We could not examine, however, the entire abfrontal surface of the gill given our inability to maneuver the OIT of the endoscope into the suprabranchial
chamber of the mantle cavity.
Diagnosis: rostrum short, not overreaching eyes, dorsal and lateral margins swollen, dorsal margin with 6 teeth, ventral margin strongly convex and unarmed; carapace with anteriorly convex groove connecting suprabranchial
groove to a groove extending dorsoposteriorly from near mid length of hepatic groove.
The gill basket temporarily divided the pallial cavity into suprabranchial
and infrabranchial chambers.
sb], the suprabranchial
pore, above and in front of gill opening (Fig.
Before fertilization the eggs pass into the suprabranchial
chamber and then into the water tubes of the gills where they are fertilized (Pennak, 1989).
Eggs are released into the water tubes of the suprabranchial
cavity and are fertilized there by sperm brought in by the ventilating water currents.
la), in Liparis there is on each side a single sensory pore called the suprabranchial
pore, dorsal to the external gill slit, at the posterior end of the temporal sensory line, opening from a short ossified tube.
1) is localized on epithelial surfaces of the mantle, gills and visceral mass, in the gill water tubes and suprabranchial
cavities, and on the labial palps of zebra mussels (Laruelle et al.
1b), allowing the flow of water from the infrabranchial to the suprabranchial
The embryos or larvae are then raised in the mantle cavity, suprabranchial
, or infrabranchial chamber of the female (Buroker 1985, Chaparro et al.
The variety of tissue junctions increases the complexity of the branchial architecture, with 'interfilamentar spaces' or 'gaps' (also suprabranchial
chambers, vertical water tubes, interlamellar cavity) and 'interfilamentar pores' (also ostia, slits) through which the inhaled water passes.
In addition, endoscopic observations were made from the suprabranchial
chamber of a freshwater unionid, Lampsilis anodontoides.