Definition of Preopercle. Meaning of Preopercle. Synonyms of Preopercle

- The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills;...
- smaller versions of angelfish (Pomacanthidae), but unlike these, lack preopercle spines at the gill covers. Some members of the genus Heniochus resemble...
- or "covering" and dasys meaning "rough", a reference to the serrated preopercle. There are currently 34 recognized species in this genus: Pomadasys aheneus...
- a fish (on the inner surface of the opercle, near the junction of the preopercle) as well as a reduced "false" gill in some gastropods. In teleost fish...
- jawless fish), and the ch****, which extends from eye to preopercle. The operculum and preopercle may or may not have spines. In sharks and some primitive...
- aserrated preopercle which has a deep incision on its lower margin. They sometimes have a bony **** between the operculum and the preopercle which is most...
- centimetres (9.1 in) TL. Like N. opercularis, it has a venomous spine on its preopercle. Neoniphon sammara lives alone or in small groups on seagr**** beds and...
- crevices, caves, or under ledges. Red and silvery colours dominate. The preopercle spines (near the gill opening) of the members of the subfamily Holocentrinae...
- angelfish are distinguished from butterflyfish by the presence of strong preopercle spines (part of the gill covers) in the former. This feature also explains...
- of its body and a distinguishing white spot at the upper corner of its preopercle. Its most notable features are its subocular bioluminescent organs which...