106 A MONOGRAPH OF THE TERTIARY POLTZOA OF VICTORIA. 



broad tumid ring contracting towards the orifice, which is again slightly produced 

 and lacerated or obscurely bilabiate. Posterior surface finely granular. 



S.P. ; M.C. 



The lines separating the anterior from the posterior surface of the zocecia are 

 not quite lateral but somewhat posterior. They are not quite continuous throughout 

 the length of the zoarium, rising from the posterior part of the peristome and 

 extending, but gradually becoming thinner to the base of the zooecium. These lines 

 a good deal resemble the vibices of Hetepora, and the character of the surfaces is 

 different, as in that genus. They, however, do not spread or divide, but are quite 

 regular, simply separating the two aspects. Otherwise, there is no affinity between 

 the genera. There can, I think, be no doubt of the propriety of establishing a new 

 family for the reception of this species, its nearest allies being the Tubucellariidse. 



Family Bitectiporid^:. 



Bitectipora, n.g. 



B. lineata, n.sp. PI. XIII., fig. 20. 

 (For description see Appendix.) 



Family Celleporid^e. 



Zoarium encrusting or more or less free and uni- or bilaminate, or dendroid, or 

 forming clustered masses. Zocecia (adult) urceolate, irregularly heaped together, 

 the upper parts being free ; thyrostome terminal, subcircular, or with a straight or 

 hollowed lip, with or without a sinus. 



Lekythopora, McG. 



Zocecia flask-shaped or elongated, oblique or erect and crowded ; primary 

 thyrostome with a deep notch in the lower lip and a small avicularium at one side ; 

 peristome becoming produced into a long tubular orifice, on one side of the margin 

 of which is the avicularium connected with its original position by a minute semi- 

 spiral tube. Ooecia projecting from the front of the zocecia below the thyrostome, 

 covered by a chitinous or subcalcareous plate. 



1. L. Injstrix, McG. PL XIV., figs. 1, 2. 

 Lekythopora hystrix, McG., P.Z.V., 156; Waters, Q.J.G.S., 1885, p. 308. 

 S.P. ; M.C. ; B. ; C.B. ; M. Living. Australia. 



