Two Neiv Victorian Palaeozoic Sponges. 155 



anchoring spicules, a point on which, as mentioned above, 

 certainty cannot be expressed, and in part on the arrangement 

 of the ordinary spicules, which as Fig. 4 shows appear to radiate 

 from a point about one-third of the height of the sponge above 

 what is here regarded as the base. It is a much larger form 

 than ^V. sancia, Hinde.^ 



I have dedicated the species to Sir F. M'Coy, who has kindly 

 allowed me access to Rauff's great work, and has discussed 

 several points in connection with the specimen with me. 



Locality. — Found by Mr. G. Alec. Thomson, of the Bendigo 

 School of Mines, about 200 yards east of the Diamond Hill 

 State School, Bendigo, associated with Tetragraptiis fmiicosus 

 and other typical Bendigo graptolites of Lower Ordovician age. 



EXPLANATION OF PLATE XIV. 



Fig. 1. — Protospongia oblonga, n. sp., from Lancefield, slightly 



enlarged. 

 Fig. 2. — Protospongia ob/otiga, n. sp., from Lancetield, portion 



enlarged to show flesh spicules. 

 Fig. 3. — Protospongia ohlonga, n. sp., from Lancefield, hollow 



imprint of a spicule enlarged, to show occurrence 



of a fifth ray, the presence of which is indicated 



by a cylindrical hole passing down at right angles 



to the surface. 

 Fig. 4. — Stephanella Jiiaccoyi, n. sp., from Diamond Hill, 



Bendigo, slightly enlarged. 

 Fig. 5. — Stephanella maccoyi., n. sp., from Diamond Hill, 



Bendigo, doubtful indication of the presence of 



forked spicules. 



