the branches the calicles are 

 surrounded at base by a depression, and outside of this, a low elevation, 

 which is marked radiately with faint striae. This prominence some- 

 times looks like a low rounded ridge between adjoining calicles. The 

 species is much larger than the dijfusa, with the branchlets much 

 longer. The oblique calicles at summit and more slender branchlets, 

 distinguish it from the varicosa. The above description was taken 

 from specimens examined by the author. 



Oculina pollens, var. /3. Ehrenberg, G. xlviii. sp. 4. 



8. OCULINA VIRGINEA. (Linnceus.) Blainvilk. 



O. ramosa, ramis gracilibus (1-3'"), divaricatis et tortuosis. Coral- 

 lum caliculis 1-1^'" latis, paucis, scepe alternatim dispositis, undique 

 usque ad apicem, prominulis et erectis ; lamellis subcequalibus, pau- 

 lulum exsertis. 



Ramose, branches slender ( 1 to 3 lines in diameter), divaricate and 

 tortuous. Corallum with the calicles 1 to 1J lines broad, often 

 alternately arranged, every where even to the summits of the 

 branches, prominent and erect; lamellse nearly equal, a little exsert. 



