NO. l6 NEW MARINE MOLLUSKS COREA 9 



notch. The inner hp is reflected over the columella as a heavy callus 

 which extends over the parietal wall and forms a small knob at its 

 junction with the outer lip. 



Type. — U.S.N.M. no. 429337, collected at station 56 in 17 fathoms 

 in Samana Bay, between latitude i9°io'i5" N., longitude 6g°2y'2o" 

 W. and latitude 19° 10' 15" N., longitude 69°28'o5" W. It has 10.8 

 whorls and measures : Length, 15 mm ; greater diameter, 5.5 mm. 



U.S.N.M. no. 430160a is a specimen from station 16 dredged in 

 38-95 fathoms. 



