Australocosmica crassicostata
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Ordo: Stylommatophora
Familia: Camaenidae
Genus: Australocosmica
Name
Australocosmica crassicostata Criscione, Francesco, 2013 – Wikispecies link – Pensoft Profile
- Australocosmica crassicostata Criscione, Francesco, 2013, Zootaxa 3608: 108-108.
Materials Examined
Holotype. Australia, WA, Kimberley, Bonaparte Archipelago: Sta. KC-047, unnamed island between Maret and Berthier Is., - 14.481, 125.004 (coll. V. Kessner, A. Longbottom, 15 July 1988) (WAM S 84059). Paratypes. Australia, WA, Kimberley, Bonaparte Archipelago: same data as for holotype, 2 wet (WAM S 83036), 4 wet (FMNH 219201), 8 dry (WAM S 83035), 9 dry (FMNH 219200); Sta. KC-044, Berthier Island, SW corner island, - 14.513, 124.981 (coll. V. Kessner, A. Longbottom, 14 July 1988), 1 dry (WAM S 83030), 1 dry (FMNH 219173); Sta. KC-045, North Maret Island, - 14.399, 124.973 (coll. V. Kessner, A. Longbottom, 15 July 1988), 32 dry (WAM S 83031), 31 dry (FMNH 219180); Sta. KC-045, North Maret Island, - 14.399, 124.973 (coll. V. Kessner, A. Longbottom, 15 July 1988), 53 wet (WAM S 83032), 52 wet (FMNH 219181); Sta. KC-046, South Maret Island, - 14.441, 124.977 (coll. V. Kessner, A. Longbottom, 15 July 1988), 4 dry (WAM S 83033), 4 dry (FMNH 219193); Sta. KC-046, South Maret Island, - 14.441, 124.977 (coll. V. Kessner, A. Longbottom, 15 July 1988), 2 wet (WAM S 83034), 1 wet (FMNH 219194); Sta. KC-048, N end of Berthier Island, - 14.503, 124.986 (coll. V. Kessner, A. Longbottom, 15 July 1988), 1 dry (WAM S 83037), 1 dry (FMNH 219207).
Etymology
Etymology. In reference to the shell sculpture, derived from “ crassus ” (Latin = thick, pronounced) and “ costatus ” (Latin = ribbed), adjective of feminine gender.
Description
Description. Shell (Figs. 3 C; 4 D, E). Diameter average, spire elevated and broadly conical shape. Whorls with slightly angulate periphery, moderately shouldered underneath suture. Axial ribs strong. Colour horn to light brown. Genitalia (Fig. 6 C). Penis about half as long as anterior part of oviduct (= vagina and free oviduct). Inner penial wall supporting complex sculpture, posteriorly with series of corrugated folds and diverticula, anteriorly with longitudinal folds extending into atrium. Vaginal length about three quarters of length of penis and free oviduct. Spermoviduct about 2.5 times longer than free oviduct and about twice as long as albumen gland.
Discussion
Remarks: Shell colour as variable as in A. nana. On average shell smaller than A. augustae, A. rotunda and A. sanctumpatriciusae, larger than other congeners; more elevated and with more whorls than other congeners except A. augustae and A. pallida. Sculpture with fewer but more pronounced axial ribs than any other congener. Inner penial wall similar to that of A. rotunda with weaker posterior longitudinal pilasters.This is Solem’s (1991) manuscript species ‘NSP 79 ’. The distribution of A. crassicostata is not included in Köhler’s (2011: Fig. 1) map having it mixed-up with ‘NSP 78 ’ (= A. bernoulliensis) (see above).
Taxon Treatment
- Criscione, Francesco; Köhler, Frank; 2013: Six new species of Australocosmica Köhler, 2011 from the Kimberley islands, Western Australia (Mollusca: Pulmonata: Camaenidae), Zootaxa 3608: 108-108. doi
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