Innesoconcha catletti
Authors/Creators
Description
(FIGS 5A, B, 6A, 7–9, 10A–F, 11; TABLE 1)
Helix (Microcystis) catletti Brazier, 1872: 617.
Nanina (Microcystis) catletti: Pfeiffer, 1878 (in 1878–1881): 35.
Microcystis catletti var. major Hedley, 1891: 137.
Innesoconcha catletti subconica Iredale, 1944: 326 [nom. nov. for Microcystis catletti var. major Hedley, 1891].
Innesoconcha catletti Iredale, 1944: 326; Smith, 1992: 234–235; Hyman & Köhler, 2020: 101.
Type material: Syntypes, AM C.101187 (Fig. 5A), AM C.63671, AM C.101064; Lord Howe Island, May 1869, G. Masters. Innesoconcha catletti major syntypes [AM C.101188 (Fig. 5B), AM C.101054], Old Settlement (31°31.16′S, 159°3.24′E), August 1887, Australian Museum party.
Material examined: See Table 1.
Description
External morphology: 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.
ReproductiƲe system (Figs 7–9): 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): 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).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- AM
- Scientific name authorship
- Brazier
- Kingdom
- Animalia
- Phylum
- Mollusca
- Order
- Stylommatophora
- Family
- Euconulidae
- Genus
- Innesoconcha
- Species
- catletti
- Taxon rank
- species
- Type status
- syntype
- Taxonomic concept label
- Innesoconcha catletti (Brazier, 1872) sec. Hyman, Caiza & Köhler, 2023
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.