Laevicaspia derzhavini ( Logvinenko & Starobogatov, 1969 )

Anistratenko, Vitaliy V., Sitnikova, Tatiana Ya. & Anistratenko, Olga Yu., 2021, Holotypes for three Caspian gastropods of the family Hydrobiidae tracked down description and taxonomic interpretations, Zootaxa 5027 (3), pp. 408-416 : 414

publication ID

https://doi.org/ 10.11646/zootaxa.5027.3.6

publication LSID

lsid:zoobank.org:pub:7D8BE180-AE3E-41CF-A001-3F5CED495A69

persistent identifier

https://treatment.plazi.org/id/7B5E87BB-AB4B-FF90-FF6E-8C83FE739BE0

treatment provided by

Plazi

scientific name

Laevicaspia derzhavini ( Logvinenko & Starobogatov, 1969 )
status

 

Laevicaspia derzhavini ( Logvinenko & Starobogatov, 1969) View in CoL

Fig. 3a–f View FIGURE 3

Pyrgula (Ulskia) derzhavini Logv. et Star. View in CoL — Logvinenko & Starobogatov 1969: 379, fig. 367(9).

Pyrgula derzhavini Logvinenko et Starobogatov, 1968 View in CoL — Kantor & Sysoev 2006: 99, pl. 45, fig. J.

? Ulskia derzhavini ( Logvinenko & Starobogatov, 1969) View in CoL — Wesselingh et al. 2019: 73 View Cited Treatment .

Laevicaspia derzhavini ( Logvinenko & Starobogatov, 1969) View in CoL — Anistratenko et al. 2021: 186 View Cited Treatment , fig. 19f–h.

Type material. Holotype ( ZIN 1 View Materials /534-2021) and 6 paratypes ( ZIN 2 View Materials /534-2021) derive from the same lot, labeled “40/1957” ( Tab. 1, locality 21), collected by B.M. Logvinenko off Cheleken Peninsula on 2 August 1957. Earlier we detected in the ZIN collection another six specimens ( ZIN 3 View Materials /534-2021) collected from this locality (21) determined as “ Caspia derzhavini ”. Since the material formed a single lot that was labelled by Starobogatov himself, we considered it as the type material ( Anistratenko et al. 2021).

Further 21 paratypes ( ZIN 4 View Materials /534-2021–10/534-2021) recently traced are stored in seven separate tubes, labels only marked with the number of station and year of collection ( Table 1) collected in various parts of the South Caspian Sea ( Fig. 1 View FIGURE 1 , localities 14, 17, 18, 20, 38, 39) between 26 June 1956 and 4 August 1957 .

Type locality. Originally given as “Middle and Southern Caspian Sea between 45–81 m water depth” without further details ( Logvinenko & Starobogatov 1969). The holotype was collected in the Caspian Sea near Cheleken Peninsula, Turkmenistan ( Table 1, locality 21) from 55 m depth .

Remarks. This species was originally described as Pyrgula (Ulskia) derzhavini and has previously been classified within the Caspiinae ( Logvinenko & Starobogatov 1969, Kantor & Sysoev 2006). The shells of this species have a very slender elongate shape, and the protoconch ornamentation differs greatly from that found in Caspiinae , showing irregular spiral threads on a smooth surface. Shape and protoconch features strongly remind of Laevicaspia ( Neubauer et al. 2018) . According to the holotype shell characteristics we here confirm its position in the genus Laevicaspia , subfamily Pyrgulinae , as proposed previously ( Anistratenko et al. 2021).

Distribution. Endemic to the Caspian Sea, only known from 7 localities (see above) in the South Basins from depths of 16 and 107 m.

ZIN

Russian Academy of Sciences, Zoological Institute, Zoological Museum

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Littorinimorpha

Family

Hydrobiidae

Genus

Laevicaspia

Loc

Laevicaspia derzhavini ( Logvinenko & Starobogatov, 1969 )

Anistratenko, Vitaliy V., Sitnikova, Tatiana Ya. & Anistratenko, Olga Yu. 2021
2021
Loc

Pyrgula derzhavini

Kantor, Yu. I. & Sysoev, A. V. 2006: 99
2006
Loc

Pyrgula (Ulskia) derzhavini Logv. et Star.

Logvinenko, B. M. & Starobogatov, Ya. I. 1969: 379
1969
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