- bursal slits
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
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bursa — n.; pl. bursae [L. bursa, purse] 1. Any pouch or sac, a sac like cavity. 2. A lateral cuticular extension adanal, or surrounding the tail of male nematodes and acanthocephalans that functions as claspers or guides during copulation; has also been … Dictionary of invertebrate zoology
ophiopluteus — n. [Gr. ophis, serpent; pluteus, shed] (ECHINODERMATA: Ophiuroidea) Brood larva of Phrynophiurida, with arms edged with cilia, that metamorphose into adults after escape from the bursa through the bursal slits or rupture of the aboral disk … Dictionary of invertebrate zoology