Odostomellini

{{Short description|Tribe of gastropods}} {{Automatic Taxobox | image = Odostomella doliolum 001.jpg | image_caption = ''Odostomella doliolum'' | taxon = Odostomellini | authority = Saurin, 1958<ref>{{cite journal | author = Saurin, E. | year = 1958 | title = Pyramidellidae de Pho-Hai (Sud Viet-Nam) | journal = Annales de la Faculté des Sciences de Saigon | volume =35 | issue = | pages = 63–86 | issn = | doi = }}</ref> | subdivision_ranks = Genera | subdivision = See text. | synonyms = Odostomellinae }}

'''Odostomellini''' is a taxonomic tribe of minute sea snails, marine gastropod molluscs within the family Pyramidellidae the pyrams and their allies.

== Taxonomy == '''Odostomellinae''' has been one of eleven recognised subfamilies of the family Pyramidellidae (according to the taxonomy of Ponder & Lindberg, 1997).<ref>{{cite journal |author1=Ponder, W.F. |author2=Lindberg, D. R. |name-list-style=amp | year = 1997 | title = Towards a phylogeny of gastropod molluscs: an analysis using morphological characters | journal = Zoological Journal of the Linnean Society | volume =119 | issue = 2 | pages = 88–265 | issn = | doi =10.1111/j.1096-3642.1997.tb00137.x | doi-access =free }}</ref> The subfamily contains two genera: ''Herviera'' and ''Odostomella'' (Schander and co-workers 1999).<ref name="Schander 1999 Families">{{cite journal | author = Schander C. | author-link = Christoffer Schander | author2 = van Aartsen, J. J. | author3 = Corgan, J. C. | date = 1999 | title = Families and genera of the Pyramidelloidea (Mollusca: Gastropoda) | journal = Bollettino Malacologico | volume =34 | issue = 9–12 | pages = 145–166 | issn = | doi = }}</ref>

In the taxonomy of Bouchet & Rocroi (2005),<ref name="Bouchet 2005">{{Bouchet 2005}}</ref> this subfamily has been downgraded to the rank of tribe Odostomellini in the subfamily Odostomiinae.

==Genera == Genera within the tribe Odostomellini include: * ''Odostomella'' Bucquoy, Dautzenberg & Dollfus, 1883<ref name="Schander 1999 Families"/> - type genus of the tribe Odostomellini<ref name="Bouchet 2005"/> * ''Heviera'' Melvill & Standen, 1899<ref name="Schander 1999 Families"/>

==Distribution== The subfamily occurs in tropic and temperate seas.

==Shell description== The shell of these snails has a blunt, heterostrophic protoconch, which is wrapped up. The texture of these shells is sculptured with ribs. Their color is mostly white, brown, cream or yellowish, sometimes with red or brown lines. The teleoconch is dextrally coiled, but the larval shells are sinistral. This results in a sinistrally coiled protoconch. The aperture is closed by an operculum.

==Life habits== The Odostomellinae are ectoparasites, but the hosts are unknown.

They do not have a radula. Instead their long proboscis is used to pierce the skin of its prey and suck up its fluids and soft tissues. The eyes on the grooved tentacles are situated toward the base of the tentacles. Between the head and the foot, a lobed process called the mentum (= thin projection) is visible.

These molluscs are hermaphrodites, laying eggs in jelly-like masses on the shell of its host. Some species have spermatophores (Schander, Hori & Lundberg, 1999).<ref>{{cite journal | author = Schander C. | author-link = Christoffer Schander | author2 = Hori S. | author3 = Lundberg J. | name-list-style = amp | date = 1999 | title = Anatomy, Phylogeny and biology of ''Odostomella'' and ''Herviera'', with the description of a new species of ''Odostomella'' (Mollusca, Heterostropha, Pyramidellidae) | journal = Ophelia | volume =51 | issue = 1 | pages = 39–76 | issn = | doi =10.1080/00785326.1999.10409399 }}</ref>

==References== {{Reflist}}

Category:Pyramidellidae