Clathrocaspia logvinenkoi (Golikov & Starobogatov, 1966) Fig. 14 Pyrgula (Caspia) logvinenkoi sp. n. — Golikov & Starobogatov 1966: 354, fig. 1(7). C. [aspia] logvinenkoi (Golikov et Starobogatov, 1966) — Golikov & Starobogatov 1972: 99, pl. 2, fig. 16. C. [aspia] (Cl. [athrocaspia]) logvinenkoi (Gol. et St.) — Alexenko & Starobogatov 1987: 36. Caspia logvinenkoi (Golikov et Starobogatov, 1966) — Kantor & Sysoev 2006: 88, pl. 41, fig. I. Caspia (Clathrocaspia) logvinenkoi (Golikov et Starobogatov, 1966) — Anistratenko 2007a: 25, fig. 2. Clathrocaspia logvinenkoi (Golikov & Starobogatov, 1966) — Wesselingh et al. 2019: 71. Type material. Holotype (ZIN 4489 /1) and one paratype (ZIN 4490 /2) collected by Mordukhay-Boltovskoj in 1937. Type locality. Delta of the Don River (Russia) (Table 1, locality 27). Other material. Three specimens collected in 2006 from the same region as the type locality (IZAN 2006.06.1 – 3; Anistratenko 2007a). Remarks. A detailed description of the species was provided by Anistratenko (2007a). The peculiar shell with broad conical shape, an occasional weak subsutural bulge and thickened peristome strongly suggest that it represents a distinct species. However, the paucity of material makes it difficult to assess whether it is only a local variety of C. knipowitschii. Distribution. Known only from the type locality, where only two living individuals have ever been found (holotype and paratype). This species seems to prefer freshwater, since the salinity at the type locality fluctuates between freshwater and ca. 1‰ (Shokhin et al. 2006; V.V.A., unpublished data). It has never been mentioned from Holocene or any fossil deposits so far.

Published as part of Anistratenko, Vitaliy V., Neubauer, Thomas A., Anistratenko, Olga Yu., Kijashko, Pavel V. & Wesselingh, Frank P., 2021, A revision of the Pontocaspian gastropods of the subfamily Caspiinae (Caenogastropoda: Hydrobiidae), pp. 151-197 in Zootaxa 4933 (2) on page 178, DOI: 10.11646/zootaxa.4933.2.1, http://zenodo.org/record/4550146