which may protrude a considerable distance from the larval shell. No sexual 

 or resting stage was seen. Identity of the fungus was not determined spe- 

 cifically, but their simple organization, conclusive cellulose reaction to 

 chloroiodide of zinc, and biflagellate zoospores suggested that it is a 

 phycomycete. The genus Lagenidium was suggested by some characteristics, 

 Sirolpidium by others, but Sirolpidium has never been found in an animal 

 host. One or two new species may be involved. It is possible that the 

 fungus affects the sequence of events in the food chain. - J.L.M. and W.J.B. 



456 



Davis, John D. 1966. 



Mesodesma aretatum: Fossil and living specimens on Nantucket. Nautilus 80 

 (1) : 1-3. 



457 



Davis, John D. 1969. 



Polydora infestation of Mereenaria mereenaria. Nautilus 83(2): 74. 



Quahogs from Nantucket Harbor, Mass., of which the posterior third had been 

 exposed above the substratum, were infested with Polydora . Exposed parts 

 of the shell had been damaged extensively with an extensive network of 

 tubular excavations characteristic of Polydora. No remains of the worm 

 were found. In one clam perforations had penetrated within the posterior 

 adductor muscle scar, although no extensive damage had been done. - J.L.M. 



458 



Dean, David. 1975. 



Raritan Bay macrobenthos survey, 1957-1960. U.S. Dept. Commerce, NOAA, 

 NMFS Data Rept . 99, iii + 51 p. 



Shells or living individuals of Mereenaria mereenaria were taken in 94 of 

 19 2 samples reported. The species was among the 30 most prevalent species 

 of about 138 species taken. - J.L.M. 



459 



Dean, David, and Harold H. Haskin. 1964. 



Benthic repopulation of the Raritan River estuary following pollution 

 abatement. Limnol . Oceanogr . 9: 551-56 3. 



460 



DeBlois, N. F., and A. F. Eble. 1974. 



Biology and ecology of hard clam relaying Cape May County, New Jersey. 

 Bull. N.J. Acad. Sci. 19(1): 26-27. 



Contaminated clams (Mereenaria mereenaria) were taken from Cape May Harbor 

 and planted in Great Egg Harbor and in Great Sound, N.J. Clams were sampled 

 5, 15, and 30 days after transplanting and analyzed for total bacteria, 

 total and fecal coliforms, and fecal streptococci. Glycogen was determined 

 in adductor muscles, mantle, and digestive gland. Bacterial content of 

 waters from the Great Sound and Great Egg Harbor sites varied from 5,400 to 

 13 MPN. Clams did not depurate well under these conditions. In July- 

 August 1973 in Great Egg Harbor, even after 30 days, clams had 330 MPN 

 (acceptable level 70 MPN or less) . Glycogen content did not change 

 significantly. In Great Egg Harbor clams appeared to deposit more glycogen 

 than those from Great Sound. Phytoplankton content was about the same in 

 both places. - J.L.M. 



128 



