Spelaeodiscus hauffeni (Schmidt, 1855)

Pall-Gergely, Barna, Deli, Tamas, Eross, Zoltan Peter, Reischuetz, Peter L., Reischuetz, Alexander & Feher, Zoltan, 2018, Revision of the subterranean genus Spelaeodiscus Brusina, 1886 (Gastropoda, Pulmonata, Spelaeodiscidae), ZooKeys 769, pp. 13-48 : 13

Spelaeodiscus hauffeni (Schmidt, 1855) Figure 8A-O

Helix Hauffeni Schmidt, 1855: 3-4.

Patula Hauffeni - Clessin 1887: 104.

Aspasita Hauffeni - Sturany and Wagner 1914: 67, plate 2, figs 11a-c.

Spel aeodiscus hauffeni - Pilsbry 1926: 185, Plate 22, Figs 9 - 11 .

Spelaeodiscus hauffeni - Bole 1965: 351-352, fig. 1b, 2a, Plate 76, fig. A.

Spelaeodiscus (Spelaeodiscus) hauffeni - Gittenberger 1969: 292-293, fig. 1.

Spelaeodiscus hauffeni - Welter-Schultes 2012: 213.

Type material.

Krain: Krimberg-Grotte, ex coll. Schmidt, SMF 53902/3 syntypes; No locality, ("Orig. Ex."), NHMW 52776/2 syntypes (Figure 8A-E ).

Other material.

Velikajama, Soko Kod, Sela Dopilo (geographic position unknown), coll. Edlauer ex coll. Dabović, NHMW 48473/2 shells (1 adult + 1 juvenile) (in brackets: neben 49.999, probably mistyped 48.999, because this was a mixed lot of S. hauffeni and S. dejongi ; this is obviously incorrect locality for this species); Jama nadjama pri Gnezdu (Izilovice) (= Jama pri Gnezdu at 45.939°N, 14.271°E), coll. Edlauer ex coll. Kuščer, NHMW 49137(?)/1 (incorrect locality); Krain, coll. Oberwimmer, NHMW 71640/O/00161/2; Carn., coll. Schmidt, NHMW 112346/2; Krain, coll. Kobelt ex coll. Ullepitsch, SMF 10663 / 2 adult + 2 juvenile shells; Krain: Stubič, coll. C.R. Boettger, 1905, SMF 112878/1; Krainer Höhlen, coll. Kaltenbach ex coll. Müller, SMF 259470/1; Carniolia (= Krain), coll. Knobbe ex coll. Hauffen, SMF 53904 /1; Hoehle in Innerkrain , leg. Sever, coll. Ehrmann ex coll. Absolon, SMF 53905 /1; Tekavičja jama (= Tkavčja jama, 45.824°N, 14.721°E), Dobrepolje, NHMW 112350/2 strongly corroded shells; Krain, Tekavcja jama, Debrepolje, coll. Edlauer ex coll. Kuščer, NHMW 48468/3; Tekarija jama b. Dobropolje, coll. S.H. Jaeckel ex coll. Kuščer, SMF 200961/3; Krain, Tekavčja jama, Dobrepolje, coll. Haas ex coll. Kuščer, SMF 53906 /1; Krain, Berjakovo Brezno (= Malo Brezarjevo brezno, 46.080°N, 14.436°E), n. w. von Laibach, coll. Retaner (?), NHMW 12314/2; Berjakovo Brezno, nw v. Laibach, Krain, coll. Klemm ex coll. Edlauer, NHMW 79000/K/02938/2; Same data, coll. Schlickum, ex coll. Edlauer, SMF 275440/2; Berjakovo Brezno bei Dolnice n.w. von Ljubljana, coll. S.H. Jaeckel ex coll. Edlauer, SMF 200962/1; Radetina pećina, coll. Edlauer ex coll. Kuščer, NHMW 48751/6; Spodnja Skedevenica (at 45.854°N, 14.639°E), vel. Lašče, coll. Edlauer ex coll. Kuščer, NHMW 48883/15; Spodnja Skedevnica, coll. Edlauer ex coll. Kuščer, NHMW 48422/2; Spodnja Kedenrica, coll. W. Klemm ex coll. Kuščer, NHMW 33672/1 (figured shell, Fig. 8K-O ); Sponja Skednevica bei Preserje, coll. Edlauer ex coll. Kuščer, NHMW 48124/2; Am Eingang der Doline Jama bei Kompole (=Kompoljska jama at 45.800°N, 14.731°E), S. Oest. von Dobrepolje, coll. Klemm, NHMW 112347/1; In der Raska Skedebnza bei Ponikve südl. von Dobrepolje (= Skedenc at 45.89687418°N, 14.50100919°E), coll. Klemm, NHMW 112348/3; Reoteiner Grotte bei Poduzik (?) bei Ljubljana (Kalkofen) ( Podutiško brezno at 46.076°N, 14.445°E), coll. Edlauer ex coll. Kuščer, NHMW 49111/1; Brezarjeva brezno pri Boduzik (?), coll. Edlauer ex coll. Kuščer, NHMW 48390/2; Brezno v. Leskovi dolini (at 45.941°N, 14.256°E), coll. Edlauer ex coll. Kuščer, NHMW 49200/1; Mašun b Gratenbrunn (probably Jama na Mašunu at 45.630°N, 14.373°E), Krain, leg. Schollmayer, NHMW 112349/ 2 juvenile shells; Duplica (= Dupliška jama at 45.963°N, 14.684°E), coll. Edlauer ex coll. Kuščer, NHMW 48576/16; Jama v Jurčelovih (?) (Jama 1 v Jurcetovih Percah at 46.09984722°N, 14.42093707°E or Jama 2 na Jurcetovih Percah at 46.101°N 14.418°E, the first is indicated on the map), percah Tosko čelo, coll. Edlauer ex coll. Kuščer, NHMW 48688/16; Zakrita jama odd B (at 45.925°N, 14.293°E), coll. Edlauer ex coll. Kuščer, NHMW 48748/ 1 juvenile shell; Unterkrain: Grotte Thauzhia jama, coll. C. v. Heyden ex coll. N. Hoffmann, SMF 53903 /1; Same data, coll. Gysser ex coll. Heynemann ex coll. C. v. Heyden, SMF 53901 /2; Same data, coll. Heynemann ex coll. C. v. Heyden ex coll. N. Hoffmann, SMF 259469/3; Krain: Jeliarc-Grotte (maybe Jeliare or Jelice), coll. Th. Krüper, SMF 112877/1; Höhle Malo Bukuje bei Dobrova, Krain, coll. Dr. Leo Rušnov, ex coll. Dr. A. Oberwimmer, NHMW 71770/R/19 (1 photographed shell, Fig. 8F-J ) .

