278 



of New York, principally in its very diminutive size, though it may prove 

 to be only a local or stratigraphical variety of that species. Rhynchospira 

 Electro, (the Retzia Electra of E. Billings)* from the Silurian rocks of 

 Maine, has a much more nearly pentagonal contour, and apparently more 

 inflated valves. 



MOLLUSCA. 



Gasteropoda. 



LoPHOspiRA, sp. indet. 



Two very imperfect and badly preserved casts of the interior of the 

 shell of specimens of a species of this genus. As previously stated, on 

 page 246, a similar cast was collected at Rainy Island, on the Attawa- 

 piskat River, by Dr. R. Bell, in 1886. 



EuoMPHALUS, or Straparollus, sp. indet. 



Two imperfect casts. 



Cephalopoda. 



Only two specimens of cephalopoda were collected at this locality. One 

 of these is an obscure fragment of an orthooeratite ; and the other a piece 

 of a rather large, slightly curved, subcylindrical siphuncle, with faint, 

 oblique and rather distant constrictions. 



B. FROM MANITOBA. 



B. 1.— FROM STONEWALL. 



Collected by T. C. Weston in 1884, by D. R. Dowling in 1891 and 

 1902, AND BY J. B. Tyrrell and W. H. Robson in 1897. 



ANTHOZOA. 



Tetracoralla. 



Aphyllostylus gracilis, Whiteaves. 



Plate 24, figs. 1 and 1 a. 



Aphyllostylus grarAUs, Whiteaves 1904. Ottawa Naturalist, vol. 



XVIII, no. 6, p. 113. 



The original descriptions of this genus and species are as follows : — 



* Proceedings of the Portland Natural History Society (1863) vol. I, p. 114, pi. 3, fig. 

 11. 



