1898-1902. No. 32.] FOSSIL FAUNAS FROM SERIES B. 41 



Lower 

 Part. 



CAJ 



Middle 

 Part. 



S.S c 



I-M ^ 



.5 > ? 



_ 



B 



Upper Part. 



Valley south 

 of Borgen. 



II 



"s 



* s 



aj K 



Camarotoechia litchfleldensis SCHUCHERT 

 var. angustata nov. var 



Uncinulus septentrionalis nov. sp. . . . 



Atrypa reticularis LINN 



Lissatrypa scheii nov. sp 



<Sp irifer modestus HALL, var. striatissimus 

 ' nov. var 4- 



Spirifer vanuxemi HALL, var. prognostica 



SCHUCHERT + 



Grammysia (?) triangulata nov. sp. 



Pterinea cf. aviculoidea HALL .... 



Nucula (?) sp 



Hormotoma sp + 



Hormotoma (?) sp 



Hormotoma (?) sp 



Loxonema fitchi HALL 4- 



Holopea sp 



Platyceras ellesmerelandi nov. sp. . . 



Orthoceras sp 



Orthoceras sp 



Proetus leptorhachis nov. sp 



Encrinurus sp 



Encrinurus (?) sp 



Frammia dissimilis nov. gen. & sp. 



Leperditia symmetrica nov. sp. . . . 



Leperditia sp 



Primitia arctica nov. sp 



-f 



-t- 



When we inspect this list of 43 species, only 21 of which are well 

 enough preserved to be given a specific name, we find 9 new species, 

 5 new varieties of species known previously, and 7 species which have 

 been identified with known ones. Of these only a very few can be used 

 for purposes of correlation. 



The Favosites forms cannot be relied upon as detailed guide fossils, 

 for with our present knowledge of these forms their specific characters 



