Giglioli, M. E. C. <br/><br/>
The Egg Masses of the Naticidae (Gastropoda) 

 - pp. 287-327 
<br/><br/> Giglioli, M. E. C. (1954). "The Egg Masses of the Naticidae (Gastropoda)". Journal of the Fisheries Board of Canada. Vol. 12, no. 2.