Rhagada setzeri atauroensis, Köhler, 2014

Köhler, Frank, 2014, On the land snail Rhagada Albers, 1860 (Gastropoda: Camaenidae) from across the Lesser Sunda Islands, Raffles Bulletin of Zoology 62, pp. 115-123 : 120

publication ID

https://doi.org/ 10.5281/zenodo.4502132

publication LSID

lsid:zoobank.org:pub:4D5F3585-04B2-45AA-BA00-8795AEF68A83

DOI

https://doi.org/10.5281/zenodo.4774208

persistent identifier

https://treatment.plazi.org/id/03F3175F-EF6A-5E40-FF01-3DB6FC13FCEA

treatment provided by

Carolina

scientific name

Rhagada setzeri atauroensis
status

subsp. nov.

Rhagada setzeri atauroensis View in CoL n. subsp.

( Figs. 1C, D View Fig , 2C View Fig )

Type locality. Timor-Leste, Atauro Island , 2.6 km NW of Beloi, 8° 12' 08.3" S, 125° 35' 31.9" E GoogleMaps .

Holotype. AM C.478282 (dissected specimen, wet, shell destroyed).

Paratypes. AM C.468712 (type locality, 23 wet), AM C.468711 (near Makadade , 8° 12' 42.3" S, 125° 34' 54.9" E, 20 wet, 5 dry) GoogleMaps , AM C.468709 (northern tip of Atauro , 8° 07' 56.3" S, 125° 37' 59.4" E, 7 wet, 8 dry) GoogleMaps , AM C.470222 (2.6 km NNW of Beloi , 8° 12' 30.3" S, 125° 36' 19.9" E, 4 dry) GoogleMaps .

Etymology. Named for Atauro Island.

Description. Shell moderate in size (D = 13–19 mm; Table 1 View Table 1 ), with faint to well-developed axial ribs, umbilicus forming a chink or narrowly open. Penial verge with circular folds, penial wall with weakly developed longitudinal pilasters, epiphallus with short flagellum ( Fig. 2C View Fig ).

Comparative remarks. Differs from the nominate form by smaller shell, weaker ribs, more vivid colouration, not completely closed umbilicus. Both island forms are separated by comparatively low genetic distances of about 4% in COI and 2% in 16S ( Table 2 View Table 2 ). Because low genetic differentiation might indicate incomplete reproductive isolation, the Atauro Island populations are described as a subspecies of R. setzeri rather than being recognised as a full species. Rhagada setzeri is well-differentiated from R. solorensis and R. abbasi n. sp. by means of genetic distances of 12–16% in COI and 8–9% in 16S.

AM

Australian Museum

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Stylommatophora

Family

Camaenidae

Genus

Rhagada

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF