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The monophyly of Pteropoda is the subject of a lengthy debate; they have even been considered as paraphyletic with respect to cephalopods. [1] Current consensus, guided by molecular studies, leans towards interpreting the group as monophyletic. [2] Pteropoda encompasses the two clades Thecosomata, the sea butterflies, and Gymnosomata, the sea ...
Cavolinia inflexa are members of the thecosome pteropod genus that dwell in the epipelagic zone feeding on arctic snow and smaller microorganisms. While it is known that Cavolinia inflexa are filters feeders, their reproductive tendencies and behaviors are not well studied.
Peracle reticulata is a species of Pteropoda, a form of sea snail. Distribution. The species lives in deep waters, approximately 900 meters below sea level. [1]
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The Thecosomata (collective/plural: thecosomes, [1] meaning "case/shell-body"), [2] or sea butterflies, are a taxonomic suborder of small, pelagic, free-swimming sea snails known as holoplanktonic opisthobranch gastropod mollusks, in the order Pteropoda (also included within the informal group Opisthobranchia).
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Creseidae is a family of gastropods belonging to the order Pteropoda. [1] Genera: [1] Boasia Dall, 1889 † Bovicornu Meyer, 1886 † Bowdenatheca R. L. Collins, 1934 † † Bucanoides Hodgkinson, 1992 † Camptoceratops Wenz, 1923 † Cheilospicata Hodgkinson, 1992; Creseis Rang, 1828 † Euchilotheca Fischer, 1882 † Loxobidens Hodgkinson ...
Others would omit Pteropoda and use its containing clade Euopisthobranchia or subclass Heterobranchia. The other suborder of pteropods, Thecosomata , is superficially similar to sea angels, but are not closely related; some authorities include both Thecosomata and Gymnosomata as separate branches of the order Pteropoda , whereas others list ...