1614 



Savage, N. 



1976. 



Burrowing activity in Mevaenavia mevaenavia (L.) and Spisula solidissima 

 (Dillwyn) as a function of temperature and dissolved oxygen. Mar. 

 Behav. Physiol. 3(4): 221-234. 



Burrowing activity was utilized as a measure of ability of Mevaenavia 

 mevaenavia and Spisula solidissima to cope with extremes of temperature 

 and dissolved oxygen. A zone of optimum activity was seen, above and below 

 which burrowing declined with changing temp. Optimum for Mevaenavia 

 mevaenavia was 21°-31°C. Optimum for Spisula was 16°-26°C. Ability of 

 Mevaenavia to burrow, when exposed to oxygen impoverished conditions (less 

 than 1 mg O2/I of seawater) for up to 3 wks, was not severely or permanently 

 impaired. Spisula was much less tolerant of low oxygen. - J.L.M. 



1615 



Sawyer, David B. 



1950. 



II. Feeding activities of the boring snail, Polynices duplicata. Third 

 Rept. on Investig. of Methods of Improving the Shellfish Resources of Mass.: 

 16-17. 



This paper deals only with soft clams. At 70°F ten snails destroyed 202 of 



300 clams available in 30 days, or 0.67 clams per day. At 50°F the rate of 



consumption dropped to one-fifth. One pound of snails had to consume 20 to 

 25 lbs of clams or other food. - J.L.M. 



1616 



Scarpelli, Dante G.,and Aaron Rosenfield (eds.) 



1976. 



Molluscan pathology. Mar. Fish. Rev. 38(10): 1-50. 



This preface, and the brief papers that follow it are the proceedings of a 

 workshop held 3-5 Sept. 1975 at Wye Institute, Md. Papers that contain 

 specific information on Mevaenavia mevaenavia are abstracted elsewhere in 

 this bibliography. It was concluded, among other things, that lesions 

 resembling neoplasms occur in bivalves in nature, but that their identity 

 has not always been interpreted correctly. Careful laboratory experimentation 

 is needed. - J.L.M. 



1617 



Schapiro, Harriette C. 



James F. Steenbergen, and Zoe A. Fitzgerald. 1977. 



Hemocytes and phagocytosis in the American lobster, Homavus ameviaanus . 



In Comparative Pathobiology . Vol. 3. Invertebrate Immune Responses. 



Lee A. Bulla, Jr. and Thomas C. Cheng (eds.) . Plenum Press, New York: 127-133. 



Using suspensions of hemocytes in hemolymph from the clam Mevaenavia mevaenavia 

 Foley and Cheng (1975) found that all hemocyte types interact with bacteria. 

 They concluded that one cell type, the granulocyte, was of greater importance 

 in phagocytosis. Bacteria were found adhering to hemocyte surfaces and in 

 phagosomes. In vitvo phagocytosis of bacteria by hemocytes of Mevaenavia 

 mevaenavia was accompanied by "degranulation" of hemocytes, with concomitant 

 release of lysozyme (Cheng et al. 1975).- J.L.M. 



1618 



Schecter, V. 



1941. 



Experimental studies on the eggs of the clam, Maatva solidissima. J. 

 Zool. 86: 461-480. 



Exp. 



Listed in Brown (1950) in bibliography for Venus mevaenavia with reference to 

 chapter by Pierce, abstracted elsewhere in this bibliography. - J.L.M. 



448 



