"200 CONTRIBUTIONS TO CANADIAN PAL.KONTOLOli V. 



greatest height is about forty mm., and the width at the summit thirty 

 two. 



Onion Point, Lake Manitoba, J. B. Tyi-rell and J. F. Whiteaves, 1888 : 

 one specimen. 



iSmall island at the extreme south end of Lake Winnipegcjsis, J. B. 

 Tyrrell, 1889 : one specimen. Red Deer River, at the Lower Halt Spring 

 (hve specimens) and at the Upper 8alt Spring (four specimens) : J. B. 

 Tyrrell, 18S9. 



This species is singulai'ly like a I'elrniii, both in its external shape and 

 internal structure, but it differs from that, genus in the development of 

 \'esicular tissue between the septa. It I'esembles the '" Zajihri'iitlx iulida" 

 (if Hall and Whitfield, from the Devonian rocks of Iowa, in many res- 

 pjeots, but differs therefrom in the almost entire absence of tabuhe. In 

 Ji. co/idn the tabulw are descriVjed as "distinct, closely arranged " and 

 " extending half the diameter of the cup." If all the specimens collected 

 by Mr. Tyrrell and the present writer had been of small size, the absence 

 (jf tabulie in them might be attributable to theii' being immature indivi- 

 duals in which these structures were not yet developed, but, as a matter 

 of fact, iiiost of the specimens of G. /n'/rnioiden are considerably largei- 

 than the largest known examples of Ji. nolida. 



Group of Cyd.tliojiJiyll mil Jii'.fagun'u/iii, (ifjldfuss.* 

 (S.) Cyathopiiyllum Anna, Whitfield. (Sp.) 



Styla^lnm Anna, Wliitficlil. ISS'2. Ann. N. Y. Aciul. Sci., p. 190. 

 1890. lb., p. .'■.20, pi. vi., figs. 1-5. 



Lake ]\[anitoba, on the east side of the Narrows, J. B. Tyrrell, 1888 : 

 (jne specimen. Dawson Bay, Lake Winnipegosis, at Whitea\es Point 

 (four specimens), and (jn a small island close to the north-west end of 

 Beardy Island (six specimens) ; J. B. Tyrrell, 1889. A single specimen of 

 a coral collected Vjy Dr. B. Bell in 1^77, from the Long Portage of the 

 Missinaibi River, in the district of Algoma, and referred to in the Rejiort 

 of Progress of this Survey for 1SK7-S8 (page 5, c) as CijiilJiujihijUmii 

 Dd/o'idsoiii, has since been found to be i-cfei-able to the present species. 



The generic name Stylnnlrim was proposed by Lonsdale in 1845, for a 

 fossil coral from the Garb Jiiiferous i-oi-ks of Russia. The type of the genus, 

 which Lonsdale described and figured under the name 8. ini-inifKiia, has 

 since been pronounced to Ije a Ldliuntrotijni, by D'Grbigny, in the "Pro- 

 drome de Paleontologie," published in l.SoO, and by Edwards and Haime 



'^" Dr. Fr(_^ch thinks that the fjjinthopliiillatit arcticum. of Meek, from tlie Devonian 

 rocks of Alaska and the Mackenzie Kiver district, is synonymous with this species, as 

 Hiigj^ested 1 >y the "writer on J'age 11)9 of tin- present volume. 



