358 APPENDIX. 



amphora pass from the sides of the moutli to the apex of 

 the avicularium in front. One large specimen presents 

 a variety worthy of note — in this the backs of aU the cells, 

 except one here and there, exhibit (internally ?) numerous 

 irregular-sized leopard-like spots. 



5. C. plagiostoma, n. sp. 



Cells short-ovoid ; avicularia very large and long, ascend- 

 ing from near the bottom of the cell into an acute spinous 

 poiut, and supporting a deep cupped cavity ; mouth placed 

 obliquely; front of cell divided iuto fine large subtri- 

 angular fenestrse by four broad bands. Back of ceU with 

 a broad central band and two narrower bands branching 

 from it on each side ; surface of spaces left uncovered by 

 the bands on the back beset with scattered, long setose 

 spines. 



Hab. — Bass Strait, 45 fathoms. 



Colour brownish white; habit stiff, branches short. 

 This species is at once recognisable by the peculiar oblique 

 position of the mouth — the enormously developed avictda- 

 rium usually only on one side of the cell, and by the 

 sculpture of the cell — which appears as if it were swathed 

 with broad tapes or bands. The wide spaces left between 

 the bands in front clearly represent the true nature of the 

 fenestrse of other species. It is the only species famished 

 with elongated setose spines. 



6. C. lorica, n. sp. 



Cellaria catenulata ? Lamarck. 



Cells elongated rhomboidal, truncated at each end. 

 Penestrse three, large, the lowest the largest, arranged in 

 a triangle. Mouth very large ; avictdaria wide and strong ; 

 two lateral areae on each side, well developed; surface in 

 front with a few indistinct circular spots around the fenes- 

 trse, and behind marked with faiat longitudinal strise. 



Hab. — Bass Strait, 45 fathoms. 



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