Turbellarian taxonomic database
Placorhynchus tetraculeatus
2008
Fig. 239
Copulatory organ. A,B from Sylt. C-E from Arcachon. A. All spines with separate basal piece. B. Posterior spines of common basal plate. C. Spines with short basal piece. D,E. The same individual. Photos at different focusing. (A,B Armonies & Hellwig 1987; C-E Ax original 1964)
from Ax P (2008) Plathelminthes aus Brackgewässern der Nordhalbkugel.
Akademie der Wissenschaft und der Literatur Mainz, Franz Steiner Verlag, Stuttgart, 696 pp.
