Papilloderma altonagai

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Papilloderma altonagai
Systematics
Order : Lung snails (pulmonata)
Subordination : Land snails (Stylommatophora)
Superfamily : Papillodermatoidea
Family : Papillodermatidae
Genre : Papilloderma
Type : Papilloderma altonagai
Scientific name of the  superfamily
Papillodermatoidea
Wiktor, Martin & Castillejo, 1990
Scientific name of the  family
Papillodermatidae
Wiktor, Martin & Castillejo, 1990
Scientific name of the  genus
Papilloderma
Wiktor, Martin & Castillejo, 1990
Scientific name of the  species
Papilloderma altonagai
Wiktor , Martin & Castillejo , 1990

Papilloderma altonagai is a species of nudibranch from the suborder of land snails (Stylommatophora). It is the only species in the genus Papilloderma , which in turn is the only genus in the family Papillodermatidae (and the superfamily Papillodermatoidea).

features

The animals are stretched to max. about 3 cm long and relatively slender; the shape can also be described as worm-shaped. The coat shield is very small and sits roughly in the middle of the animal's back. The case is very rudimentary and consists only of a flattened, but spirally rolled up plate in the jacket. It is almost completely covered by the coat, only a small part is still visible through a small recess in the coat. The breathing hole (pneumostome) is located directly next to the housing part. The top of the body is covered with regular rows of conical protuberances (papillae), which run obliquely downwards in front, almost straight down in the middle and downwards obliquely in the back. A light keel is formed on the back. The sole of the foot is narrow and undivided. The body is cream-colored, with the back being a little darker in color, as are the papillae. There is no jaw. The radula (rasping tongue) has 12 to 14 teeth per transverse row, there are about 23 transverse rows. There is no central tooth within a transverse row, the lateral and marginal teeth only show a point (unicuspid).

Papilloderma altonagai (Spain)
Puerto de Alisas
Puerto de Alisas
Sanctuario de Covadonga
Sanctuario de Covadonga
Sites of Papilloderma altonagai

Way of life, occurrence and distribution

Little is known about the way of life of Papilloderma altonagai . Because of the radula, it is believed to be predatory. So far, the species has only been detected in northern Spain (Asturias and Cantabria) at about 700 m above sea level. It lives there in the damp meadows, very hidden under stones or in crevices. It is therefore difficult to find; so far only very few specimens have ever been found. Meaningful information on frequency and distribution have therefore not yet been provided.

literature

  • Philippe Bouchet & Jean-Pierre Rocroi: Part 2. Working classification of the Gastropoda . Malacologia, 47: 239-283, Ann Arbor 2005 ISSN  0076-2997
  • Anatolij A. Schileyko: Treatise on Recent Terrestrial Pulmonate Molluscs Part 11 Trigonochlamydidae, Papillodermidae, Vitrinidae, Limacidae, Bielziidae, Agriolimacidae, Boettgerillidae, Camaenidae. Ruthenica, Supplement 2 (11): 1467-1626, Moscow 2003 ISSN  0136-0027
  • A. Wiktor, R. Martin and J. Castillejo: A new slug family Papillodermidae with description of a new genus and species from Spain (Gastropoda, Pulmonata terrestria nuda). Malakologische Abhandlungen Museum für Tierkunde Dresden, 15 (1): 1–18, Dresden 1990 ZDB -ID 2280187-X .

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