WHITEAVES. 



. ] DEVONIAN FOSSILS OP MANITOBA, ETC. 303 



of the type of the genus, the M. aioiHntus of Sowerby," and that a new 

 genus or subgenus would probably have to be constituted for the recep- 

 tion of the little group of species, including the present one, of which M. 

 trnncatus is the type. For this new genus the name Ki'forxfnnia has been 

 recently proposed by Professor M. Neumayr, in a paper published since 

 his death by the Royal Academy of Sciences of Vienna.* 



On the other hand, it is only proper to add that, su far back as 18-51, 

 Griinewaldtt claimed that the MegaJodus trnncatus of Goldfuss is a Myo- 

 pho7-ia. Dr. Freeh, also, in a paper upon 2[i'rijn<i<hin and Myo]ilK)ria,\ 

 places Goldfuss's species in the group of Jfyophoria ttnngafa, and 

 maintains that it belongs to the older Trigoniada?. Dr. Freeh thinks that 

 all the species figured by Hall under the name Schizodus, on Plate Ixxv 

 of vol. V, pt. 1 (Lamellibr., 2) of the Paheontology of the State of New 

 York, belong to the genus Mynjilioria and that the name Scliizodus should 

 be restricted to the Permian species. According to this view, the fossil 

 from the Hay River, which is referred to Schizodus Chemung crisis on page 

 241 of the present volume and figured on Plate xxx, figs. 5 and 5a, would 

 also be a Myophoria, but it may be a Keferateinia, and not very improba- 

 bly even an immature example of K. sithovat<i. 



(S.) Mecynodon. (Sp.) 



(Cfr. M. Eifeliensis, Freeh.) 



^frryvodon eifelii'iisi", Freeh. 1889. Zeitsehr. der Deutsch, geolog. (Jesellsch. , vol. 

 XLI, p. 130, pi. xi, figs. 7 and 7a. 



Dawson Bay, Lake Winnipegosis, at the mouth of the Red Deer River, 

 J. B. Tyrrell, 1889 : a cast of the interior of the left valve of a species of 

 Jfecynodon, which, although too imperfect to be determined specifically, 

 is believed by Dr. Freeh, who has seen the specimen, to be at least closely 

 related to his J/, eifeliensis. 



AXODONTOPSIS AFFINIS. (N. Sp.) 



Plate 40, figure 6. 



Shell small, rather narrowly subelliptical, about one-third longer than 

 high and very inequilateral. Valves compressed convex : posterior area 

 gently inflected and indistinctly defined, as the faint angulation on the 

 posterior side of the umbones becomes obsolete and disappears about half 



*Beitr. zu Einer Morphol. Eintheil. der Bivalven. Denkschr. der Math.-Nati 

 Schaftl. el. der Kaiserl. Ak. der Wissenschaft. Wien, 1891. Vol. LVIII, p. 88. 

 + Zeitsehr. der Deutsch. geol. Gesellsch., 18.91, vol. Ill, p. 252. 

 : lb., 1889, vol. XLI, p.p. 127-138. 

 September, 1892. 



3urwiss. 



