Distribution and function of gonadotropin-releasing hormone (GnRH) in the teleost brain M. Amano, A. Urano and K. Aida 1
Physiology
Response of the telencephalic neurons of the budgerigar Melopsittacus undulatus to species-specific warble song elements H. Eda-Fujiwara, M. Kinoshita and H. Okumura 13
Sensitive stages in the photoperiodic determination of wing forms and reproduction in the water strider, Aquarius paludum (Fabricius) T. Inoue and T. Harada 21
Effect of formoguanamine on structure and function of the compound eye of the butterfly, Papilio xuthus Y. Miyako-Shimazaki, Y. Shimazaki and E. Eguchi 29
Identification of a vanadium-associated protein from the vanadium-rich ascidian, Ascidia sydneiensis samea T. Kanda, Y. Nose, J. Wuchiyama, T. Uyama, Y. Moriyama and H. Michibata 37
Finding of the same antigens in the polychaete, Pseudopotamilla occelata, as those in the vanadium-rich ascidian, Ascidia sydneiensis samea T. Uyama, Y. Nose, J. Wuchiyama, Y. Moriyama and H. Michibata 43
Behavior Biology
Relationships between environmental factors and diel and annual changes of the behaviors during low tides in Periophthalmus modestus Y. Ikebe and T. Oishi 49
Genetics
Delayed response of QM- and DA/DAPI-fluorescence in C-heterochromatin of the small Japanese field mouse, Apodemus argenteus Y. Obara, S. Sasaki and Y. Igarashi 57
Molecular Biology and Biochemistry
Isolation of a cDNA encoding a chitinase family protein from cuticular tissues of the Kuruma prawn, Penaeus japonicus T. Watanabe and M. Kono 65
Cloning and sequencing of gene coding for a periplasmic 5.4 kDa peptide of the macronucleus-specific symbiont Holospora obtusa of the ciliateParamecium caudatum H. Dohra, K. Yamamoto, M. Fujishima and H. Ishikawa 69
Primary structure of mouse actin-related protein 1(Arp1) and its tissue expression K. Kusano, H. Abe and T. Obinata 77
Cellulose digestion in the wood-eating higher termite, Nasutitermes takasagoensis (Shiraki): Distribution of cellulases and properties of endo-ß-1,4-glucanase G. Tokuda, H. Watanabe, T. Matsumoto and H. Noda 83
Developmental Biology
Cell-cell contact down-regulates expression of membrane type metalloproteinase-1 (MT1-MMP) in a mouse mammary gland epithelial cell line S.S. Tanaka, Y. Mariko, H. Mori, J. Ishijima, S. Tachi, H. Sato, M. Seiki, K. Yamanouchi, H. Tojo and C. Tachi 95
The mode of action on the vitelline envelope of Xenopus hatching enzyme as studied by its two molecular forms T. Fan and C.H. Katagiri 101
Changes in the distributions of chemical elements in regenerating scales of carp, Cyprinus carpio, studies by SRXRF imaging T. Yoshitomi, A. Iida, C. Nakayasu, N. Okamoto and Y. Ikeda 105
Stability of chicken troponin T expression in cultured muscle cells J. Mashima, K. Nakada, J.-I. Miyazaki and T. Hirabayashi 109
Correlation between Distal-less expression patterns and structures of appendages in development of the two-spotted cricket, Gryllus bimaculatus N. Niwa, M. Saitoh, H. Ohuchi, H. Yoshioka and S. Noji 115
Endocrinology
Stage-dependent changes of the prothoracicotropic hormone (PTTH) activity of brain extracts and of the PTTH sensitivity of the prothoracic glands in the cabbage armyworm, Mamestra brassicae, before and during winter and aestival pupal diapause K. Endo, Y. Fujimoto, M. Kondo, A. Yamanaka, M. Watanabe, K. Weihua and K. Kumagai 127
Prostaglandins do not release egg-laying behaviour in the silkmoth, Bombyx mori M. Yamauchi, H. Fugo and S.G. Dedos 135
Possible involvement of folliculo-stellate cells in the differentiation of muscle fibers during monolayer culture of pituitary cells O. Hosoya and Y.G. Watanabe 141
Enhancement of the receptor binding and Nb2 profileration activities of rat prolactin by site-directed mutagenesis Y. Kato, K. Tomizawa and T. Kato 147
Effects of estrogen and dopamine agonists on the expression of argyrophilic nucleolar organizer regions in prolactin cells of rats K. Kawamoto and K. Tamai 153
Effect of hormones on expression of prolactin receptor messenger ribonucleic acids in pancreatic islets of adult female mice in vitro M. Matsuda and T. Mori 159
Animal Diversity and Evolution
Phylogenetic position and geographic differentiation of the Japanese dormouse, Glirulus japonicus, revealed by variations among rDNA, mtDNA and the Sry gene H. Suzuki, S. Minato, S. Sakurai, K. Tsuchiya and I.M. Fokin 167
