Descriptions of New, or Little Known, Polyzoa. 127 



which also occurs in several other cyclostamata, attention to 

 which was first, I believe, called by Mr. Waters in his paper 

 on the " Bryozoa of the Bay of Naples." 



Discoporella echinata, n. sp. Fig. 4. 



Zoarium usually orbicular, bordered ; cells arranged in 

 irregular rows or confused ; peristome produced, entire, 

 notched, or divided into several processes ; numerous long, 

 fine spines growing irregularly from the surface of the cells ; 

 cancelli numerous, rounded, denticulate at the orifice (as 

 also usually are the cells). 



Port Phillip Heads. Found also by Mr. J. B. Wilson. 



I have some doubt whether this may not prove to be a 

 variety of Busk's D. ftmhriata, from which, as usually seen, 

 it differs chiefly in the numerous spines springing from all 

 parts of the cells, which give it a very distinctive appearance. 

 These spines also spring from other parts of the zoarium. 



Fasciculipora bellis, n. sp. Fig. 2. 



Cells in small, cylindrical, erect fascicles, mostly opening 

 at the summit by prismatic orifices ; one or two series open- 

 ing lower down, the upper of these frequently partly 

 separated and their orifices reaching to the same level as 

 those of the chief mass of the bundle; surface minutely 

 punctate. 



Port Phillip Heads. 



A small and very beautiful species, of which I have only 

 seen one specimen. In this there are six or seven fascicles 

 spread over a small calcareous nodule, and connected by a 

 calcareous punctate or perforated crust. When viewed 

 vertically they suggest a resemblance to a composite flower 

 on the end of its pedicle. 



Fascieulipora fruticosa, n. sp. Fig. 5. 



Zoarium branched, the main branches mostly horizontal, 

 with numerous short branches turned upwards, the secondary 

 branches consisting of bundles of cells, all opening termi- 

 nally by closely packed prismatic orifices ; surface punctate, 

 longitudinally faintly sulcate and (especially in older parts 

 and on the back) transversely corrugated. 



Port Phillip Heads. 



This species is closely allied to F. ramosa (D'Orb), of 

 which also I have a small specimen, found by Mr. Maplestone 

 at Portland, but from which it is evidently quite distinct, 



