481 



1. Heliania spinescens. 



Coral rather fan-like, more or less twisted ; branches, especially 

 the lower one, conical, acute, spine-like, sometimes inosculating; 

 upper branchlet subsecund. 



Hab. Philippines (Cuming). 



Fam. 2. Ellisellad^e. 



The axis solid, calcareous, not jointed. Bark granular. Cells on 

 the sides of the stem and branches separated by a lateral grove. 



a. Cell more or less elongate. 

 1. Ellisella. 



Coral tree-like, subcylindrical ; branches free. Cells numerous, 

 small, crowded. 



1. E. JUNCEA. 



2. E. ELONGATA^/ 



3. E. COCCINEA.j 



4. E. PECTINATA. 



2. SCIRPEARIA. 



Coral simple or forked ; cells subcylindrical, in two alternating 

 series. 



* Coral simple. 



5. MIRABILIS. B.M. 



S. mirabilis, Cuvier, Schweig. Beob. t. 2. f. 13. 

 Polypus mirabilis, Linn. Mus. Adolph. t. 19. f. 4. 

 Funiculina cylindrica, Lamk. 

 Hab. West Indies. 



** Coral branched, forked. 



S. DICHOTOMA. B.M. 



Coral fan-like, in a single plane, irregularly dichotomous ; cells 

 cylindrical, elongate, truncated, in a row on each side of the branches, 

 subalternate. 



Hab. Mauritius. 



b. Cells convex or sunken. 



3. Umbracella. 



Coral fan-shaped; branches and branchlets inosculating, netted. 

 Cells numerous, small, lateral. 

 No. 414. — Proceedings of the Zoological Society. 



