Interactions between the genetic programme and environmental influences in the perinatal critical period Csaba, G. 813
Neuroendocrinology of osmoregulation in crabs Kamemoto, F.I. 827
Physiology
Voltage-gated membrane current of isolated bullfrog taste cells Miyamoto, T., Y. Okada and T. Sato 835
Practical nonlinear analysis using pseudo-random impulse train inputs: A case study of the crayfish brain responses Watanabe, Y. 847
Biochemistry
The retinal and 3-dehydro-retinal in Xenopus laevis eggs are bound to lipovitellin 1 by a Schiff base linkage Irie, T., M. Azuma and T. Seki 855
Involvement of a serine protease in the activation of prophenoloxidase in Drosophila melanogaster (Communication) Yonemura, M., Kasatani, N. Asada and E. Ohnishi 865
Developmental Biology
The sporadic change of epiblast cells to epithelial in the chick embryo before the formation of Hensen's knot Takeuchi, S. 869
Reproductive Biology
Fat body involvement in the plasma vitellogenin changes during recovery phase in Rana esculenta Carnevali, O. and G. Mosconi 879
Endocrinology
Immunoreactive and bioactive atrial natriuretic peptide in the carp heart Uemura, H., M. Naruse, Y. Takei, S. Nakamura, T. Hirohama, K. Ando and T. Aoto 885
A morphometric study on pituitary pars intermedia cells of male mice fed a liquid diet supplemented with urea (Communication) Okada, M., S. Takeuchi and Y. Kobayashi 899
Distribution of methionine-enkephalin-like and FMRFamide-like immunoreactivities in the central nervous system (including dorsal bodies) of the snail Helix aspersa Müller Marchand, C.R., B. Griffond, K. Mounzih and C. Colard 905
The effect of cagemates on aggression in male mice (Communication) Hayashi, S. 915
Accumulation of ovarian ecdysteroids in synchronization with gonadal development in the giant freshwater prawn, Macrobrachium rosenbergii Wilder, M.N., T. Okumura and K. Aida 919
Thyrotropicno activity of various adenhypophyseal hormones of the bullfrog Sakai, M., Y. Hanaoka, S. Tanaka, H. Hayashi and S. Kikuyama 929
Effects of thyrotropin-releasing hormone analogues and metabolites on prolactin release from the bullfrog hypophysis (Communication) Sakai, M., D. Uchida, T. Yanagisawa and S. Kikuyama 935
Immunology
Classification and characterization of ten hemocytes types in the tunicate Halocynthia roretzi Sawada, T., Y. Fujikura, S. Tomonaga and T. Fukumoto 939
Morphology
Tunic cell morphology and classification in botryllid ascidians Hirose, E., Y. Saito and H. Watanabe 951
Genetics
Chromosomal characterization of Chironomus striatipennis Kieffer (Diptera: Chironomidae) Gupta, J.P. and A. Kumar 959
Intraspecific karyotype variation in Hynobius kimurae Dunn (Urodela, Hynobiidae) by analysis of C-banding Ikebe, C. and S. Kohno 967
A chromosomal study on the genus Chymomyza (Diptera: Drosophilidae) from northern Japan (Communication) Watabe, H. and F. Shimba 973
Linkage analysis of the X-linked green tail and blue tail color genes in the guppy, Poecilia reticulata Phang, V.P.E. and A.A. Fernando 975
Behavior Biology
Thermoregulation and habitat preference in two wing color forms of Mnais damselflies (Odonata: Calopterygidae) Watanabe, M. 983
Taxonomy
Hynobius tenuis (Caudata, Hynobiidae), a new species of salamander from central Japan Nambu, H. 991
