Limax millipunctatus

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Limax millipunctatus
Systematics
Order : Lung snails (pulmonata)
Subordination : Land snails (Stylommatophora)
Family : Schnegel (Limacidae)
Subfamily : Limacinae
Genre : Limax
Type : Limax millipunctatus
Scientific name
Limax millipunctatus
Pini , 1884

Limax millipunctatus is a species of nudibranch from the family of snails (Limacidae), which belongs to the land snails (Stylommatophora).

features

Limax millipunctatus is stretched out 115 to 125 mm long, contracted and preserved specimens measure 95 to 100 mm. The jacket shield is rounded at the front end and slightly tapered at the rear end. It is covered with concentric, fine wrinkles. The non-highlighted breathing hole (pneumostome) sits slightly in the rear half of the mantle shield. The little protruding tubercles are egg-shaped. The keel is short and indistinct. The sole of the foot is uniformly white to whitish yellow.

The body is gray-yellow to yellow-brown, with a slight red-brown tinge on the back and the cloak shield. The back, the sides and the mantle are more or less regularly covered with small, sharply defined black spots. The tentacles are gray.

In the reproductive system , the hermaphroditic gland consists of a large, roughly triangular lobe. The hermaphrodite is long and thin. The egg duct (sperm duct) is strongly (glandular?) Inflated in the first section. The penis is about body length, thickly cylindrical, with a long, slightly constricted blind sac (cecum). The penile retractor muscle starts at the end of the blind sac. The vas deferens open near the tip of the penis, but well before the insertion of the penile retractor muscle. The spermathek (seminal vesicle) is pear-shaped and small with a moderately short stem. The free fallopian tube is comparatively long.

Similar species

Limax millipunctatus differs from Limax punctulatus by its slightly darker color, the denser dot pattern and the more or less egg-shaped and shorter tubercles.

Geographical distribution

The species has so far been known from Lombardy , Monte Castello near Givoletto ( Piedmont ), Voltri , Sestri Ponente , ( Liguria , Italy) and Contes (Alpes-Maritimes, south-east France).

Taxonomy

The taxon was first described by Napoleone Pini in 1884 . In 1930 Louis Germain gave a summary description and a schematic illustration of the genital apparatus.

supporting documents

literature

  • Pini, Napoleone 1885. Novità malacologiche. Atti della Società Italiana di Scienze Naturali, 27 (3-4): 230-256, plate 12, Milan. Online at archive.org
  • Germain, Louis 1930: Mollusques terrestres et fluviatiles (première partie). Faune de France, 21: I – VIII, 1–477, 13 plates, Paul Lechevalier, Paris. For download

Individual evidence

  1. ↑ a b Germain (1930: p. 97/8)
  2. ↑ a b Pini (1884: pp. 252–255)
  3. ^ Pollonera, Carlo 1886: Aggiunte alla malacologia terrestre del Piemonte. Bollettino dei Musei di Zoologia ed Anatomia Comparata della R. Università di Torino 1 (17): 1-4, Turin Online at Biodiversity Heritage Library .
  4. ^ Caziot, Eugène 1910: Étude sur les mollusques terrestres et fluviatiles de la principauté de Monaco et du département des Alpes-Maritimes. 559 p., Plates 1–10, Monaco. Online at Biodiversity Heritage Library

On-line

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