Proto. 



782 



Protospongia polynema, Dawson. Trans. R. S. Can* 



rrptosponcjic^ 

 deluatuIcL 



Vo/.V/f 



f)L3 . 





1889, Vol. VII, page 42, wood cut 11, part of base of large 

 specimen ; plate 3, fig. 5, appearance of fossil on slate. — With 

 this are given two figures of P. delicatula ; (a) a restoration ; 

 (J) enlargement of part of base. — //. 



Protospongia tetranema, Dawson. Trans. R: S. Canada, 



t 



7ra7is,R:SXcaz . VoL7, 



Vol. 7, 1889, page 37, wood cuts l,a small specimen restored; 2^ 

 anchoring spicules slightly enlarged. Plate 3, figs. 1, 2, appear- 

 ance of the sponge on the Lower Silurian (Queiec group) 

 slate. 7Z 



Noo'E. For other Sponges found with the above described, at 

 Metis bay, in the «a,me Ordovician rooks, see Acanthodictya 

 hispida, Cyathospongia quebecensis Hyalostella me- 

 tissica, Halichondrites confusus, Lasiothrix curVicos- 

 tata, and L. flabellata, all Dawson and Hinde, in the Appen- 

 dix. With these are found confused masses, isolated groups 



