Clathrocaspia valkanovi
| Main Authors: | Anistratenko, Vitaliy V., Neubauer, Thomas A., Anistratenko, Olga Yu., Kijashko, Pavel V., Wesselingh, Frank P. |
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| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2021
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4559956 |
Daftar Isi:
- † Clathrocaspia valkanovi (Golikov & Starobogatov, 1966) Fig. 18g, h P. [yrgula] (Caspia) baeri [sic] valkanovi subsp. n. — Golikov & Starobogatov 1966: 354–355, fig. 1(9). Caspia (Clathrocaspia) valkanovi valkanovi (Gol. et St.) — Alexenko & Starobogatov 1987: 32, 37. Caspia valkanovi (Golikov et Starobogatov, 1966) — Kantor & Sysoev 2006: 88, pl. 41, fig. N. Caspia valkanovi (Golikov & Starobogatov, 1966) — Wesselingh et al. 2019: 68–69. Type material. Holotype only (ZIN 4367 /1). Type locality. Southern shore of Crimea, from phaseoline silts (Table 1, locality 28), probably reworked from Neoeuxinian (Late Pleistocene) strata (compare C. knipowitschii aluschtensis). Remarks. Originally this taxon was described (Golikov & Starobogatov 1966) as the Black Sea subspecies of Caspia baerii, but later Alexenko & Starobogatov (1987) considered it a separate species and so restricted C. baerii to the Caspian Sea. Records of C. valkanovi are known off the southern Crimean coast as (sub)fossil shells only. The holotype is poorly preserved and does not allow a proper assessment of identity and status. The general shape and size are indicative of the genus Clathrocaspia and traces of the reticulate sculpture can be seen under high magnification. The shell resembles closely the holotype of the subfossil subspecies C. knipowitschii aluschtensis retrieved from the same deposits (Fig. 13e), and both might be synonyms. Furthermore, we are not entirely certain as to the stratigraphic age of the stratigraphic origin of this species. The phaseoline silt is a marine Holocene unit, which may contain reworked Late Pleistocene Neoeuxinian species (Wesselingh et al. 2019). Given the uncertainty related to the species’ identity and age, we treat this taxon as a nomen dubium. Distribution. Endemic to the Black Sea Basin.
- 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 pages 185-186, DOI: 10.11646/zootaxa.4933.2.1, http://zenodo.org/record/4550146