sting ray 430 



Stolkowski, J., role of carbonic anhydrase 104 



stomach 71,219-221 



ciliary tracts 220 



histology 222 



lining 220-221 



parts of 219-221 



Stommel, H., organic matter in phytoplankton 40S 



Stoke's law 410 



Stotts, V. D., milfoil 430 



streamline flow 410 



striation of muscle, oblique 154 



Striostrea 6 



stroboscope, use in study of ciliary motion 137 



Strohl, J., excretory system 27 1 



excretion of dyes 279 



strontium, effect on formation of aragonite 104 



in shells 44 



strontiuni-calcite ratio in shells 44-45 



struggle for space 430 



Studnitz, G. V., pallial organ 290 



Stylochus ellipticus 438 



Stylochus inimicus, synonym S. frontalis 438 



Stylochiis frontalis 438 



subliga mental ridge 79, 89 



histology 89 



sulphates, accumulation in Mytilus 278 



Suzuki, S., ganglion cells in heart 242 



heart innervation 241 



swarming of larvae 306 



synapsis 327 



syringe pipette of Van Dam 204 



systole 243 



Szent-Gyorgyi, A., theory of muscular contraction, 164, 167 

 Szent-Gyorgyi, A. G., electron microscopy of 



muscle 1 57- 1 58 



hypothesis of catch mechanism 166 



Tabulae Biologicae 164 



Takatsuki, Shun-Ichi, blood cells granules 263 



effect of adrenaline on heart 253 



enzymes in blood cells 264 



excised heart, method 243 



heart beat 250 



heart physiology 242 



Tamura, T., power of adductor muscle 176 



Tanaka, K., chalky deposits in shell 35 



Tarzwell, C. M., pollution studies 442 



taxodont teeth 364 



Taylor, I. R., action currents in the heart 244 



Taylor, W. R., algae 426 



Tellina tenuis, ligament 56,59 



teloblasts 348 



temperature, as environmental factor 407-408 



as factor controlling feeding. 407 



as factor controlling reproduction 407 



effect on ciliary motion 138-139 



effect on rate of work of cilia 145-146 



effect on spawning 308-309 



mean monthly in Apalachiocola Bay and 



Long Island Sound 407 



temperature characteristic (m) 249 



478 



Page 



temperature coefficient 249 



of ciliary action 146 



temperature range 407 



Ten Gate, J., heart physiology 242 



Tennent, D. H., Bucephalus 419 



tensilium 49-50 



fibrillae 51, 53 



tentacles 66-67, 76 



nerves of 84-86 



position 78 



stimulation of 293 



structure of 85 



Terao, A., agglutination of sperm 340 



Teredo, cellulase in tissues 230 



cross striated muscles 154 



digestive diverticula 226 



terminal groove, of gills 129 



Tethys 1 



Texas, increase in salinity over oyster beds 406 



silting of inshore waters 412 



Thais haemasloma, distribution in relation to 



salinity 434 



fecundity 433 



trapping of 433 



Thais lamellosa 432, 434 



thiamine, in oysters 391 



Thiele, J., labial palps 113 



pallial organ 289 



taxonomy of Oslrea 4 



Thompson, d'A. W., mathematical analysis of 



growth and form of shells 22, 27 



Thorson, G., dispersal of larvae 369 



food of larvae 374 



thyroidin, as stimulant of male spawning 311 



tide, effect on shell movement 175 



time marker, for slow motion kymograph 190 



Todd, A. R., orthoquinone in arthropod's cuticle.. 58 



Tomita, G., serological differences in bivalves 266 



tonic activity 166 



myogenic vs. neurogenic 166 



tonotropic effect of potassium 251 



tonus 166 



loss of in adductor muscle under continuous 



pull 178-179 



toxicity, determination in low concentration 444 



of pollutants, reduced by oxidation 444 



transport of water by the gills 185 



automatic recording 187 



Trask, P. D., sedimentation 410 



settling 411 



Trematodes 419 



Tridacna, determination of pulling force 59 



proteolytic action in stomach 231 



trochoblasts 355 



trochophore 355 



trochophore, anatomy 356 



trochophore stage, duration of 356 



Trochus marulatus 2 



Trueman, E. R., ligament 48,49,56,58,59 



role of strontium and magnesium in shell 



formation 104 



FISH AND WILDLIFE SERVICE 



