1. The embryonic development of Schistosoma mansoni eggs: proposal for a new staging system

   • Arnon D. Jurberg
   • Tiana Gonçalves
   • Henrique L. Lenzi

   Original Article 05 May 2009 Pages: 219 - 234

   

2. Evolutionary modification of specification for the endomesoderm in the direct developing echinoid Peronella japonica: loss of the endomesoderm-inducing signal originating from micromeres

   • Minoru Iijima
   • Yasuhiro Ishizuka
   • Takuya Minokawa

   Original Article 12 May 2009 Pages: 235 - 247

   

3. The involvement of engrailed and wingless during segmentation in the onychophoran Euperipatoides kanangrensis (Peripatopsidae: Onychophora) (Reid 1996)

   • Bo Joakim Eriksson
   • Noel N. Tait
   • Michael Akam

   Original Article 12 May 2009 Pages: 249 - 264

   

4. Cloning and characterization of zebrafish protocadherin–17

   • Sayantanee Biswas
   • James D. Jontes

   Short Communication 16 May 2009 Pages: 265 - 271

   

5. Use of freeze-cracking in ontogenetic research in Macrostomum lignano (Macrostomida, Rhabditophora)

   • Maxime Willems
   • Mieke Boone
   • Gaëtan Borgonie

   Technical Note 02 May 2009 Pages: 273 - 279