Conondalia, Zhang, 2019

Zhang, - H., 2019, New taxa of Tateidae (Caenogastropoda, Truncatelloidea) from springs associated with the Great Artesian Basin and Einasleigh Uplands, Queensland, with the description of two related taxa from eastern coastal drainages, Zootaxa 4583 (1), pp. 1-67 : 51

Genus Conondalia n. gen.

Type species: Conondalia buzwilsoni n. sp.

Description. Shell small, conical, whorls convex, with growth lines only; peristome slightly to moderately thickened, umbilicate. Operculum thin, yellowish, subpyriform, paucispiral with last whorl large, nucleus acentric; inner surface with 1 or 2 protuberances representing rudimentary pegs near nucleus. Radula with central teeth with median cusp wider and longer than adjacent cusps; lateral margins wide; innermost of two basal cusps (third outer denticle sometimes present) short, broad; basal tongue narrow. Male with prostate bean-shaped, little less than half in pallial roof. Pallial vas deferens simple. Penis with distal half parallel-sided for most of length, distally tapered, lacking lobes or processes; glands absent.

Female with coiled oviduct with loop twisted posteriorly. Glandular oviduct rather narrow, ventral channel simple, genital opening subterminal, without associated cowl or gutter.

Distribution. Taxa referable to this genus are known from streams in SE Queensland in the block of country north of Brisbane and Toowoomba to Gympie.

Contained species. None previously described, one new species described below. Several additional undescribed species are known.

Etymology. Named for the town of Conondale, Queensland. Gender femine.

Remarks. This genus represents a small group of undescribed species found in the same general area in SE Queensland. The anatomy is similar to that of other taxa in the Jardinella group but differs from the other genera in the elongate, pyriform bursa which the bursal duct enters mid ventrally.

This genus, together with another new genus described below, probably represent the most plesiomorphic members of the Jardinella group, although their position on the Bayesian consensus tree (see molecular results below) do not support this idea.