PAGE 



Alokistocare Lorenz, genus described 182 



compared with Acrocephalites 176, 183 



Macrotoxus ; . 183 



formerly would have been included with Ptychoparia 177 



genotype, Conocephalites subcoronatus Hall and Whitfield. . . 183 



geographic distribution 183 



observations 183 



segments 183 



species compared 182 



stratigraphic range 183 



synonymy 182 



althea, new species, described 184 



figured pi. 25, figs. 3, 3a, 4, 4a 232 



compared with- Alokistocare subcoronatum (Hall and Whit- 

 field) 187 



Ptychoparia striata and Acrocephalites americanus 183 



formation and locaHty 184 



segments '. 183 



? labrosum, new species, described 184 



figured, pi. 25, figs. 5, 5a 232 



compared with Acrocephalites 176, 185 



• Alokistocare and Menomonia ■ 185 



Alokistocare prospectense and A. linnarssoni 182 



Alokistocare subcoronatum 184 



formation and locality 185 



intermediate between Conocephalites, Alokistocare, and Meno- 

 monia 184-185 



linnarssoni ( Walcott) , described 185 



figured pi. 25, figs. 7, 7a 232 



compared with Alokistocare labrosum and A. ? prospectense. . 182 



Alokistocare ? prospectense 185, 187 



Alokistocare subcoronatum 184 



formation and locality 185 



synonymy 185 



pomona, new species, described 186 



figured pi. 25, fig. 6 232 



compared with Alokistocare ticida 188 



Ptychoparia striata and Acrocephalites americanus . .. . 183 



formation and locality 186 



observations 186 



segments 183 



? prospectense (Walcott) , described 186 



figured pi. 25, fig. 8 232 



compared with Alokistocare labrosum and A. linnarssoni. ... 1R2 



Alokistocare linnarssoni 185, 187 



Alokistocare subcoronatum 184 



formation and locality 187 



synonymy 



186 



