IO 



Bulletin 36 



356 



ing groove may or may not extend on the anterior side of the 

 ridge ; valve convex. 



Anapteris regalis H. & V. W. PI. 1. Figs. 2, 3. 



Type : A. regalis H. & V. W., /. c. p. 7, pi. 1, figs.i> 2, 3. 



This new and peculiar corbuloid form was described from 

 the left valve only. Finding in our later work on Newcastle, 

 Va. material, two specimens of the right valve, we include the 

 figure of one with those of new forms described in this article. 



From material collected on 1st Iauthiyia Expedition in '97. 



