Liracraea otakauica
| Liracraea otakauica | |
|---|---|
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| Holotype, collected in 110 metres, off Taiaroa Head, Otago, NZ (MA71011). © Auckland Museum (CC-BY) | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Conoidea |
| Family: | Mangeliidae |
| Genus: | Liracraea |
| Species: | L. otakauica
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| Binomial name | |
| Liracraea otakauica Powell, 1942
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Liracraea otakauica is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.[1]
There is one subspecies: Liracraea odhneri benthicola Dell, 1956
Description
Liracraea otakauica is a small marine gastropod mollusk characterized by a slender, elongate-conic shell. The shell reaches a length of approximately 7.8 mm and a diameter of about 2.7 mm.[2]
The sculpture of the shell includes numerous fine axial ribs intersected by spiral cords, producing a reticulate or cancellate surface pattern. The whorls are convex, with well-marked sutures. The aperture is narrow and elongate, with a distinct siphonal canal, and the outer lip is sharp and simple.
The protoconch is smooth, suggesting planktotrophic larval development. The shell is generally off-white or pale cream in color, which is typical for deep-sea mangeliid species. Internal anatomy and soft-body morphology remain poorly documented, as is common for many deep-water conoidean gastropods.
Distribution
This species is endemic to New Zealand occurs off Otago, within South-eastern South Island, Chatham Islands and Mernoo Bank, from 40-555m.
Some recorded Localities
Source:[3]
- 250-300 metres, Head of Waitaki Canyon, off Oamaru, NZ *98
- 530-590 metres, Head of Karitane Canyon, off Taiaroa Head, NZ *98
- 110 metres, off Taiaroa Head, NZ, (holotype)
- 550 metres, Taiaroa Canyon, off Taiaroa Head, NZ *98
- 105 metres, NE of Cape Saunders, off Otago Peninsula, NZ
- 220 metres, off Taiaroa Head, NZ *98
- 550-600 metres, Papanui Canyon, off Otago Peninsula, NZ
- 220-350 metres, Papanui Canyon, off Otago Peninsula, NZ
- 360 metres, Saunders Canyon, off Otago Peninsula, NZ
- 150 metres, off Taieri, S of Dunedin, NZ
- 140 metres, SE of Nugget Point, SSW of Dunedin, NZ
References
- ^ a b "WoRMS - World Register of Marine Species - Liracraea odhneri A. W. B. Powell, 1942". www.marinespecies.org. Retrieved 22 May 2024.
- ^ Powell, A.W.B. (1942). The New Zealand Recent and Fossil Mollusca of the Family Turridae. Vol. 2. Auckland Institute and Museum Bulletin. p. 149.
- ^ "NZ Mollusca - Liracraea otakauica". www.mollusca.co.nz. Retrieved 10 June 2025.
External links
- Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1–1295.
- Powell, A.W.B. 1942 The New Zealand Recent and fossil Mollusca of the family Turridae with general notes on turrid nomenclature and systematics, Auckland Institute and Museum Bulletin, 2 (p.149) (first original description)
- Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland
- Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. pp. 196–219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.