94 A MONOGRAPH OP THE TERTIARY POLYZOA OP VICTORIA. 



6. S. intermedia, n.sp. 



Zooecia elongated, separated by very fine raised lines, a row of large round 

 pores along the margins ; thyrostome rounded above, contracted below, and having 

 a squared median denticle; four large spines on the upper edge; immediately below 

 the lower lip a round pore which is probably avicularian. Immediately above the 

 thyrostome is a circumscribed area, the front wall broken in the specimens, which is 

 probably avicularian. 



M.C. 



7. S. lateralis, n.sp. PI. XII., fig. 25. 



Zoarium crustaceous. Zooecia distinct, separated by narrow raised lines with, a 

 row of areolations close to the margins; thyrostome somewhat triangular, with a 

 long spout-like sinus below ; three spines above and a broad median denticle on the 

 lower lip ; on one side of the sinus a long raised avicularium extending half-way or 

 more up the aperture and frequently obscuring the sinus, the mandible directed 

 upwards. Ooecia globular, usually with two fenestras or areolations. 



B.; M. 



A well marked and very interesting species. 



8. S. porinoides, n.sp. PL XIII., fig. 1. 



Zoarium bilaminate. Zooecia very long, separated by distinct raised margins, 

 convex, anterior surface with numerous small round pores; thyrostome nearly 

 semicircular, the peristome raised, with a small spout-like sinus and a squared 

 internal denticle ; a distinct peristomial pore on each side close to the margin. 



B.R. 



9. S. oculata, McG. PL XII., fig. 22. 



Smittia oculata, McG., T.B.S.Y., July, 1882. 



Zoarium crustaceous. Zocecia elongated, separated by prominent raised 

 margins; surface with large fenestrae or pores; thyrostome horseshoe-shaped or 

 rounded ; peristome forming secondary aperture much thickened ; a median denticle 

 in front of which is an avicularium of great size. Ooecia prominent, slightly 

 granular or with a few (usually two) large pores. 



S.P. 



The above description has been taken from recent sjDecimens. 



10. S. modesta, n.sp. PL XII., fig. 23. 



Zocecia small, indistinct ; surface with close-set round pores ; thyrostome 



