Innesoconcha catletti
Creators: name: Hyman, Isabel T.
name: Caiza, Jennifer
name: Köhler, Frank
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Euconulidae
Innesoconcha
Innesoconcha catletti

description: <i>INNESOCONCHA CATLETTI</i> (BRAZIER, 1872) (FIGS 5A, B, 6A, 7–9, 10A–F, 11; TABLE 1) <i>Helix</i> (<i>Microcystis</i>) <i>catletti</i> Brazier, 1872: 617. <i>Nanina</i> (<i>Microcystis</i>) <i>catletti</i>: Pfeiffer, 1878 (in 1878–1881): 35. <i>Microcystis catletti</i> var. <i>major</i> Hedley, 1891: 137. <i>Innesoconcha catletti subconica</i> Iredale, 1944: 326 [nom. nov. for <i>Microcystis catletti</i> var. <i>major</i> Hedley, 1891]. <i>Innesoconcha catletti</i> Iredale, 1944: 326; Smith, 1992: 234–235; Hyman &amp; Köhler, 2020: 101. <i>Type material:</i> Syntypes, AM C.101187 (Fig. 5A), AM C.63671, AM C.101064; Lord Howe Island, May 1869, G. Masters. <i>Innesoconcha catletti major</i> syntypes [AM C.101188 (Fig. 5B), AM C.101054], Old Settlement (31°31.16′S, 159°3.24′E), August 1887, Australian Museum party. <i>Material examined:</i> See Table 1. <i>Description</i> <i>External morphology:</i> Shell (Fig. 5A, B) 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) cream. Right and left shell lappets narrow, finger-shaped. Caudal horn moderately small. <i>ReproductiƲe system (Figs 7–9):</i> 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. <i>Radula (Fig. 10A–F):</i> 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).
description: Published as part of <i>Hyman, Isabel T., Caiza, Jennifer &amp; Köhler, Frank, 2023, Dissecting an island radiation: systematic revision of endemic land snails on Lord Howe Island (Gastropoda: Stylommatophora: Microcystidae), pp. 20-75 in Zoological Journal of the Linnean Society 197 (1)</i> on pages 50-53, DOI: 10.1093/zoolinnean/zlac075, http://zenodo.org/record/7499138
description: {"references": ["Brazier J. 1872. Descriptions of six new species of land shells from Australia and Lord Howe's Island. Proceedings of the Zoological Society of London 1872: 617 - 619.", "Pfeiffer L. 1878 - 1881. Nomenclator heliceorum ViVentium qui continentur nomina omnium hujus familiae et generum et specierum hodie cognitarum disposita ex affinitate naturali. [Posthumous work, ed. S. Clessin.] Kassel: Theodor Fischer.", "Hedley C. 1891. The land and freshwater shells of Lord Howe Island. Records of the Australian Museum 1: 134 - 144.", "Iredale T. 1944. The land Mollusca of Lord Howe Island. Australian Zoologist 10: 299 - 334.", "Smith BJ. 1992. Non-marine Mollusca. In: Houston WWK, ed. Zoological catalogue of Australia, Vol. 8. Canberra: Australian Government Publishing Service, 1 - 408.", "Hyman IT, Kohler F. 2020. A field guide to the land snails of Lord Hoaee Island. Sydney: Australian Museum Scientific Publishing."]}