A circadian neuropeptide, pigment-dispersing factor-PDF, in thelast-summer cicada Meimuna opalifera: cDNA cloning andimmunocytochemistry S. Sato, Y. Chuman, A. Matsushima, Y. Tominaga, Y. Shimohigashi and M. Shimohigashi 821
Physiology
An increase in extracellular Ca2+ concentration induces pigmentaggregation in teleostean melanophores T. Yamada and R. Fujii 829
A temperature-dependent timing mechanism is involved in the circadiansystem that drives locomotor rhythms in the fruit fly Drosophilamelanogaster T. Yoshii, M. Sakamoto and K. Tomioka 841
Behavior Biology
The force driving mating behavior in the house musk shrew(Suncus murinus) O. Matsuzaki 851
The drumming of Isoperla pallida Aubert and Guadalgenusfranzi (Aubert) (Plecoptera, Perlodidae), and review and evolutionaryconsiderations of southern Iberian Peninsula Perlodidae J.M. Tierno de Figueroa, J.M. Luzón-Ortega and K.W. Stewart 871
Genetics
Developmental capacity and chromosome number in the offspring ofartificially produced autotetraploids of Rana nigromaculata Y. Kondo 877
Developmental Biology
Neural marker genes differently expressed in subsets of embryonic neuralcells of the ascidian Halocynthia roretzi K. Yagi and K.W. Makabe 885
Reproductive Biology
Circadian changes in serum concentrations of steroids in Japanese charSalvelinus leucomaenis at the stage of final maturation H. Yamada, R. Satoh, M. Ogoh, K. Takaji, Y. Fujimoto, T. Hakuba,H. Chiba, A. Kambegawa and M. Iwata 891
Egg transport in the coelom of the newt Cynops pyrrhogaster. I.The ovulated egg is transported to the ostium by the ciliary movement ofcoelomic epithelial cells Y. Yamahama and K. Onitake 899
Ecology
Offshore insular variation in the diet of the Taiwanese bamboo viperTrimeresurus stejnegeri (Schmidt) S. Creer, W.-H. Chou, A. Malhotra and R.S. Thorpe 907
Phylogeny
A preliminary study on relationships among selected Australian membersof the tribe Spilomelini (Lepidoptera: Crambidae: Pyraustinae) H. Sutrisno 915
Taxonomy
Phylogenetic relationships between Vorticella convallaria andother species inferred from small subunit rRNA gene sequences T. Itabashi, K. Mikami, F. Jie and H. Asai 931
Three new species of the genus Gammarus (Crustacea, Amphipoda,Gammaridae) from Yunnan, China Z. Hou, S. Li and H. Morino 939
Animal Diversity and Evolution
The behavior and the morphology of sea lilies with shortened stalks:Implications on the evolution of feather stars H. Nakano, T. Hibino, Y. Hara, T. Oji and S. Amemiya 961
