1165 



Lowenstam, Heinz A. 1954. 



Factors affecting the aragonite :calcite ratios in carbonate-secreting 

 marine organisms. J. Geol. 62(3): 284-322. 



Meroenaria (Venus) meroenaria is not mentioned. - M.W.S. 



1166 



Lowey, Susan, Joseph Kucera, and Alfred Holtzer. 1963. 



On the structure of the paramyosin molecule. J. Mol. Biol. 7(3): 234-244. 



Light-scattering, viscosity and sedimentation experiments on solutions of 

 Venus meroenaria paramyosin from adductor muscle showed that the paramyosin 

 molecule is a rod, 1330 A long and 20 A in diameter, of 220,000 atomic mass 

 units. The hypothesis that the molecule is made up of 2 adjacent a-helical 

 chains is consistent with the diameter and mass per unit length found in 

 this study, and with other available data. (Abstracter's note: The 4 

 literature citations (without titles) probably include some papers which 

 mention Meroenaria meroenaria. Some are abstracted elsewhere in this 

 bibliography, but we did not attempt to find and read others.) - modified 

 authors' abstract - J.L.M. 



1167 



Lowman, F. G., T. R. Rice, and F. A. Richards. 1971. 



Accumulation and redistribution of radionuclides by marine organisms. In 

 Radioactivity in the Marine Environment. Natl. Acad. Sci . , Washington, 

 D.C.: 161-199. 



This comprehensive review paper discusses a variety of marine organisms from 

 plankton to fishes, but does not refer specifically to Meroenaria meroenaria. 

 It is concluded that in estuarine and nearshore marine environments bottom 

 sediments are close to sites of photosynthesis and to sites of fallout and 

 terrestrial additions of radionuclides. In such regions, bottom sediments 

 and their associated epiphyton often influence significantly the distribution 

 of added radionuclides. Where large populations of sessile filter feeders 

 exist they may exert profound effects upon rates of sedimentation of added 

 trace elements and radionuclides. - J.L.M. 



1168 



Lowry, Oliver H., Nira J. Rosebrough, A. Lewis Farr, and Rose J. Randall. 19 51. 



Protein measurement with the Folin phenol reagent. J. Biol. Chem. 193(1): 

 265-275. 



Meroenaria (Venus) meroenaria is not mentioned. - M.W.S. 



1169 



Loy, G., and A. F. Eble. 1974. 



Locomotion and phagocytic behavior of the amebocytes of the hard clam, 

 Meroenaria meroenaria, as revealed by time-lapse cinemicrography. Bull. 

 N.J. Acad. Sci. 19(1): 27 (abstract). 



Large and small granulocytes are the 2 principal types of hard clam amebocyte. 

 Small granulocytes were active and usually flowed unidirectionally . Movement 

 was by rapid extensions of ectoplasm. Granules of endoplasm flowed rapidly in 

 the same direction. Endoplasmic granules were active even when cell 

 locomotion ceased. Mitochondria especially were highly plastic and usually 

 took the form of large blunt granules, but would stretch into elongated 

 structures temporarily. Cells adhered firmly to the cover slip, mostly in 

 their "posterior" region, then suddenly released contact to "catch up" with 

 the main portion of the cell. Large granulocytes adhered to the cover slip 

 as large flat cells. No motion was detected by direct viewing, but time-lapse 

 studies showed an extremely active waving motion of the ectoplasmic border of 



327 



