in the European Arctic Region. 



345 



since the rock is exposed at the shore. The preliminary 

 study shows, however, that there are only a few species 

 represented. Exceedingly common is an orthoid that 

 may be nearly related to BiUingsella coloradoensis 

 (Shumard). Very rarely represented is another species 

 of orthoid, a reversed type, the general form of which is 

 rather like that of the reverse shell mentioned from the 

 southern locality. The surface characters of the former, 

 however, are different, showing rather prominent, well 

 rounded striae, of fairly equal strength, set relatively far 

 apart, and crossed by strongly marked and beautiful con- 



FlG. 1. 



Fig. 1. — Huenella cf. texana Walcott, X 3= From Nova Zembla. 



Above: exterior of a ventral valve. 



Below: natural casts of interior of a dorsal and a ventral valve. 



centric lines of growth. It suggests a Hebertella. Of 

 inarticulate brachiopods, there are fragments of an 

 Obolus belonging to the subgenus Westonia, showing the 

 characteristic transverse parallel lines of ornamentation. 

 Of trilobites, one species is common, which for the present 

 I will refer to Ano mo car ell a, since the characters of both 

 cephalon and pygidium correspond with types that Wal- 

 cott describes in his paper on the Cambrian faunas of 



