Dalmatian predatory snail
| Dalmatian predatory snail | ||||||||||||
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Housing of Poiretia cornea |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Poiretia cornea | ||||||||||||
| ( Brumati , 1838) |
The Dalmatian predatory snail ( Poiretia cornea ) is a predatory land snail from the family of Spiraxidae , which is native to the northern Mediterranean and belongs to the suborder of land snails (Stylommatophora).
features
The right-hand wound, slender, spindle-shaped, quite thin-walled housing is about 3.2 to 4.7 cm long in the adult animal and has a diameter of about 1.0 to 1.7 cm. It then has about five and a half to six and a half only slightly convex circumferences with slightly irregular jagged seams and fine strips of growth. The narrow case mouth is about 5.5 mm to 9.5 mm wide. The spindle is only slightly bent. The surface of the shell, like the snail itself, is typically light brownish yellow in color.
The mucus secreted by the suprapedal gland (at the front end of the foot) contains acid that dissolves the shell of captured snails, allowing the predatory snail to reach the meat of the prey. This is crushed with the help of the powerful radula .
Occurrence, way of life and distribution
The Dalmatian predatory snail can be found both in forests and maquis in the karst landscape of the Dinaric Mountains along the Adriatic coast . Its natural range extends from Monfalcone in northeastern Italy to Slovenia , in whose southwestern parts of the country it is common, Croatia ( Istria and Dalmatia ), parts of Bosnia and Herzegovina and Montenegro to western Serbia and southern Albania . There are also deposits on the Gargano Peninsula in southern Italy as well as in eastern Libya (former Cyrenaica province ) that may have been introduced by humans.
It eats other snails, notably snails and pomatiidae . The shells of snails it has eaten can be recognized by the large acid-etched holes characteristic of this species of predator . In addition to snails, earthworms are also eaten.
literature
- Leonardo Brumati: Catalogo sistematico delle conchiglie terrestri e fluviatili osservate nel territorio di Monfalcone . Pp. 1-56 (1), plate 1. Paternolli, Gorizia 1838.
- Renate A. Helwerda (2015): Predatory Poiretia (Stylommatophora, Oleacinidae) snails - histology and observations . Vita Malacologica 13, pp. 35-48.
- Klaus Kittel (1997): Remarkable, Unusual, and Little-Known Mollusks. I. Observations on the Dalmatian predator snail Poiretia cornea (Brumati, 1838) (Pulmonata, Oleacinidae) . Club Conchylia Information 29, pp. 27-34.
- Rajko Slapnik: Holocenski kopenski in sladkovodni polži (Gastropoda) v Viktorjevem spodmolu . In: Ivan Turk: Viktorjev spodmol in Mala Triglavca . Opera instituti archaeologici Sloveniae, Ljubljana 2004. pp. 92-105, here p. 101. Želodčarka ali sredozemska roparica (Poiretia cornea).
Web links
- F. Welter Schultes: Species summary for Poiretia cornea (Brumati, 1838) . AnimalBase, SUB Goettingen.
- The diet of snails II: Carnivorous land snails . The Dalmatian predatory snail ( Poiretia cornea ) on Weichtiere.at