The first record of a Pseudamnicola sp. from Gran Canaria (Spain) (Gastropoda: Hydrobiidae) Author Glöer, Peter Schulstrasse 3, D- 25491 Hetlingen, Germany. - mail gloeer @ malaco. de Author Reuselaars, Robert Traverse 33, 9408 MG Assen, The Netherlands. E-mail: f 2 hreuselaa @ hetnet. nl Author . Author . Author . Author . Author . Author . Author . Author . Author . Author . Author . Author Zeiss text Ecologica Montenegrina 2020 2020-07-24 33 59 61 http://dx.doi.org/10.37828/em.2020.33.7 journal article 10.37828/em.2020.33.7 2336-9744 13231721 urn:lsid:zoobank.org:pub:CBE8AD30-88BE-4E25-9819-0C0D23207631 Pseudamnicola canariensis n. sp. [ fig. 1 ] https://zoobank.org/ urn:lsid:zoobank.org:act: F8CD426F-E47B-452E-8117-94A5EBBE0C47 Material examined: Holotype ( RMNH .MOL.347630) and 29 paratypes from type locality. Holotype : 3.1 mm high, 2.0 mm broad from type locality. Paratypes : 2 ( RMNH .MOL. 347631), 1 ex. coll. Peter Glöer , 6 adult , 15 subadult and 5 juvenile ex. in coll. Robert Reuselaars (no. 631) from type locality . Figure 1. Left: shell of Pseudamnicola canariensis n. sp; right: map of study area. Locus typicus: Small stream in the Azuaje ravine, Gran Canaria , Spain , 28°06'21.71673'' N , 15°34'21.87576'' E , Robert Reuselaars 12.10.2008 leg . Habitat: Slow running stream with vegetation, this species was found on small stones and waterplants. The exact origin of this stream has not been located. Ecology: Species of the genus Pseudamnicola usually live in springs. But if the conditions are right (cold and clear water) they also live in small streams or rivers. This has also been observed by Pseudamnicola skalaensis Glöer & Reuselaars, 2020 , a species known from the Peleponnesos in Greece near the town of Skala ( Glöer et al . 2020 ). Etymology : named after the Gran Canaria of the Canary islands . Description: The greyish shell is ovate with 4.5-5 slightly convex whorls with a deep suture. The aperture is ovate, tapered at the top. The peristome is thickened at the columella. The umbilicus is closed. The body whorl takes 0.8 of shell height. The aperture is 1.3 mm high and 1.5 mm broad. The shell is 3.1 mm high and 2.0- 2.1 mm broad. Differential diagnosis. From Pseudamnicola luteola (Küster, 1852) which occurs in Algeria and Morocco ( Mabrouki et al. 2020 , Glöer et al . 2010 ) it differs in smaller size ( 4.5-5 mm in P. luteola ) and in addition the whorls are stepped. Distribution: Canary islands ; only known from the type locality.