apopyle

apopyle

[′ap·ə‚pīl]
(invertebrate zoology)
Any one of the large pores in a sponge by which water leaves a flagellated chamber to enter the exhalant system.
References in periodicals archive ?
Testing of the closure of the clasper groove/tube was made by inserting a blunt tapestry needle with a coarse thread into the apopyle and through the clasper groove/tube until it came out the distal end of the clasper.
However, if clasper groove spread open, tissue on floor of groove seen to be covering closed tube extending from apopyle half length of clasper from its base.