This dataset comprises 175 records of the freshwater snail Pomacea scalaris (Caenogastropoda: Ampullariidae), gathered from bibliographic sources, human observations, museum specimens and field surveys conducted by the responsible research team.

This species is native to Río de la Plata Basin (South America); however, it was accidentally introduced into Southeast Asia along with Pomacea canaliculata and Pomacea maculata. While the latter two species have spread widely and caused significant damage to aquatic crops and  to biodiversity, Pomacea scalaris has not exhibited invasive behavior. 

The primary purpose of this database is to document both historical and current occurrence records of the species, across its native and introduced range, in order to provide key information for the analysis of distribution partterns, ecological niche modeling, and risk assessment of potential range expansion.

GBIF url: https://www.gbif.org/dataset/5425359c-6434-4a30-85ce-b3f3b41d93ec
Citation: Asgrizze V, Seuffert M E, Martín P R, Soria A L, Burela S (2025). Native and non-native records of Pomacea scalaris (d'Orbigny, 1835). Instituto de Ciencias Biológicas y Biomédicas del Sur (INBIOSUR). Occurrence dataset https://doi.org/10.15468/mtja7s accessed via GBIF.org on 2025-08-18.