BRTOZOA FROM S.W. VICTORIA, AUSTRALIA. 



317 



1. Catenicella cribriformis, sp. nov. Plate XYI. fig. 39. 



Zocecia wide, globose, with cribriform area below the aperture, 

 with five pores on each side ; large lateral avicularia (wings broken) : 

 linear vittae nearly to the base ; aperture rounded above (broken 

 below, probably straight) ; reverse smooth. 



This is larger than C. hastata, and has more pores ; and the lines 

 in the cribriform area are smaller. 



2. Catenicella flexuosa, sp. nov. Plate XYI. figs. 40, 41. 



Cells elongate, irregularly oval, large depressions above and at 

 the side of the aperture ; cribriform area small, with nine pores 

 (fenestras) ; aperture rounded on the distal edge, straight below. A 

 wavy thick tube on the front, which may be abnormal ; reverse 

 smooth, raised over the upper and lower part of the first zooecium 

 and over the second zooecium. 



This has some of the characteristics of C. alata, Thorns. ; and, with 

 only the one imperfect specimen, it is doubtful if it should be de- 

 scribed as new. 



3. Catenicella marginata, sp. nov. Plate XYI. figs. 44, 45. 



Zooscia nearly cylindrical, a coffin-shaped margin round the 

 zooecium, and marginal bands enclosing depressions near the aper- 

 ture of the corneous joint ; aperture rounded above, doubtful below, 

 seven distinct pores surrounded by a line ; back smooth. 



4. Catenicella ampla, sp. nov. Plate XYI. figs. 46, 50. 



Cells large, subovoid, nine large pores (fenestras) on the border of 

 a large area (scutum) ; small longitudinal ridge above the aperture, 

 with a depression on each side of it. Oral aperture rounded on the 

 distal edge, proximal edge somewhat arched. Dorsal surface with 

 a large grooved depression over the centre of each zooecium ; and by 

 the side are two long adjoining chambers, which are probably covered 

 by a membrane when living. 



The lateral chambers are very characteristic, and somewhat re- 

 semble those in C. ventricosa, Busk ; but in ventricosa they are 

 lateral but turned partly towards the front, while in the present 

 case the direction is dorsal. There is a faint median line, and 

 lines branching off to each fenestra, which are not shown in the 

 figure in consequence of the lithograph being badly put on the stone. 



Log. Mount Gambier (Lond. Geol. Soc. coll.). 



5. Catenicella alata, "W. Thorns. Plate XYI. figs. 47, 49, 58. 



Catenicella alata, W. Thorns., "On new. Genera and Species of 

 Polyzoa from Coll. of Prof. Harvey," p. 80, pi. vi. fig. 4 (Zool. Bot. 

 Assoc. Dublin, 1859, vol. i.). 



Loc. Living. Fossil, Mount Gambier {Lond. Geol. Soc. coll.). 



6. Catenicella elegans, Busk, var. Btjsklt, W. Thorns. PI. XYI. 



figs. 42, 43. 



Catenicella Buskii, Wyville Thomson, " On new Genera and 



