Characterization of protease-releasing factors isolated from hemocytes of the solitary ascidian, Halocynthia roretzi K. Azumi and H. Yokosawa 391
Comparison of accumulative inactivation between the Aplysia K+ channel (AKv1.1a) and its amino-terminal deletion mutant Y. Furukawa and T. Takahashi 397
Preparation and localization of a monoclonal antibody against a vanadium-associated protein extracted from the blood cells of the vanadium-rich ascidian, Ascidia sydneiensis samea J. Wuchiyama, Y. Nose, T. Uyama and H. Michibata 409
Genetics
First description of two genetic loci inLeuciscus cephalus (Cyprindae) from Italy S. Manaresi and B. Mantovani 415
Biochemistry
Purification and characterization of trehalase from Artemia embryos and larvae Z. Nambu, F. Nambu and S. Tanaka 419
D-Lactate is present in much larger amount than L-lactate in cephalopods and gastropods S. Ohmori, Y. Ohsaki, S. Akagi, C. Kondoh, M. Kawase and T. Nagai 429
Developmental Biology
Relationship between the number of annuli of adult antenna and the length of embryonic and larval period in Samia cynthia ricini K. Yasuda and S. Takahashi 435
Ice goby (shirouo), leucopsarion petersii, may be a useful material for studying teleostean embryogenesis T. Nakatsuji, T. Kitano, N. Akiyama and N. Nakatsuji 443
Comparative analysis of fibrillar and basement membrane collagen expression in embryos of the sea urchin, Strongylocentrotus purpuratus H.R. Suzuki, R.S. Reiter, M. D'Alessio, M. Di Liberto, F. Ramirez, J.-Y. Exposito, R. Gambio and M. Solursh 449
Glycoconjugate profiles of insect spermatogenesis: Lectin cytochemical analysis of the cricket, Gryllus bimaculatus A.C. Suzuki and K. Nishimura 455
Two types of Na+/K+-ATPase subunit gene transcript in embryos of the sea urchin, Hemicentrotus pulcherrimus K. Yamazaki, C. Okamura, T. Ihara and I. Yasumasu 469
Morphology
Neuromast formation in the prehatching embryos of the cod fish, Gadus macrocephalus Tilesius M. Otsuka and S. Nagai 475
Endocrinology
The localization of vasoactive intestinal peptide (VIP)-like immunoreactivity in gonadotropes of the rat anterior pituitary H. Haraguchi and Y.G. Watanabe 483
Supportive role of cellular bridge of neurons expressing a highly polysialylated form of NCAM (NCAM-H) at the initial stage of migration of LHRH neurons M. Miyakawa, T. Seki and Y. Arai 489
Reproductive Biology
Male reproductive cycle of the toad Bufo melanostictus in Taiwan W.-S. Huang, J.-Y. Lin and J.Y.-L Yu 497
Ecology
Territorial conflicts in males of the dragonfly, Orthetrum japonicum japonicum (Odonata: Libellulidae): The role of body size E. Kasuya, K. Edanami and I. Ohno 505
Environmental Biology
Embryonic thermosensitivity of the ascidian, Ciona savignyi T.A. Nomaguchi, C. Nishijima, S. Minowa, M. Hashimoto, C. Haraguchi, S. Amemiya and H. Fujisawa 511
Animal Diversity and Evolution Geographic variation and diversity in the mitochondrial DNA of the medaka, Oryzias latipes, as determined by restriction endonuclease analysis M. Matsuda, H. Yonekawa, S. Hamaguchi and M. Sakaizumi 517
Phylogeny of Eurasian soricine shrews (Insectivora, Mammalia) inferred from the mitochondrial cytochrome b gene sequences S. Ohdachi, R. Masuda, H. Abe, J. Adachi, N.E. Dokuchaev, V. Haukisalmi and M.C. Yoshida 527
