''Turbo laminiferus'', common name the crinkly turban, is a
species of
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
, marine
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk in the
family Turbinidae.
Some authors place the name in the subgenus ''Turbo (Marmarostoma)''
Description
The length of the shell varies between 20 mm and 50 mm.
The solid, umbilicate shell has a pointed-ovate shape. Its color pattern is greenish, longitudinally flammulated with black. The conic
spire is pointed. The six
whorl
A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs).
Whorls in nature
File:Photograph and axial plane floral ...
s are very convex, separated by canaliculate
sutures. The
body whorl
The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk.
In gastropods
In gastropods, the b ...
has about nine rather separated
lira
Lira is the name of several currency units. It is the current currency of Turkey and also the local name of the currencies of Lebanon and of Syria. It is also the name of several former currencies, including those of Italy, Malta and Israe ...
e, the whole surface covered with crowded elevated sibfoliaceus radiating lamellae. The round
aperture measures half the length of the shell or less. The
peristome is usually nearly free from body whorl above. The
columella is excavated at the deep and prominent
umbilicus.
The
operculum has a subcentral nucleus. Its outer surface is green, granulate, wrinkled on its outer margin, with a radial sulcus marking the limit of the margin of increment.
G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia
(described as ''Turbo foliaceus'')
Distribution
This marine species occurs from Western Australia to Queensland, Australia; and off Papua New Guinea
References
* Iredale, T., 1914. ''Report on Mollusca collected at the Monte Bello Islands''. Proc. Zool. Soc. Lond., 1914:665-675
* Cernohorsky, W.O., 1978. ''Tropical Pacific marine shells''. Pacific Publications, Sydney. 1–352, 68 pls
* Wilson, B., 1993. ''Australian Marine Shells''. Prosobranch Gastropods.. Odyssey Publishing, Kallaroo, WA
* Alf A. & Kreipl K. (2003). ''A Conchological Iconography: The Family Turbinidae, Subfamily Turbininae, Genus Turbo''. Conchbooks, Hackenheim Germany.
* Williams, S.T. (2007). ''Origins and diversification of Indo-West Pacific marine fauna: evolutionary history and biogeography of turban shells (Gastropoda, Turbinidae).'' Biological Journal of the Linnean Society, 2007, 92, 573–592
External links
Gastropods.com: ''Turbo (Marmarostoma) squamosus''
{{Taxonbar, from=Q61694228
laminiferus
Gastropods described in 1848