Structure and growth of the cidaroid socket-joint lantern of Aristotle compared to the hinge-joint lanterns of non-cidaroid regular echinoids (Echinodermata, Echinoidea) Konrad Märkel OriginalPaper Pages: 1 - 32
Fine structure of the male reproductive system in two species ofHaplognathia sterrer (Gnathostomulida, Filospermoidea) Elizabeth B. KnaussReinhard M. Rieger OriginalPaper Pages: 33 - 48
Neue Abdominaldrüsen bei Ameisen Karla JessenUlrich MaschwitzMichael Hahn OriginalPaper Pages: 49 - 66
Cobalt mapping of neurons with processes in pedal nerves in the pulmonate snailMelampus Linda B. KahanStacia Moffett OriginalPaper Pages: 81 - 91
Haemal and coelomic circulatory systems in the arms and pinnules ofFlorometra serratissima (Echinodermata: Crinoidea) John C. GrimmerNicholas D. Holland OriginalPaper Pages: 93 - 109
Zur Feinstruktur der Spermien und Spermiocytogenese vonProkoenenia wheeleri (Rucker, 1901) (Palpigradi, Arachnida) Gerd Alberti OriginalPaper Pages: 111 - 120