Page 



Grobben, C, excretion of dyes 274 



ground substance, connective tissue 79 



growth, changes in axes 27 



of shell 26 



inversion 29 



radii 26 



rings 26 



Gruntzner's model of catch mechanism 165 



Gryphaea angulata 2 



Gryphaea arcuata 2 



Gryphaea, ruling of International Commission 3 



Gryphaea vs. Crassostrea 3 



Gudger, E. W., attacks of starfish 438 



Gunter G 3,6 



sedimentation 412 



Gutheil, F., crystalline style 225 



gastric shield formation 222 



gutters, between labial palps 111 



Gymnodinium breve, cause of mortality 409 



Haas, F 48 



excretory system 273 



pallial organ 291 



habitat 5 



Hagmeier, A., oyster bottoms 398 



Hagstrom, B. E., jelly coat removal from egg 340 



Hall, C. E., paramyosin in oyster 164 



Hamburger, V., embryology textbook 347 



Hammen, C. S., calcification 99 



Hanson, J., helical striation in muscle fibers 155, 157 



muscular tension 167 



Haplosporidia 417 



Haplosporidium costalc 417 



Harrison, C. W 43 



heavy metals in oysters 384 



Hartman, O., annelids on oyster shells 422, 428 



Harvey, H. W., pigment units 409 



Hatanaka, M., rearing of larvae 375 



Haven, D., effect of low saUnity 405 



Hayashi, T., hypothesis of catch mechanism 167 



Hays, J. T., inhibition in adductor of Pecien 1C6 



Hazelhoff, E. H., utilization of oxygen 214 



heart _ _ 70, 240-241 



accessory 258 



automatism 242, 244-245 



effect of adrenaline 253 



effect of curare 253 



effect of drugs 251 



effect of hydrostatic pressure 244 



fatigue 247 



ganglion cells 241 



innervation 241 



larval 361 



nerve fibers 242 



peacemaker system 245 



physiology 242 



rate of beating in larva 361 



stimulating nerves 248 



use in bioassays 252 



heart beat 242 



effect of mineral salts 251 



effect of pH 251 



466 



Page 



excised 250 



frequency 249 



i nhibition 249 



methods of study 247-248 



recorded in situ _ 247 



temperature characteristics 248 



heart preparation in bioassays 443 



heavy metals, analytical procedures 384-385 



geographical variation 354 



in oyster meat 383-384 



locahzation in different organs 390 



in New England oysters 334 



seasonal differences 390 



Hecht, S., sensory stimulation in Mya and Pholas. 293-294 



Hedgpeth, J. \V., oyster bottoms 393 



sahnity and temperature change 405 



Heider, K., sterroblastula 347 



Helix, presence of cellulasc 230 



Helix pomatia, calcification of epiphragm 95 



Hemming, F 2 



hermaphrodites 314 



hermaphroditism 318 



frequency in C virginica 314 



Hers, M. J., oxygen debt 214 



heteroagglutination of oyster sperm 340 



Hexamila 419 



Hirata, A. A., calcification 97, 103 



Hoagland, H., textbook 248 



Hoek, P. P. C., discovery of hermaphroditism in 



oysters _ 314 



food of oysters 231 



genital canals 300 



Hopkins, A. E 77 



accessory heart 258 



adductor muscle 154 



cloacal current 405 



condition index 392 



current indicator 190-193 



duration of shell opening 174 



fecundity of O lurida 313 



function of eye , 371 



pollution of Olympia oyster beds 401 



sensory stimulation 293-294 



shell movement, effect of temperature 175 



tentacles 79 



Hopkins, H. S 153 



oxygen consumption by tissues 200 



Hopkins, J. C., water filtration by scallop 194-195 



Hopkins, S. H., glycogen in Louisiana oysters 386 



oyster crab 425 



Polydora larvae 423 



Horst, R., larval development, O edulis 355 



Hotchkiss, M., decomposition of sediments 413 



Hotelliiig's formula, concentration of pollutant in 



estuary 401 



Houet, R., excreta 276 



Hubendick, B., adhesive epithelium 160 



Humphrey, G. F., inorganic salts in adductor 



muscle 162 



chemical changes in oyster adductor 168 



Hunter, A. C 43 



heavy metals in oysters 384 



FISH AND WILDLIFE SERVICE 



