Nanotrachia, 2013

Köhler, Frank & Criscione, Francesco, 2013, Small snails in a big place: a radiation in the semi-arid rangelands in northern Australia (Eupulmonata, Camaenidae, Nanotrachia gen. nov.), Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) 169 (1), pp. 103-123 : 121

NANOTRACHIA COSTULATA MONTEJINNI SSP. NOV.

Holotype

Australia, NT, VRD, 30.7 km south-west of Montejinni Station Homestead , Montejinni Station, large limestone formations, karst, cliffs of 6–8 m in height, vine thicket patches. In deep talus, free sealer, 16°52′16″S, 131°34′11″E (V. Kessner, M. Braby, T. Parkin, 29 July 2010); dissected specimen ( NTM P48939).

Paratypes

Same as holotype; 29 dry, eight wet ( AM C.470214)

Other material: Table 1.

Etymology

For the type locality, Montejinni Station, noun by apposition.

Description

As nominate form, but with longer, wider epiphallus; inner penial wall with two thick, winding, irregularly shaped longitudinal pilasters ( Fig. 7C, D ).

Comparative remarks

Differs from nominate form by shape, number, and development of penial wall pilasters.

Figures

Figure 7. Intraspecific variation of penial anatomy in N. costulata sp. nov. A, Nanotrachia c. costulata (holotype WAM S66302); B, Nanotrachia c. costulata (WAM S49174); C, Nanotrachia c. montejinni ssp. nov. (holotype NTM P48939); D, Nanotrachia c. montejinni (AM C.437659). Insets showing schematic cross section of midpenis. Scale bar = 2 mm.