occurrenceID	taxonID	catalogNumber	collectionCode	institutionCode	typeStatus	verbatimLabel	sex	individualCount	eventDate	recordedBy	recordNumber	decimalLatitude	decimalLongitude	minimumElevationInMeters	maximumElevationInMeters	minimumDepthInMeters	maximumDepthInMeters	country	stateProvince	municipality	locality	references	associatedOccurrences	associatedReferences	associatedSequences	basisOfRecord	eventRemarks	occurrenceRemarks
7C169A17C93BFFBCF5BD7931FB864CC4.mc.44D7215CC938FFBFF6767F8BFC4F4CDF	7C169A17C93BFFBCF5BD7931FB864CC4.taxon			LMSM		Twenty-three specimens of Physa acuta were collected in 2017 from the Bullileo reservoir (36 ° 17 ’ 42.10 ” S, 71 ° 24 ’ 35.09 ” W) (Fig. 1). Bullileo reservoir is an artificial lake created for agricultural irrigation located about 50 km east of Parral city in the Maule Region. The reservoir is relatively isolated from human influence on the western edge of the Andes Mountain range, although in the warmer months it is used for sport fishing and recreation. The environment is made up of hills covered by exuberant native vegetation. On the shore of the lake, it is possible to find stones and abundant macrophytes that harbor snails. Physa acuta was identified using shell characters, soft body characters and anatomy of the reproductive system (see Collado 2017). The shell and soft body of the snails were photographed using a stereomicroscope (Motic). Chaetogaster specimens were isolated by microdissection of the snails and photographed with a light microscope (Motic). Worm images were also obtained using a Hitachi SU 3500 scanning electron microscope (SEM). The Chaetogaster worms were identified as C. limnaei based on Collado et al. (2019), taxonomic keys and anatomical descriptions from various sources (Brinkhurst 1971, 1986, Kathman and Brinkhurst 1998, Cichy et al. 2016, Gelder 1989, Gruffydd 1965 a, b, Khalil 1961). Voucher specimens are deposited at the Laboratorio de Malacología y Sistemática Molecular, Universidad del Bío-Bío, Chillán, Chile (LMSM UBBCC- Chaetogaster limnaei 1,2,8; LMSM UBBCC- Physa acuta 1,7,9)		23				-36.29503	-71.40975					Chile	Maule Region	Parral city	Bullileo reservoir	https://treatment.plazi.org/id/7C169A17C93BFFBCF5BD7931FB864CC4#44D7215CC938FFBFF6767F8BFC4F4CDF				MaterialCitation		
