Rissooidea

Rissooidea
Two views of a shell of Rissoa membranacea
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha
Superfamily:	Rissooidea
Families
See text
Synonyms[1]
Rissoacea (suffix -oidea mandatory for a superfamily name following current ICZN art. 29.2.) Rissoidea (misspelling)

Rissooidea, originally named Rissoacea by Gray, 1847, is a taxonomic superfamily of small and minute marine snails, belonging to the clade Littorinimorpha. ^[1]

With their phylogenetic analysis of rissooidean and cingulopsoidean families, Criscione F. & Ponder W.F. (2013) have created the superfamily Truncatelloidea containing many families previously included in the superfamily Rissooidea. They have shown that Rissooidea was not monophyletic, encompassing two major clades, i.e. Risooidea s.s. and Truncatelloidea. The freshwater, brackish water, and semi-terrestrial families and genera were brought under Truncatelloidea. ^[2]

Families

Families within the superfamily Rissooidea include:

• Anabathronidae Coan, 1964
• † Avardaria Ali-Zade, 1932
• Barleeiidae Gray, 1857
• † Choerina Brusina, 1882
• Coxielladda Iredale and Whiteley, 1938
• † Ctyrokya Schlickum, 1965
• Emblandidae Ponder, 1985
• † Fossarulus Neumayr, 1869
• Gabbia Tryon, 1865
• Rissoidae Gray, 1847
• Rissoinidae Stimpson, 1865

Genera unassigned to a family

• † Schuettemmericia Schlickum, 1961
• † Staadtiellopsis Schlickum, 1968
• † Zilchiola Kadolsky, 1993

Family names brought into synonymy

• Ansolidae Slavoshevskaya, 1975: synonym of Barleeiidae Gray, 1857
• Barleeidae Gray, 1857: synonym of Barleeiidae Gray, 1857
• Rissoidea: misspelling of Rissooidea

Nomenclature

This superfamily was previously known as Rissoacea. Prior to the recent ruling by the ICZN, many invertebrate superfamily names ended in the suffix -acea, or -aceae, not -oidea as now required according the ICZN article 29.2. The suffix -oidea used to be used for some subclasses and superorders, where it is stll found. In much of the older literature including Keen 1958, Moore et al. 1952, and the Treatise on Invertebrate Paleontology, gastropod superfamilies are written with the suffix -acea.^[3][4][5]

References