Also found in: Encyclopedia.
Related to Pleurobranchia: Pleurobrachia


n.1.(Zool.) Same as Pleurobranch.
References in periodicals archive ?
Clade C differs from Clades A and B by the lack of pleurobranchia only on fifth pereiopod and the presence of pterygostomian and parapenaeid spines.
ensis within peneids seems to agree with some atypical morphologic characters like the petasma with distolateral projections, the lack of pleurobranchia and exopod on fifth pereiopod, the fifth male pereiopod modified and the presence of basial spine on third maxilliped and pereiopods 2-3.
On the other hand, sicyoniids possess morphologic characters that otherwise are unique to Penaeoidea: a single pleurobranchia on the fifth pereiopod, uniramous third to fifth pleopods, lack of exopods in all pereiopods, closed petasma with distal, sclerotized projections, without true spermatopores, and thelycum with lanceolate median plate.