Diagnosis.

A medium sized species with very widely spaced, strong ribs, rounded, toothless aperture, and finely granular protoconch.

Description.

Spire somewhat elevated; protoconch consists of 1.5-1.75 whorls, very finely granulated, rather matte, not glossy; teleoconch with strong ribs that are supported by fine periostracal filaments in fresh shells; ribbing less regular than in other congeneric species; ribs widely spaced (41-52 ribs on body whorl); between main ribs some fine wrinkles discernible; entire shell with 3.75-4.25 whorls; aperture toothless, semilunar/rounded; peristome slightly thickened, slightly reflected in direction of umbilicus; umbilicus regular funnel-shaped, relatively narrow.

Measurements. SW: 2.8-3.5 mm (median = 3.0 mm), SH: 1.7-1.9 mm (median = 1.8 mm), AW: 1.1-1.4 mm (median = 1.2 mm), AH: 1.0-1.3 mm (median = 1.1 mm), (n = 6; largest and smallest specimens of multiple populations measured).

Differential diagnosis.

The most similar taxon to Spelaeodiscus hauffeni is S. albanicus edentatus ssp. n. in terms of shell size, shape, and rib density. However, the latter one is usually larger, has a glossier protoconch, a less rounded aperture caused by the straighter basal part, and the peristome edge on the palatal side is more strongly expanded (rather thickened only in S. hauffeni ).

Variation among specimens.

Spelaeodiscus hauffeni shows some variability in terms of shell size and spire height, but the rib density and the formation of the aperture are stable characters.

Distribution.

This species is distributed in the southeastern Alps (Central Slovenia) relatively far from the ranges of its congeneric taxa. Slapnik (2005) found shells in the Škocjan Caves Regional Park, which are probably of Holocene age (Figure 9 ).

Conservation status.

As there are several known locations and no reason to suppose that the habitat quality, habitat extent or population are deteriorating or extremely fluctuating, it was assessed as Least Concern (LC) by Reischütz (2017b).

Figures

Figure 8. Shells of Spelaeodiscus hauffeni (Schmidt, 1855). A-E Syntype (NHMW 52776) F-J NHMW 71770 / R / 19 K-O Slovenia, Spodnja Kedenrica (NHMW 33672).

Figure 9. Distribution of Spelaeodiscus hauffeni (Schmidt, 1855).

Figure 11. Spelaeodiscus obodensis Bole, 1965. A-E Pecina u Peckom Brdu cave, above Zacir (HNHM 18062) F-J Montenegro, Ostrog, entrance of the penultimate parking lot (NHMW 112365) K-O Montenegro, 500 m south of the bridge over the Sitnica river (NHMW 112366).