483 



between the two families, having the corky axis of Subergorgia and 

 the regularly disposed cells of the Annelladce, M. Milne-Edwards 

 (Coralliaires, i. 190) thinks that it may perhaps be a Solanderia. 



Fam. 4. Annelladce. 



Coral branched ; branches cylindrical, of equal diameter. Cells 

 equally scattered on all sides of the branches ; bark granular. Axis 

 solid, calcareous, continuous. 



1. Annella. 

 Coral netted ; branchlet inosculating. 

 Annella reticulata, Gray, P. Z. S. 1857, p. 287. 



Fam. 5. Primnoad^e. 

 Primnoadce, Gray, P. Z. S. 1857, p. 285. 



* Cell catnpanulate ; scales large, 



1. Primnoa. 



Coral tree-like, forked. 



f Coral tree-like, branched. 



1. P. LEPADIFERA. 



Hab. Mediterranean. 



f f Coral simple, with simple spreading branches, 



2. P. Antarctica, Valenc. Voy. Venus, t. 12. f. 2. 

 Hab. Falkland Islands. 



** Cells tubular, incurved ; scales small, 

 2. Primnoella. 

 Primnoella, Gray, P. Z. S. 1857, p. 286. 



Coral simple. Cells numerous, in close whorls, closely pressed to 

 the stem. 



P. Australasia, Gray, P. Z. S. 1849, p. 146. t. 2. f. 8, 9, 



The calcareous axis, described as Virgularia australis by Lamarck, 

 Hist. A. S. V. ii. 648, is, I believe, the axis of this coral, or of a 

 very nearly allied species. Seba, Thes. iii. t. 111. f. 2, to whom 

 Lamarck refers, properly represents these axes as attached. 



Hab, Australasian Sea, Bass Strait : on oyster-shells and stones. 



