PLATE XXXIV. 



Cyathophyllum peteaioides (page 265). 



Figure 1. Side view of a specimen from the Red Deer River, at the 



Lower Salt Spring. 

 Figure In. Longitudinal section of the same, to shew the internal 



structure. 

 Figure 2. The other half of the same specimen, shewing the base of 



attachment. 



CoLUMXARiA (Cyathopiiylloiiiks) DIS.JUXCTA (page 269). 



Figure ■'>. Natural longitudinal" section of a portion of a large colony 

 of this species, from the western shore of Dawson 

 y>a\, at the mouth of the Steep Rock River. 



Figure Sir. One of the corallites of the same, twice the natural size, 

 to shew the structure of the interior more clearly. 



Figure 3^). Transverse section of another portion of the same colony, 

 til shew the outlines of the corallites, their relative 

 arrangement and the number and proportionate 

 length of the septa. 



CvATiiopiiYLLUM PR0FUNDU.1I, Var. (page 268). 



Figure 4. Longitudinal section of tme of the corallites of a large 

 colony from Snake Island, Lake Winnipegosis, to 

 shew its internal structure and the shape of the 

 calyx. 



Figure in. Transverse section of four adjacent corallites of the same, 

 shewing the thin walls, and the numlier and length 

 of the septa. 



Cya'iiiophyllu.m Waskasknse (page 264). 



Figure ■">. Side view of a simple specimen from the Red I)eer River. 

 Figure 5a. Longitudinal section of the same, to show the internal 

 structure. 



Figure <'>. A proliferous specimen, from the same locality, shewing lateral 



gennnation. 

 Figure 7. A proliferous specimen, also from the Red Deer River 

 showing calycinal gemmation. 

 CYA'riiopnvLLu:\i Atiiabascknse, Var. (page 269). 



Figure 8. Side ^'iew of the sjiecimen fi-om Cameron Bay, Lake Winni- 



jiegnsis. 

 Figure 8^. Longitudinal sertic.m of the same. 



