Open Access

ARTICLE

Microanatomical Characteristics of Marginal Ommatidia in Three Different Size-Classes of the Semi-Terrestrial Isopod Ligia exotica (Crustacea; Isopoda)

ESSI KESKINEN¹ , YASUHARU TAKAKU² , V. BENNO MEYER-ROCHOW³, TAKAHIKO HARIYAMA⁴

1 Department of Biology, University of Oulu, P.O. Box 3000, SF-90014 Oulu, Finland.
2 Department of Developmental Genetics, National Institute of Genetics, Mishima 411- 8540, Japan.
3 School of Engineering and Science, International University Bremen, D-28725 Bremen, Germany.
4 Department of Biology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan

Corresponding Author: V.B. Meyer-Rochow, Fax: (+49 - 421) 200 49 3242. E-mail: