Energetics of potassium ion transport in Aplysia gut G.A. Gerencser, S.Y. Loo, K.M. Cornette and J. Zhang 629
Light-Dependent changes in the chick pineal temperature and theexpression of gene: A potential contribution ofin vivo temperature change to the photic-entrainment of thechick pineal circadian clock M. Doi, Y. Nakajima, T. Okano and Y. Fukada 633
A comparative study of osmoregulation in four fiddler crabs (Ocypodidae:Uca) H.-C. Lin, Y.-C. Su and S.-H. Su 643
Biochemistry
Anti-bovine rhodopsin monoclonal antibody recognizing light-dependentstructural change M. Takao, T. Iwasa, H. Yamamoto, T. Takeuchi and F. Tokunaga 651
Reproductive Biology
Switching from asexual to sexual reproduction in the planarianDugesia ryukyuensis: change of the fissiparous capacity alongwith the sexualizing process K. Kobayashi and M. Hoshi 661
Signification of the sexualizing substance produced by the sexualizedplanarians K. Kobayashi, S. Arioka, S. Hase and M. Hoshi 667
Localization of the cytochrome P450 side-chain cleavage enzyme in theinactive testis of the naked mole-rat H. Endo, K. Okanoya, T.J. Park, M. Sasaki, K. Tanemura, J.Kimura and Y. Hayashi 673
Annual changes of urinary progesterone and estradiol-17 of thedugong (Dugong dugon) in captivity Y. Wakai, K. Hasegawa, S. Sakamoto, S. Asano, G. Watanabe and K.Taya 679
Endocrinology
Melatonin and the wintering strategy of the tundra vole,Microtus oeconomus A.-M. Mustonen, P. Nieminen and H. Hyvärinen 683
Immunohistochemical study on the fetal rat pituitary inhyperthermia-induced exencephaly Y.G. Watanabe 689
Morphology
A Comparative study of body wall structures of a pogonophore and anannelid from a phylogenetic viewpoint A. Matsuno and Y. Sasayama 695
Ecology
Variation in cannibalistic polyphenism between populations in thesalamander Hynobius retardatus H. Michimae and M. Wakahara 703
The effect of feeding habitats on dietary shifts during the growth in abenthophagous suctionfeeding fish K. Matsumoto and M. Kohda 709
