S<^^.o& 



MONOGRAPH 



OP 



yiTRINELLA, 



A NEW GENUS 01" NEW SPECIES OE TURBINIDiE, 



By C. B. ADAMS, A. M. 



tELLOW or THE AMERICAN ACADEMY OP ARTS AND SCIENCES, CORRESP. 



MEMB. OF THE NAT. HIST. SOC. OF NURMBERG, OF THE ACAD. NAT. 



6C. OF PHILADELPHIA, OF THE EOST. SOC. Nil. HIST, OP THE 



LYCECM OF NAT. HIST. IN NEW TOEK CITY, OP TUB 



ENTOM. SOC. OP PENNSYLVANIA, HON. MEMB. OP 



THE JAMAICA SOCIETY, &C. &C. &C. 



AMHERST, MASSACHUSETTS : 

 FEBRUARY, 1850. 



