33. CLATHEARIA. 



11 



"More slender than any of the preceding; branches not on a 

 plane, and rarely coalescing. Axis pale red." Dana. 



85. Mopsella gracilis. B.M. 



Coral very slender, thread-like ; joints elongate, slender, pale red ; 

 articulations only slightly swollen ; branches divaricating, the first 

 rather rounded at the base. 



Mopsella gracilis, Gray, P. Z. 8. 1859, p. 486. 



Hab. ? 



33. CLATHRARIA. 



Coral shrub-like ; branches cylindrical, erect, tortuous, interoscu- 

 lating, of nearly equal thickness ; branchlets, some free, blunt. Bark 

 thin, granular. Cells small, immersed, nearly equally scattered on all 

 sides of the branches ; buds and branches from the swollen joints ; joints 

 elongate, white, longitudinally striated ; internodes red, spongy. 

 Clathraria, Gray, P. Z. S. 1859, p. 486. 



86. Clathraria rubrinodis. 



Coral-branches cylindrical, nearly of equal thickness. 

 Clathraria rubrinodis, Gray, P. Z. S. 1859, p. 486. 

 Mopsea bicolor, Kott. Icones Hist. p. 142, t. 19. f. 42. 



Hab. ? 



Fig. 3. 



B.M. 



Clathraria ruhnnodis. 



