12 Dr. P. P. Carpenter on new Forms of Mullusca. 



et dimidio, rapidissirne augentibus ; vertice vix conspicuo ; anfr. 

 ult. antice valde porrecto ; regione coluinellari incurvata ; labio 

 valido ; axi haud rimata ; epidermide teuui, rugis incrementi or- 

 nata, spiraliter haud striata. Long. "1, lo;ig. spir, '15, lat. 'SIS, 

 div. 140°. 



Hub. Neeah Bay; rare {ciwiia)^ 



246 



