Innesoconcha catletti, (BRAZIER, 1872)

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 : 50-53

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.7499194
persistent identifier	https://treatment.plazi.org/id/A24B0931-983E-FFC4-FCCC-F9E1FD950A61
treatment provided by	Plazi
scientific name	Innesoconcha catletti
status

Treatment

INNESOCONCHA CATLETTI ( BRAZIER, 1872) View in CoL

( FIGS 5A, B View Figure 5 , 6A View Figure 6 , 7–9 View Figure 7 View Figure 8 View Figure 9 , 10A–F View Figure 10 , 11 View Figure 11 ; TABLE 1 View Table 1 )

Helix (Microcystis) catletti Brazier, 1872: 617 .

Nanina (Microcystis) catletti: Pfeiffer, 1878 (in 1878–1881): 35.

Microcystis catletti var. major Hedley, 1891: 137 View in CoL .

Innesoconcha catletti subconica Iredale, 1944: 326 [nom. nov. for Microcystis catletti var. major Hedley, 1891 View in CoL ].

Innesoconcha catletti Iredale, 1944: 326 View in CoL ; Smith, 1992: 234–235; Hyman & Köhler, 2020: 101.

Type material: Syntypes, AM C.101187 ( Fig. 5A View Figure 5 ), AM C.63671 , AM C.101064; Lord Howe Island , May 1869, G. Masters. Innesoconcha catletti major syntypes [ AM C.101188 ( Fig. 5B View Figure 5 ), AM C.101054], Old Settlement (31°31.16′S, 159°3.24′E), August 1887, Australian Museum party GoogleMaps .

Material examined: See Table 1 View Table 1 .

Description

External morphology: Shell ( Fig. 5A, B View Figure 5 ) medium-sized ( SW 8.1–11.8 mm, SH 4.0– 6.8 mm), 5.0–6.1 whorls, glossy, pale golden brown, depressed trochoidal, spire and apex slightly raised. Protoconch sculptured with incised spiral grooves; teleoconch smooth. Whorl profile rounded above and below a slightly angulate periphery. Animal ( Fig. 6A View Figure 6 ) cream. Right and left shell lappets narrow, finger-shaped. Caudal horn moderately small.

ReproductiƲe system ( Figs 7–9 View Figure 7 View Figure 8 View Figure 9 ): Oviduct with nought to seven eggs, nought to fourteen embryos. Penis long, coiled multiple times in tunica; epiphallus enters penis through a simple pore; penis internally flat, two longitudinal penis pilasters apically and one to three pilasters present basally. Penial tunica enclosing coiled penis and epiphallus; penis retractor muscle attached to epiphallus. Epiphallus much shorter than penis, internally with longitudinal pilasters. Spermatophore short, soft-walled, smooth, peanut-shaped tube, closed at both ends.

Radula ( Fig. 10A–F View Figure 10 ): Central and lateral tooth mesocones approximately equal in length to tooth base. Marginal tooth ectocones approximately the same length and breadth as mesocone; multicuspidate. Radular formula (62.8.1.8.62) × 150 ( AM C.399376), (69.9.1.9.69) × ~115 ( AM C.389125).