Pneumodermatidae
The Pneumodermatidae are a family of sea angels, or small floating predatory sea snails or sea slugs. They are pelagic marine heterobranch opisthobranch gastropod mollusks in the clade Gymnosomata.
These small pelagic snails lack shells. They are carnivores, equipped with swimming parapoda, strong jaws, and grasping tentacles, often with suckers resembling those of cephalopods.
Genera
Genera within the family Pneumodermatidae include:Genus: Pneumoderma de Roissy, 1805
- Pneumoderma atlanticum Oken, 1815
- Pneumoderma degraaffi van der Spoel & Pafort-van Iersel, 1982 – distribution: Sargasso Sea, length: 11.8 mm
- Pneumoderma mediterraneum van Beneden, 1838 – distribution: Florida, Brazil, Mediterranean, length: 20 mm
- Pneumoderma peronii Lamarck, 1819 – distribution: Red Sea
- Pneumoderma violaceum d'Orbigny, 1836 – distribution: Bermuda, oceanic, length: 25 mm, description: This pteropod grabs its prey with two powerful suckers, each with about 30 suctorial disks, then it bulges out its long proboscis.
- ** Pneumoderma violaceum pacificum Dall, 1871
- ** Pneumoderma violaceum violaceum d'Orbigny, 1836
- Pneumodermopsis canephora Pruvot-Fol, 1924
- Pneumodermopsis ciliata – distribution: circumglobal, oceanic, description: possesses five tentacles, each ending in a big suctorial disk
- Pneumodermopsis macrochira Meisenheimer, 1905 – distribution: oceanic
- Pneumodermopsis michaelsarsi Bonnevie, 1913 – distribution: Bermuda, oceanic
- Pneumodermopsis oligocotyla Massy, 1917
- Pneumodermopsis paucidens – distribution: Brazil, oceanic, length: 5 mm
- Pneumodermopsis pupula Pruvot-Fol, 1926
- Pneumodermopsis spoeli Newman & greenwood, 1988 – Distribution: Australia.
- Pneumodermopsis teschi van der Spoel, 1973 – distribution: oceanic
- Schizobrachium polycotylum Meisenheimer, 1903 – distribution: oceanic
- Spongiobranchaea australis d'Orbigny, 1836 – distribution: Argentina, Australia, sub-Antarctic, Antarctica, oceanic, length: 22 mm
- Spongiobranchaea intermedia Pruvot-Fol, 1926 – distribution: oceanic
- Abranchaea chinensis Zhan Fu-Sui, 1975