106 A JIONOGRAPn OF THE TERTIARY POLYZOA OF VICTORIA. 



broad tumid ving oontvnctiiif;' towards tlie orifice, which is again slightly produced 

 and Incerated or ol)scurely bilabiate. Posterior surface finely granular. 



S.P. ; M.C. 



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

 not (|uite lateral i)ut somewhat posterior. They are not quite continuous throughout 

 tlie leugtli of the zoarium, rising from the ])Osterior part of the peristome and 

 extending, but gradually becoming thinner to the base of the zoa'cium. These lines 

 a good de;d I'csemble tlie vilnccs of llotepora, and the character oC the surfaces is 

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

 regular, simply s(>parating the two as])ects. OtherAvise, there is no afhnity l)ctween 

 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 Tid)ucellariida3. 



Pamily Bitectiporid^. 



Bitectipora, v.g. 



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

 (For description see Appendix.) 



Family Celleporid^. 



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

 forming clustei'cd masses. Zofficia (adult) urceolate, irregularly heaped togethei-, 

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

 hollowed lip, with or without a sinus. 



Lekythopora, McG. 



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

 thyrostome with a deep notch in th(> lower lip and a small aviculariiun at one side ; 

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

 of whicli is the aviculariura connected with its original position by a minute semi- 

 sjiiral tube. Orx'cia projecting from the front of the zooecia beloAV the thyrostome, 

 covered by a chitinous or subcalcareous plate. 



1. L. lujstrix, McG. PI. XIV., figs. 1, 2. 

 Lekythopora kystrix, McG., P.Z.V., 15G ; Waters, Q..T.G.S., 1886, p. 308. 

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



