88 M. R. CARRIKER, D. B. SCOTT, AND G. N. MARTIN, JR' 



oyster drills, Urosalpinx cinerea (Say). /. Elisha Mitchell Sci. Sac, 



73, 328-351. 

 Carriker, M. R. 1959. Comparative functional morphology of the drilling 



mechanism in Urosalpinx and Eupleiira (muricid gastropods). Proc. 



15th Intern. Congr. Zool, London, pp. 373-376. 

 Carriker, M. R. 1961. Comparative functional morphology of boring mech- 

 anisms in gastropods. Am. Zoologist, 1, 263-266. 

 Carriker, M. R., and Boone, S. M. 1960. Photograph of bore hole. Science, 



i32( 3424), frontispiece. 

 Dugal, L. P. 1939. The use of calcareous shell to buffer the product of 



anaerobic glycolysis in Venus mercenaria. J. Cellular and Comp. 



Physiol, 13, 235-251. 

 Fischer, P. H. 1922. Sur les gasteropodes perceurs. J. conchijlol., 67, 1-56. 

 Fretter, V. 1941. The genital ducts of some British stenoglossan proso- 



branchs. /. Marine Biol. Assoc. U. K., 25, 173-211. 

 Fretter, V. 1946. The pedal sucker and anal gland of some British Steno- 



glossa. Proc. Malacol. Soc. London, 27, 126-130. 

 Fretter, V., and Graham, A. 1962. British Prosohranch Molluscs. Their 



Functional Anatomy and Ecology. The Ray Society, London, No. 144, 



for the years 1959-1961. 

 Galtsoff, P. S. 1955. Recent advances in the studies of the structure and 



formation of the shell Crassostrea virginica. Proc. Natl. Shellfish erics 



A.ssoc, 45, 116-135. 

 Giglioli, M. E. C. 1952. Further observations of the biology of whelks of 



the Family Naticidae including Polinices. Fisheries Research Board 



Canada, MS. Kept. Atlantic Biol. Sta., No. 447. 

 Graham, A. 1941. The oesophagus of the stenoglossan prosobranchs. Proc. 



Roy. Soc. Edinburgh, B, 61, 1-23. 

 Gregoire, C. 1957. Topography of the organic components in mother-of- 

 pearl. /. Biophys. and Biochem. Cytol., 3, 797-808. 

 Gunter, G. 1936. Radular movement in gastropods. /. Wash. Acad. Sci., 



26, 361-365. 

 Hirsch, G. C. 1915. Die Ernahrungsbiologie fleischfressender Gastropoden. 



Zool. Jahrb., Abt. allgem. Zool, 35, 357-504. 

 Jensen, A. S. 1951. Do the Naticidae drill by mechanical or by chemical 



means? Nature, 167, 901-902. 

 Schiemenz, P. 1891. Wie bohrt Natica die Muscheln an? Mitt. zool. Sta. 



Neapel, 10, 153-169. 

 Scott, D. B., Nylen, M. U., and Pugh, M. H. 1962. Some technical aspects 



of microradiography. Norelco Reptr., 9, 103-109. 

 Scott, D. B., and Wyckoff, R. W. G. 1946. Shadowed replicas of tooth sur- 

 faces. Public Health Rept., 61, 697-700. 

 Scott, D. B., and Wyckoff, R. W. G. 1956. Carbon surface replicas for 



