The height of the shell varies between 40 mm and 60 mm, its diameter between 40 mm and 55 mm. The imperforate, solid shell has a conical shape. It is marbled and maculated with green, brown and rose-color on a whitish ground. The 10–12 whorls are planulate, bearing vaulted or solid tubercles which project at the sutures and upon the periphery of the body whorl, where they number about 16. The whorls are covered with oblique small folds, so interrupted as to appear more or less in spiral series. The base of the shell is flat, white an yellowish, unicolored, all over concentrically lirate. The lirae are smooth, narrow, separated by shallow grooves as wide or wider than the ridges, and continuous within the aperture upon the parietal wall. The aperture is transverse. The outer wall is lirate within. The basal margin is straight, bearing, within, a strong acute revolving lamella, opposite to a similar but smaller one upon the parietal wall. The columella is short, with a very strong acute median spiral fold.
The above description applies to the typical form of this species, the prominent characters of which are the smooth, subequal basal lirae, closely wrinkled upper surface, with projecting peripheral tubercles, and strongly uni-lamellar basal and parietal walls of the aperture. W.H. Dall observed considerable variation in the sculpture of the aperture inside in the species of this group ; the lirae being sometimes completely absent in species which normally possess them.[2]
^Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Trochus mauritianus)
Drivas, J. & M. Jay (1988). Coquillages de La Réunion et de l'île Maurice
External linksedit
"Tectus (Tectus) mauritianus". Gastropods.com. Retrieved 16 January 2019.
Solem, George Alan (1953), Marine and fresh-water mollusks of the Solomon Islands
January 01, 1970
tectus, mauritianus, common, name, mauritius, shell, species, snail, marine, gastropod, mollusk, family, turbinidae, turban, snails, drawing, with, three, views, shell, scientific, classification, domain, eukaryota, kingdom, animalia, phylum, mollusca, class, . Tectus mauritianus common name the Mauritius top shell is a species of sea snail a marine gastropod mollusk in the family Turbinidae the turban snails 1 Tectus mauritianus Drawing with three views of a shell of Tectus mauritianus Scientific classification Domain Eukaryota Kingdom Animalia Phylum Mollusca Class Gastropoda Subclass Vetigastropoda Order Trochida Superfamily Trochoidea Family Tegulidae Genus Tectus Species T mauritianus Binomial name Tectus mauritianus Gmelin 1791 Synonyms 1 Tectus pagodalis Montfort P D de 1810 Tectus Tectus mauritianus Gmelin 1791 Trochus constifer Jonas 1846 Trochus mauritianus Gmelin 1790 Contents 1 Description 2 Distribution 3 References 4 External linksDescription editThe height of the shell varies between 40 mm and 60 mm its diameter between 40 mm and 55 mm The imperforate solid shell has a conical shape It is marbled and maculated with green brown and rose color on a whitish ground The 10 12 whorls are planulate bearing vaulted or solid tubercles which project at the sutures and upon the periphery of the body whorl where they number about 16 The whorls are covered with oblique small folds so interrupted as to appear more or less in spiral series The base of the shell is flat white an yellowish unicolored all over concentrically lirate The lirae are smooth narrow separated by shallow grooves as wide or wider than the ridges and continuous within the aperture upon the parietal wall The aperture is transverse The outer wall is lirate within The basal margin is straight bearing within a strong acute revolving lamella opposite to a similar but smaller one upon the parietal wall The columella is short with a very strong acute median spiral fold The above description applies to the typical form of this species the prominent characters of which are the smooth subequal basal lirae closely wrinkled upper surface with projecting peripheral tubercles and strongly uni lamellar basal and parietal walls of the aperture W H Dall observed considerable variation in the sculpture of the aperture inside in the species of this group the lirae being sometimes completely absent in species which normally possess them 2 Distribution editThis species occurs in the Indian Ocean and off Madagascar References edit a b Tectus mauritianus Gmelin 1791 Retrieved through World Register of Marine Species on 20 April 2010 Tryon 1889 Manual of Conchology XI Academy of Natural Sciences Philadelphia described as Trochus mauritianus Drivas J amp M Jay 1988 Coquillages de La Reunion et de l ile MauriceExternal links edit Tectus Tectus mauritianus Gastropods com Retrieved 16 January 2019 Solem George Alan 1953 Marine and fresh water mollusks of the Solomon Islands Retrieved from https en wikipedia org w index php title Tectus mauritianus amp oldid 1047650379, wikipedia, wiki, book, books, library,
