Microanatomical Characteristics of Marginal Ommatidia in Three Different Size-Classes of the Semi-Terrestrial Isopod Ligia exotica (Crustacea; Isopoda)
Department of Biology, University of Oulu, P.O. Box 3000, SF-90014 Oulu, Finland. ;Department of Developmental Genetics, National Institute of Genetics, Mishima 411- 8540, Japan. ;School of Engineering and Science, International University Bremen, D-28725 Bremen, Germany. ;Department of Biology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan