Behavior of exogenously-introduced DNAs in early embryos of Xenopus laevis Asano, M., K. Shiokawa 197
Comparative aspects of intestinal calcium transport in fish and amphibians Robertson, D.R. 223
Physiology
Physiological evaluation of the role of the liver as a mediator of the growthpromoting action of somatotrophin Schlechter, N.L., L.S. Katz, S.M. Russell, C.S. Nicoll 235
Isolation and some characterization of vitellogenin and its related egg yolk proteins from Coho Salmon (Oncorhynchus kisutch) Hara, A., C.V. Sullivan, W.W. Dickhoff 245
Structure and function of the molluscan myoactive tetradecapeptides Harada, A., M. Yoshida, H. Minakata, K. Nomoto, Y. Muneoka, M. Kobayashi 257
Effects of proteolytic digestion on the control mechanism of ciliary orientation in ciliated sheets from Paramecium Noguchi, M., K. Okamoto, S. Nakamura 267
The nucleotide content of the octopus photoreceptor cells: No changes in the octopus retina immediately following an intense light flash Seidou, M., K. Ohtsu, Z. Yamashita, K. Narita, Y. Kito 275
Effect of osmolality on the motility of sperm from the lamprey, Lampetra japonica Kobayashi, W. 281
Biochemistry
Immunocytochemical localization of Caenorhabditis elegans (Rapid Communication) Nakae, H., T. Obinata 375
Identification and immunological properties of an olfactory system-specific protein in Kokanee Salmon (Oncorhynchus nerka) Shimizu, M., H. Kudo, H. Ueda, A. Hara, K. Shimazaki, K. Yamauchi 287
Developmental Biology
Development of the brittle star, Ophioplocus japonicus H. L. Clark. I Komatsu, M., T. Shōsaku 295
Reproductive Biology
Maitotoxin induces acrosome reaction and histone degradation of starfish Asterina pectinifera sperm Amano, T., Y. Okita, T. Yasumoto, M. Hoshi 307
Reproduction by overwintering adults of water strider, Aquarius paludum (Fabricius) Harada, T. 313
Biosynthesis of 17,20-dihydroxy-4-pregnen-3-one from 17-hydroxyprogesterone by goldfish (Carassius auratus) spermatozoa (Rapid Communication) Asahina, K., K. Aida, T. Higashi 381
Endocrinology
Prostaglandins and sex steroids from reptilian (Podarcis sicula sicula) ovarian follicles at different developmental stages Gobbetti, A., M. Zerani, M.M. Di Fiore, V. Botte 321
Plasma steroid hormone profiles in HCG-injected male walking catfish Clarias batrachus Zairin, M.Jr., K. Asahina, K. Furukawa, K. Aida 329
Annual patterns of testicular development and activity in the chinese bullfrog (Rana rugulosa Wiegmann) Kao, Y.H., P.S. Alexander, V.V.C. Yang, J.Y.L. Yu 337
Prolactin binding sites in normal uterus and the uterus with adenomyosis in mice Singtripop, T., T. Mori, M.K. Park, K. Shiraishi, T. Harigaya, S. Kawashima 353
Environmental Biology and Ecology
Juvenile hormone analogue, S-31183, causes a high level induction of presoldier differentiation in the Japanese dampwood termite Ogino, K., Y. Hirono, T. Matsumoto, H. Ishikawa 361
Systematics and Taxonomy
A new species of the genus Pasiphaea (Crustacea, Decapoda, Pasiphaeidae) from the North Pacific Komai, T., K. Amaoka 367