The Proboscis Armature of Turbellaria-Kalyptorhynchia, a Derivative of the Basement Lamina?
Reinhard, M. Rieger; David, A. Doe
Zoologica Scripta 4(1): 25-32
ISSN/ISBN: 0300-3256 DOI: 10.1111/j.1463-6409.1975.tb00715.x
The fine structure analysis of the proboscis teeth in the genus Carcharodorhynchus Meixner and of the proboscis hooks in the genus Diascorhynchus Meixner revealed that these structures are not derived from local cuticularizations of the epidermis, but rather are closely associated with the basement lamina of the proboscis sheath epithelium. In Diascorhynchus the hooks are specializations within the basement lamina enclosing the proboscis.