Arion nobrei

Arion nobrei
Arion nobrei (holotype)
Conservation status
Data Deficient  (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Arionidae
Genus:	Arion
Species:	A. nobrei
Binomial name
Arion nobrei Pollonera, 1889
Synonyms
Arion (Mesarion) nobreiPollonera, 1889 · alternative representation

Arion nobrei, is a large terrestrial gastropod mollusk in the family Arionidae, the round back slugs. ^[1]

Description

(Original description in Latin) It is a large, wrinkled animal. The dorsal warts are numerous, keeled, and somewhat wavy, and they are separated by deep and narrow grooves. The mantle is minutely granular, and it is posteriorly rounded to sub-truncated, with the pulmonary aperture being far anterior. The animal is entirely pitch black, although sometimes the margin of the foot is paler and is marked with very black transverse lines. The sole is black and uniform in color, or it has a median zone that is slaty and slightly paler. The mucus is clear (decolorized). The maximum length is 12 centimeters. ^[2]

Distribution

This species occurs in Portugal.

References

1. Arion nobrei Pollonera, 1889 . 30 October 2025. Retrieved through: World Register of Marine Species .
2. Pollonera, C. (1889). "Nuove contribuzioni allo studio degli Arion europei". Atti della Reale Accademia delle Scienze di Torino. 24: 404. Retrieved 30 October 2025. This article incorporates text from this source, which is in the public domain .

• Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017.