Megastomia
Megastomia is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Taxonomy
Over fifty species worldwide have been placed in genus Megastomia Monterosato, 1884 by a number of authors. On the basis of 16s mtDNA sequence data, Schander et al. distinguished, and placed in Megastomia, two species and M. corimbensis ), which clustered separately from other species placed in Odostomia Fleming, 1813. However Høisæter correctly pointed out that the type species Odostomia conspicua Alder, 1850 "is a typical Odostomia s.s. and has few traits in common with O. conoidea".Considering the large number of species involved, and considering that for most of these species Odostomia is probably not more appropriate, the published combinations with Megastomia are nevertheless retained by the database WoRMS as "accepted" until more data become available.
Species
Species within the genus Megastomia include:Megastomia adiposa Megastomia adolphi Megastomia algoensis Megastomia aliter Penas & Rolan, 1999Megastomia alungata Megastomia ampliata Megastomia atrisaxi Megastomia bedoti Megastomia binhdinhensis Megastomia boteroi Megastomia broti Megastomia canaria Megastomia canina Penas & Rolan, 1999Megastomia caudana Megastomia charneri Megastomia clara Megastomia conoidea Megastomia conspicua Megastomia corimbensis Schander, 1994Megastomia coseli Penas & Rolan, 1999Megastomia desmiti- † Megastomia doliella Megastomia gea Megastomia gestroi Megastomia gestroides Megastomia gilsoni Megastomia gordonis Megastomia gutta Penas & Rolan, 1999Megastomia interolineata Megastomia jacundior
- † Megastomia kaawa Megastomia kamakurana Megastomia kuroshiwo Megastomia makiyamai
- † Megastomia marginalis Megastomia martinae Megastomia metayei Megastomia miuraensis Megastomia neoexigua Megastomia nhatrangensis Megastomia pagodiformis Megastomia palmaensis Penas & Rolan, 1999Megastomia pernettae Megastomia pseudoperforata Megastomia pyramidata Megastomia regina Megastomia ruris Penas & Rolan, 1999Megastomia sagamiana Megastomia saurini Megastomia serenei
- † Megastomia simemacula Megastomia simplex Megastomia sitirighamana Megastomia subcarina Megastomia subcostata Megastomia subscripta Megastomia sulcifera Megastomia supramarginata Megastomia tenera Megastomia troncosoi Peñas & Rolán, 2002Megastomia turbiniformis Penas & Rolan, 1999Megastomia turukoae Nomura, 1938Megastomia unifilosa
- † Megastomia venusta Megastomia vero Megastomia winfriedi Penas & Rolan, 1999Megastomia yabehisakatsui Megastomia yukikoae Megastomia zaleuca Megastomia zijpi