1723 



Stasek, C. R. 1963. 



Geometrical form and gnomonic growth in the bivalved Mollusca. J. Morphol. 

 112(3): 215-231. 



Mentions a paper by Clench (1948) in Review of the Society of Malacology 

 which described an aberrant specimen of Venus campechiensis which had a 

 protuberant right valve. - J.L.M. 



1724 



Stauber, Leslie A. 1961. 



Immunity in invertebrates, with special reference to the oyster. Proc. 

 Natl. Shellf. Assn. 50: 7-20. 



Mercenaries (Venus) mercenaries is not discussed, but the processes and 

 principles described are generally applicable. - J.L.M. 



1725 



Stauffer, Robert C. 1937. 



Changes in the invertebrate community of a lagoon after disappearance of 

 the eel grass. Ecology 18(3): 427-431. 



Venus mercenaria was considered common before and after eel grass disappeared. 

 The species was present in 33 to 50% of collections reported by Allee (1923) 

 and formed 2 to 5% of the total population in 1936. - J.L.M. 



1726 



Steimle, Frank W. , Jr., and Richard B. Stone. 1973. 



Abundance and distribution of inshore benthic fauna off southwestern Long 

 Island, N.Y. U.S. Dept. Commerce, NOAA Tech. Rept. NMFS SSRF-673, iii+50 p. 



Mercenaria mercenaria is listed in Appendix Table 3, species collected on 

 survey, but the detailed subsequent tables containing benthic grab collection 

 records contain no record of hard clam. - J.L.M. 



1727 



Stephens, Grover C. 1967. 



Dissolved organic material as a nutritional source for marine and estuarine 

 invertebrates. In Estuaries. G. H. Lauff (edj . Am. Assn. Adv. Sci., 

 Washington, D.C., Pub. 83: 367-373. 



Carbohydrates other than glucose are not available to Mercenaria mercenaria 

 from solution. - J.L.M. 



1728 



Stephens, Grover C.,and Robert A. Schinske. 1961. 



Uptake of amino acids by marine invertebrates. Limnol. Oceanogr. 6(2): 175-181. 



Removal of amino acids from solution by 35 genera in 11 phyla was studied by 

 following the concentration of an acid added to the ambient seawater. 

 Beginning with a concentration of 2.0 mM glycine, Mercenaria mercenaria 

 removed 20% of the amino acid in 17 hrs . Bacterial utilization, and 

 adsorption on the walls of the containers or on surfaces of animals were 

 ruled out as improbable on the basis of control experiments. Adsorption on 

 inorganic particles in the water was possible, but not considered likely. 

 The possible nutritive significance of amino acid uptake was considered 

 speculative. - J.L.M. 



477 



