Energy metabolism of sea urchin spermatozoa: An approach based on echinoid phylogeny M. Mita and M. Nakamura 1
Physiology
Ionic dependence of the axotomy-induced long-lasting firing in an identified crayfish motoneuron A. Muramoto 11
Cardioacceleratory neurons of the isopod crustacean, Ligia exotica: Visualization of peripheral projection onto the heart muscle A. Sakurai and H. Yamagishi 19
Compositional changes in glycoconjugates recognized histochemically with lectins in Purkinje cells in suckling and adult rats H. Keino, T. Banno and J. Ozeki 27
Relationships of salinity tolerance to immunolocalization of Na+,K+-ATPase in the gill epithelium during seawater and freshwater adaption of the guppy, Poecilia reticulata T. Shikano and Y. Fujio 35
Biochemistry
Irreversible potent activation and reversible inhibition of trypsin-like activity of 20S proteasome purified from Xenopus oocytes by fatty acid S. Yamada, J. Yamada, K. Sato, T. Tokumoto, M. Yasutomi and K. Ishikawa 43
Cell Biology
Evidences for direct involvement of microtubules in cleavage furrow formation in newt eggs T. Sawai 51
Developmental Biology
Hoxd-4 expression during pharyngeal arch development in flounder (Paralichthys olivaceus) embryos and effects of retinoic acid on expression T. Suzuki, I. Oohara and T. Kurokawa 57
Developmental roles of nuclear complex factors released during oocyte maturation in the ascidians Halocynthia roretzi and Boltenia villosa W.R. Bates and H. Nishida 69
Mutual relation between the cell-cycle progression and prespore differentiation in Dictyostelium development T. Araki and Y. Maeda 77
The spawning and early development of the Hawaiian acorn worm (hemichordate), Ptychodera flava K. Tagawa, A. Nishino, T. Humphreys and N. Satoh 85
Multilaminar/vesicular bodies accumulating glycoconjugates in primary spermatocytes of cricket, Gryllus bimaculatus A.C. Suzuki and K. Nishimura 93
Effects of a soft diet and hypothyroidism on the oxidative capacity of the masseter muscle fibers of the young Japanese field vole Microtus montebelli K. Sugasawa and T. Mōri 97
Endocrinology
Changes in circulating LH, sex steroid hormones, thyroid hormones and corticosterone in relation to breeding and molting in captive Humboldt penguins (Spheniscus humboldti) kept in an outdoor open display R. Otsuka, K. Aoki, H. Hori and M. Wada 103
Changes in cystine aminopeptidase (oxytocinase) activity on mouse serum, placenta, uterus and liver during pregnancy or after steroid hormone treatments H. Matsumoto and T. Mori 111
Reproductive Biology
Production of the oocyte maturation-inducing substance of starfish by heat treatment of S-adenosylmethionine M. Mita, I. Yasumasu, M. Saneyoshi, M. Yoshikuni and Y. Nagahama 117
Genetics
Sex-linked inheritance of the If locus in the medaka fish (Oryzias latipes) H. Wada, A. Shimada, S. Fukamachi, K. Naruse and A. Shima 123
Behavior Biology
Effects of the consumption of male spermatophylax on the oviposition schedule of females in the decorated cricket, Gryllodes sigillatus E. Kasuya and N. Sato 127
The behavior of Heterolepidoderma sp. (Gastrotricha) R. Banchetti and N. Ricci 131
Animal Diversity and Evolution
Phylogenetic positions of insectivora in eutheria inferred from mitochondrial cytochrome c oxidase subunit II gene M. Onuma, T. Kusakabe and S. Kusakabe 139
Molecular phylogeny of twelve Asian species of epilachnine ladybird beetles (Coleoptera, Coccinellidae) with notes on the direction of host shifts N. Kobayshi, K. Tamura, T. Aotsuka and H. Katakura 147
Taxonomy
A new species of Corynoppia (Acari, Oribatida, Oppiidae) from Biscay (The Basque Country, Norhtern Spain) J.C. Iturrondobeitia and M.I. Saloña 153
Comparative studies of the genus Echinometra from Okinawa and Mauritius Y. Arkaki, T. Uehara and I. Fagoonee 159
