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Ultrastructure of the Protonephridia in the Dorvilleid Polychaete Apodotrocha progenerans (Annelida)
Author(s) -
WESTHEIDE WILFRIED
Publication year - 1985
Publication title -
zoologica scripta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.204
H-Index - 64
eISSN - 1463-6409
pISSN - 0300-3256
DOI - 10.1111/j.1463-6409.1985.tb00197.x
Subject(s) - polychaete , ultrastructure , biology , tubule , intracellular , anatomy , bulb , filtration (mathematics) , microbiology and biotechnology , biophysics , ecology , kidney , endocrinology , statistics , mathematics
The achaetous dorvilleid polychaete Apodotrocha progenerans Westheide & Riser, 1983, possesses several pairs of segmentally arranged protonephridia. They consist of a blindly ending terminal cell and three tubule (emission) cells. The terminal cell is a flame bulb with unusual filtration area consisting of interdigitated pedicel‐like projections. Each cell has its own tuft of flagella; and the emission channel is intracellular. The tube‐shaped ‘seamless’ cells are slotted into each other like water‐pipes.