240 



ECHINODERMATA. 



CRINOIDEA. 



Glyptocbinus. (Species undeterminable.) 



Portions of the column of a crinoid which the late Mr. E. Billings 

 believed to be " allied to Glyptocrinus raniulosus '' were collected by 

 Professor Hind in 1858 at Punk Island and Grindstone Point. Similar 

 but rather more slender portions of columns, with the "large projecting 

 joints" farther apart, were collected by Mr. Weston in 1884 at Grind- 

 stone Point. These latter specimens are very similar to the columns of 

 Schizocrinus nodosus, as figured by Professor James Hall on Plate 27 of 

 the first volume of the " Palseontology of New York." 



VERMES. 



ANXELIDA. 



Serpulites dissolutus, Billings. 



Serpulites dissolutus, Billings 1862. Geol. Surv. Canada, Pal. Foss., vol. 



I., p. 56. 



Deer Island, J. B. Tyrrell, 1889 : a fragment, about an inch long, 

 which appears to be conspecifio with the specimen collected by Professor 

 Hind at Punk Island, and referred to on page 160. 



MOLLUSCOIDEA. 



POLYZOA. 



Rhinidictya mutabilis, Ulrich. 



Stictoporamutahilis(\>a,Ttim),'U\Tich 1886. Fourteenth Ann. Rep. Geol. and 



Nat. Hist. Surv., Minn., p. 66. 



Stictopora mutabilis, var. minor, Ulrich 1886. Ibidem, p. 67. 



Rhinidictya mutabilis, Ulrich 1893. Bryoz. Lower Silur., Minn, (advance 



copies fr. Geol. Minn. Final Rep., vol. 

 III., pt. 1) p. 125, pi. 6, figs. 2-6, and 12, 

 13 ; pi. 7, figs. 10-23, and 25-28 ; and pi. 8, 

 figs. 1-3. 



Deer Island, Lake Winnipeg, J. B. Tyrrell, 1889 : four specimens, 

 which have been identified with this species by Mr. Ulrich, who has 

 examined all the specimens collected of this and of the two following 

 species. 



Rhinidictya. (N. Sp.) 



Deer Island, J. B. Tyrrell, 1889 : a fragment of a zoarium, in reference 

 to which Mr. Ulrich writes as follows. " It is a new species of 

 Rhinidictya which I suggest that you call R. obliqua. Its zocecia are 



