Innesoconcha segna, IREDALE, 1944

Hyman, Isabel T., Caiza, Jennifer & Köhler, Frank, 2023, Dissecting an island radiation: systematic revision of endemic land snails on Lord Howe Island (Gastropoda: Stylommatophora: Microcystidae), Zoological Journal of the Linnean Society 197 (1), pp. 20-75 : 71

publication ID	https://doi.org/ 10.1093/zoolinnean/zlac075
publication LSID	lsid:zoobank.org:pub:613C3FA2-CDF7-4BED-B852-340C3DE724F9
DOI	https://doi.org/10.5281/zenodo.7499178
persistent identifier	https://treatment.plazi.org/id/A24B0931-9813-FFD6-FF5A-FA0CFB230BE9
treatment provided by	Plazi
scientific name	Innesoconcha segna
status

Treatment

INNESOCONCHA SEGNA IREDALE, 1944 View in CoL

( FIGS 5M View Figure 5 , 11 View Figure 11 , 27 View Figure 27 ; TABLE 1 View Table 1 )

Innesoconcha segna Iredale, 1944: 326 View in CoL ; Hyman & Köhler, 2020: 103.

Type material: Holotype, AM C.114789 ( Fig. 5M View Figure 5 ), Boat Harbour (31°33.67′S, 159°5.85′E), 1912, R.Bell. GoogleMaps

Material examined: See Table 1 View Table 1 .

Description

External morphology: Shell ( Fig. 5M View Figure 5 ) medium-sized ( SW 10.7–12.0 mm, SH 5.9–7.2 mm), 5.7–6.1 whorls, glossy, pale yellow-gold, depressed trochoidal with a low spire. Whorls rounded above and below a rounded periphery; sutures slightly impressed. Columella thickened to form a small tooth. Body colour (in alcohol) light orangebrown. Right shell lappet moderately long, narrow, fingershaped; left shell lappet short, narrow, finger-shaped.

ReproductiƲe system ( Fig. 27 View Figure 27 ): Oviduct with four eggs, one embryo. Penis moderately long, coiled approximately twice in penial tunica; epiphallus enters penis through simple pore; penis internally with small transverse ridges, two longitudinal penis pilasters present. Penial tunica enclosing coiled penis and epiphallus. Epiphallus shorter than penis. Spermatophore short, soft-walled, smooth, peanutshaped tube, closed at both ends.