
Physoclisti are fishes that lack a connection between the gas bladder and the alimentary canal, the bladder serving as a buoyancy organ only. Addition and removal of the gases from the gas bladder in these fishes occurs through specialised structures called the gas gland and ovale respectively. The pneumatic duct that connects the gut and gas blad...
Found on
http://en.wikipedia.org/wiki/Physoclisti

• (n. pl.) An order of teleost in which the air bladder has no opening.
Found on
http://thinkexist.com/dictionary/meaning/physoclisti/
Phys`o·clis'ti noun plural [ New Latin , from Greek ... a bellows + ... to close.]
(Zoology) An order of teleost in which the air bladder has no opening.
Found on
http://www.encyclo.co.uk/webster/P/81
No exact match found.