88 MARINE POLYZOA. 



7. CELLEPORA SKENEI. PL CXXII. 



Polyzoarium much compressed, lobes bifid or trifid; cells 

 ovate, subventricose, punctated, slightly raised ; mouth orbicular, 

 with a strong mucro in front, having an avicularium on its inner 

 aspect near the apex. 



Millepora Skenei, Ellis fy Soland. ZoopJi. 135 ; Turt. Brit. Faun. 

 204 ; Stew. Elem. ii. 427. 



Cellepora palmata, Flem. Brit. Anim. 532. 



Cellepora Skenei, Johnst. Trans. Newc. Soc. ii. 267; Couch, 

 Zooph. Cornw. 4.9; Corn. Faun. iii. Ill; W. Thompson, Ann, 

 fy Mag. Nat. Hist. xv. 322 ; Johnst. Hist. Brit. Zooph. ed. 2. 

 p. 297. t. 52. figs. 6, 7, 8 ; Gray, List Brit. Rad. p. 130. 



Hob. Aberdeen, Skene. Zetland, Fleming. Coasts of Northum- 

 berland and Berwickshire, not rare, G. J. Off the Deadman, 

 "rare," R. Q. Couch. Eastern coast of Ireland, Miss Ball 

 On shell. 



8. CELLEPORA FUSCA, n. s. PI. CXIX. fig. 2. PL CXX. fig. 6. 



Polyzoarium compressed, undulated. Cells ovate, ventricose, 

 subimmersed, very irregular; mouth orbicular, with a raised, 

 regular, or unevenly thickened margin ; usually a strong rostrum 

 on one side, with an avicularium on its inner aspect ; numerous 

 scattered avicularia, of various sizes and different forms, distri- 

 buted over the polyzoariuni. (Colour deep fuscous purple.) 



Hob. Bass's Strait, Macgillivray . 



Fam. 12. ESCHARID^E. 



Polyzoarium erect, rigid, foliaceous and expanded, lobate or 

 reticulated. Cells disposed quincuncially in the same plane, on 

 one or both sides of the polyzoariuni. 



Escharidae (part.), Johnst. Brit. Zooph. i. 329. 

 Lepraliana (part.), Gray, List Brit. Rad. p. 116, & Reteporana, 

 ib. p. 130. 



SYNOPSIS OF GENERA. 



* Cells on both sides. 



1. ESCHARA. 



** Cells on one side only. 

 2. RETEPORA. 



