Genera of Stephanoceras and Allies. 147 



Genus Germanites, Mascke. 



" Type, Germ, latilobus, n. f." 

 12 species, of which all are new. 



(compressed, somewhat fine-ribbed Stephanoceratoids with 

 ears. 



Genus Paekinsonia, Bayle. 



" Type, Am. parkinsoni, Sow." 



5 species, of which 4 are new. 



These are only the species from tiie Ooronatenschichten of 

 North Germany, From higher beds in England and Wurtem- 

 berg the number of species is very large. 



Genus Stkenoceras, Hyatt. 



'^Type, A7n. niortensis, d'Orb." 

 7 species, of which 2 are new. 



Genus Spiroceras, Qn. 



" Type, Ilamites hifurcatus^ Qu.*' 

 No further record. 



Genus Polyplectites, Mascke. 



" Type, Am. linguiferusy d'Orb." 

 No further record. 



Family Steminatoceratidae, Mascke. 



Genus Stemmatoceras, Mascke. 



" Type, Am. hwnphriesianus coronatus, Qu." 

 15 species, of which 13 are new. 



Genus SkirroCERAS, Mascke. 



" Type, Am. humph- iesianus macer, Qu." 

 15 species, of which 13 are new. 



Genus Telocekas, ]\[ascke. 



" Type, Am. blagdenf, Sow." 

 19 species, of which 14 are new. 



10* 



