Australocosmica rotunda, Criscione, Francesco & Köhler, Frank, 2013

Criscione, Francesco & Köhler, Frank, 2013, Six new species of Australocosmica Köhler, 2011 from the Kimberley islands, Western Australia (Mollusca: Pulmonata: Camaenidae), Zootaxa 3608 (2), pp. 101-115 : 112

publication ID

https://doi.org/ 10.11646/zootaxa.3608.2.1

publication LSID

lsid:zoobank.org:pub:0E56C847-5694-4315-9A51-B4F207CA4F91

DOI

https://doi.org/10.5281/zenodo.6153555

persistent identifier

https://treatment.plazi.org/id/03D887BF-001A-2503-929B-108E775AF857

treatment provided by

Plazi

scientific name

Australocosmica rotunda
status

sp. nov.

Australocosmica rotunda View in CoL n. sp.

Figs 3 View FIGURE 3 F, 5E–F, 7B

Holotype. Australia, WA, Kimberley: Un-named island near the mouth of Sale River, Doubtful Bay, SW Kimberley, -15.959, 124.596 (coll. V. Kessner, R. Teale, 11 February 2010) (WAM S84061 View Materials ). Paratypes. Australia, WA, Kimberley: same data as for holotype, 23 wet (WAM S49237 View Materials ), 7 dry (WAM S49302 View Materials ); Sale River, ca. 5 Km E of Doubtful Bay, SW Kimberley, -15.988, 124.643 (coll. V. Kessner, R. Teale, 12 February 2010), 3 dry (WAM S 49303 View Materials ).

Etymology. In reference to the rounded shape of shell, derived from “ rotundus ” (Latin=rounded), adjective of feminine gender.

Description. Shell ( Figs 3 View FIGURE 3 F; 5E, F). Large, with moderately short spire and globose shape. Whorls with wellrounded periphery, weakly shouldered underneath suture. Axial ribs moderately pronounced. Colour light brown to brown. Genitalia ( Fig. 7 View FIGURE 7 B): Penis more than half as long as anterior part of oviduct (= vagina and free oviduct). Inner penial wall supporting irregular posterior folds and anteriorly three, wide longitudinal pilasters extending into atrium. Vagina almost as long as penis and about 1.5 times longer than free oviduct. Spermoviduct about 3.5 times longer than free oviduct and more than 1.5 times longer than albumen gland.

Remarks. Shell colour darker than in other congeners, often as dark A. augustae . On average shell larger than other congeners, but slightly smaller than A. augustae ; more elevated than other congeners except A. augustae and A. pallida ; with more whorls than A. augustae , A. bernoulliensis and A. pallida . Sculpture similar to A. nana , with fewer and more pronounced axial ribs than other congeners except A. crassicostata . Inner penial wall similar to that of A. crassicostata with more differentiated posterior longitudinal pilasters. This is Solem’s (1991) manuscript species ‘NSP 40’.

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