Laomarex sericea
| Laomarex sericea | |
|---|---|
| Holotype | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Punctidae |
| Subfamily: | Laominae |
| Genus: | Laomarex |
| Species: | L. sericea
|
| Binomial name | |
| Laomarex sericea A. W. B. Powell, 1948
| |
Laomarex sericea is a species of land snail belonging to the family Punctidae.[2] It is endemic to Manawatāwhi / Three Kings Islands, northwest of mainland New Zealand.
Description
In the original description, Powell described the species as below:
Shell small, depressed, broadly conical with angulate periphery and deep narrow umbilicus. Spire 1½ times height of aperture, outlines broadly convex. Whorls 6, including a low dome-shaped protoconch of 1½ whorls, distinctly sculptured with twelve dense beaded spirals and followed by a half-whorl of closely spaced radials. Post-nuclear sculpture of extremely dense and fine membranous radials, over 200 on the penultimate, overlying a surface sculpture of fine dense spiral threads. Dorsal surface and base similarly sculptured. Umbilicus a deep narrow pit. Colour dull brown, showing an obscure pattern of rather wide-spaced reddish-brown radial stripes.[3]
The shell of the holotype has a diameter of 3.25 mm (0.128 in), and a height of 2.00 mm (0.079 in).[3][4] Features not remarked upon by Powell include the punctine reproductive system, the radula formula, or the short bristles found at the intersection of the shell's radial and spiral sculpture, which were elaborated upon by Frank Climo in 1973.[5]
Taxonomy
The species was first described by A. W. B. Powell in 1948, who named L. sericea as the type species for the genus Laomarex.[3] The genus was monotypic until 1973.[5] The holotype was found on Oromaki / North East Island in leaf mould by G. A. Buddle in January 1948,[3] and is held by the Auckland War Memorial Museum.[6]
Distribution and habitat
L. sericea is endemic to Manawatāwhi / Three Kings Islands, known to occur on Manawatāwhi / Great Island, Oromaki / North East Island and Moekawa / South West Island.[7][5] The species has typically been found under stones and in leaf mould of forest remnants.[5]
Gallery
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Above view of holotype
-
Underside view of holotype
References
- ^ "Laomarex sericea Powell, 1948". New Zealand Threat Classification System. Retrieved 13 October 2025.
- ^ Laomarex A. W. B. Powell, 1948. Retrieved through: World Register of Marine Species on 9 October 2025.
- ^ a b c d Powell, A. W. B. (1948). "Land Mollusca of the Three Kings Islands". Records of the Auckland Institute and Museum. 3: 273–290. ISSN 0067-0464. JSTOR 42906016. Wikidata Q58676663.
- ^ Powell, A.W.B. (1979). New Zealand Mollusca: Marine, Land and Freshwater Shells. Auckland: Collins. p. 332. ISBN 0002169061.
- ^ a b c d Climo, F. M. (December 1973). "The systematics, Biology and Zoogeography of the land snail fauna of Great Island, Three Kings Group, New Zealand". Journal of the Royal Society of New Zealand. 3 (4): 565–627. doi:10.1080/03036758.1973.10421858. ISSN 0303-6758. Wikidata Q104026163.
- ^ Blom, Wilma M. (2025). "Annotated Catalogue of Fossil and Extant Molluscan Types in the Auckland War Memorial Museum". Bulletin of the Auckland Museum. 22. doi:10.32912/BULLETIN/22. ISSN 1176-3213. OCLC 1550165130. Wikidata Q135397912.
- ^ Brook, F. J. (2002). "Changes in the landsnail fauna of Great Island, Three Kings Islands, northern New Zealand". Journal of the Royal Society of New Zealand. 32 (1): 61–88. doi:10.1080/03014223.2002.9517684. ISSN 0303-6758. Wikidata Q129733487.
External links
- Laomarex sericea at mollusca.co.nz