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, 1805Pneumoderma atlanticum Oken, 1815Pneumoderma degraaffi van der Spoel & Pafort-van Iersel, 1982 – distribution: Sargasso Sea, length: 11.8 mmPneumoderma mediterraneum van Beneden, 1838 – distribution: Florida, Brazil, Mediterranean, length: 20 mmPneumoderma peronii Lamarck, 1819 – distribution: Red SeaPneumoderma 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

Genus: Pneumodermopsis Keferstein, 1862Pneumodermopsis canephora Pruvot-Fol, 1924Pneumodermopsis ciliata – distribution: circumglobal, oceanic, description: possesses five tentacles, each ending in a big suctorial diskPneumodermopsis macrochira Meisenheimer, 1905 – distribution: oceanicPneumodermopsis michaelsarsi Bonnevie, 1913 – distribution: Bermuda, oceanicPneumodermopsis oligocotyla Massy, 1917Pneumodermopsis paucidens – distribution: Brazil, oceanic, length: 5 mmPneumodermopsis pupula Pruvot-Fol, 1926Pneumodermopsis spoeli Newman & greenwood, 1988 – Distribution: Australia.Pneumodermopsis teschi van der Spoel, 1973 – distribution: oceanic
Genus Schizobrachium Meisenheimer, 1903Schizobrachium polycotylum Meisenheimer, 1903 – distribution: oceanic
Genus Spongiobranchaea d'Orbigny, 1836Spongiobranchaea australis d'Orbigny, 1836 – distribution: Argentina, Australia, sub-Antarctic, Antarctica, oceanic, length: 22 mmSpongiobranchaea intermedia Pruvot-Fol, 1926 – distribution: oceanic
Genus Abranchaea Zhan Fu-Sui, 1975Abranchaea chinensis Zhan Fu-Sui, 1975
Genus Platybrachium Minichev, 1976