Micrelenchus sanguineus bakeri C. A. Fleming, 1948
Descriptionedit
The height of the shell attains 3.5 mm, its diameter 4 mm. The very small shell is subperforate or imperforate. It has a conical shape. It is slightly iridescent and shining. The sculpture consists of fine spiral lirae, about 15 on the penultimate whorl. The growth lines are inconspicuous. It has a light yellow colour with radiate oblique broad streaks of dark brown. The intervals are filled with a few light brown dots. The base of the shell is tessellated with yellowish and brown. The epidermis is very thin, the pearly inner layer shining partly through it.
The spire is conic with its height greater than that of the aperture. The sides are very slightly convex. The protoconch is small, acute, and consists of two convex, light-brown, and finely spirally striate whorls. The six whorls are flatly convex. The body whorl is keeled at the periphery. The base of the shell is convex. The sutures are very little impressed. The slightly oblique aperture is subquadrangular. The interior is silvery and finely lirate. The outer and basal lip are sharp, angled where they meet, margined with a white bead. The columella is subvertical, slightly arched, with a slight swelling in the middle. The umbilicus is partly or completely covered by the columella expansion. The white umbilical tract is slightly impressed.[2]
^Suter H. (1913-1915), Manual of New Zealand Mollusca; Wellington, N. Z. :J. Mackay, govt. printer,1913-1915 (described as Gibbula micans)
Adams, A. 1853. Contributions towards a monograph of the Trochidae, a family of gasteropodous Mollusca. Proceedings of the Zoological Society of London 19 1851: 150-192.
Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells. Collins, Auckland 500p
Marshall B.A. 1998. The New Zealand Recent species of Cantharidus Montfort, 1810 and Micrelenchus Finlay, 1926 (Mollusca: Gastropoda: Trochidae). Molluscan Research 19(1): 107-156
April 12, 2024
roseaplagis, artizona, species, snail, family, trochidae, snails, scientific, classificationdomain, eukaryotakingdom, animaliaphylum, molluscaclass, gastropodasubclass, vetigastropodaorder, trochidasuperfamily, trochoideafamily, trochidaesubfamily, cantharidin. Roseaplagis artizona is a species of sea snail in the family Trochidae the top snails 1 Roseaplagis artizonaScientific classificationDomain EukaryotaKingdom AnimaliaPhylum MolluscaClass GastropodaSubclass VetigastropodaOrder TrochidaSuperfamily TrochoideaFamily TrochidaeSubfamily CantharidinaeGenus RoseaplagisSpecies R artizonaBinomial nameRoseaplagis artizona A Adams 1853 Synonyms 1 Cantharidus artizona A Adams 1853 original combination Cantharidus sanguineus bakeri C A Fleming 1948 Cantharidus caelatus elongatus Suter 1897 Cantharidus sanguineus bakeri Fleming 1948 Cantharidus sanguineus var elongata Suter 1897 Gibbula micans Suter 1897 Micrelenchus Plumbelenchus artizona A Adams 1853 Micrelenchus artizona A Adams 1853 Micrelenchus sanguineus bakeri C A Fleming 1948Description editThe height of the shell attains 3 5 mm its diameter 4 mm The very small shell is subperforate or imperforate It has a conical shape It is slightly iridescent and shining The sculpture consists of fine spiral lirae about 15 on the penultimate whorl The growth lines are inconspicuous It has a light yellow colour with radiate oblique broad streaks of dark brown The intervals are filled with a few light brown dots The base of the shell is tessellated with yellowish and brown The epidermis is very thin the pearly inner layer shining partly through it The spire is conic with its height greater than that of the aperture The sides are very slightly convex The protoconch is small acute and consists of two convex light brown and finely spirally striate whorls The six whorls are flatly convex The body whorl is keeled at the periphery The base of the shell is convex The sutures are very little impressed The slightly oblique aperture is subquadrangular The interior is silvery and finely lirate The outer and basal lip are sharp angled where they meet margined with a white bead The columella is subvertical slightly arched with a slight swelling in the middle The umbilicus is partly or completely covered by the columella expansion The white umbilical tract is slightly impressed 2 Distribution editThis marine species is endemic to New Zealand References edit a b MolluscaBase eds 2020 MolluscaBase Roseaplagis artizona A Adams 1853 Accessed through World Register of Marine Species at http www marinespecies org aphia php p taxdetails amp id 876697 on 2020 07 25 Suter H 1913 1915 Manual of New Zealand Mollusca Wellington N Z J Mackay govt printer 1913 1915 described as Gibbula micans Adams A 1853 Contributions towards a monograph of the Trochidae a family of gasteropodous Mollusca Proceedings of the Zoological Society of London 19 1851 150 192 Powell A W B 1979 New Zealand Mollusca Marine Land and Freshwater Shells Collins Auckland 500p Marshall B A 1998 The New Zealand Recent species of Cantharidus Montfort 1810 and Micrelenchus Finlay 1926 Mollusca Gastropoda Trochidae Molluscan Research 19 1 107 156 Retrieved from https en wikipedia org w index php title Roseaplagis artizona amp oldid 1010256357, wikipedia, wiki, book, books, library,
