Cystiscidae

 

CYSTISCIDAE
Scientific classification
Kingdom: Animalia Phylum: Mollusca Class: Gastropoda Subclass: Orthogastropoda Superorder: Caenogastropoda Order: Sorbeoconcha Suborder: Hypsogastropoda Infraorder: Neogastropoda Family: Cystiscidae Stimpson, 1865
Subfamilies and Genera
See text.

CYSTISCIDAE was erected by Stimpson for a single included species based on unusual features of the head and radula. Subsequente authors included this group in family Marginellidae. Coan (1965:186) recognized this group as a subfamily, but did not include such genera as Gibberula, Persicula, and Canalispira. Rule of priority require this name to be used, which is unfortunate because the type specimen of the type species is lost and the species is poorly know.

Diagnosis

Shell minute to large, white, uniformly collered, or patterned; surface smooth, sculptured, or axially costate; spire flat to immersed, or low to tall; protoconch paucispiral; lip thickned, smooth or denticulate; external varix present or absent; siphonal notch present or absent; posterior notch present or absent; columella multiplicate, internal whorls cystiscid or modified cystiscid type. Mantle cavity with monopectinate ctenidium and bipectinate osphradium. Proboscis pleurembolic; jaws absent; typical radular sac present.

Systematics

Abbreviations and conventions

• † - (preceding genus), denotes extinct genus
• † - (following species), denotes fossil species
• (M) - original designation by monotype
• OD - original designation
• OD (M) - original designation as type species, but also monotypic
• SD - subsequent designation as type
• SD (M) - subsequent designation as type species, but also monotypic
• T - original designation by tautonomy

In the systematic, the following sequence is used for each generic synonym:

• Genus in original combination, followed by author, year, page number(s)
• Designation of type species followed by author, year, page number(s)
• Reference only to Type species
  
  

CYSTISCIDAE Stimpson, 1865:55

Subfamily PLESIOCYSTISCINAE Coovert & Coovert, 1995:66

Genus Plesiocystiscus Coovert & Coovert, 1995:66

Marginella jewettii Carpenter, 1857; OD

Subfamily CYSTISCINAE Stimpson, 1865:55

Genus † Topaginella Laseron, 1957:288

Marginella octoplicata Tennison-Woods, 1877 †; OD (M)

Genus Cystiscus Stimpson, 1865:55

Cystiscus capensis Stimpson, 1865; M

Genus Crithe Gould, 1860:384

Crithe atomaria Gould, 1860; M

Genus Extra Jousseaume, 1894:98,101

Extra extra Jousseaume, 1894; M

Subfamily PERSICULINAE Coovert & Coovert, 1995:70

Genus Persicula Schumacher, 1817

Voluta persicula Linné, 1758: M

Genus Gibberula Swainson, 1840

Gibberula zonata Swainson, 1840; M

Genus Canalispira Jousseaume, 1875:168,270

Canalispira olivellaeformis Jousseaume, 1875; M

Subfamily GRANULININAE Coovert & Coovert, 1995:73

Genus Granulina Jousseaume, 1888:191

Marginella isseli Nevill & Nevill, 1875; M

Genus Pugnus Hedley, 1896:105-106

Pugnus parvus Hedley, 1896: OD (M)

Genus Paolaura Smiriglio & Mariottini, 2001

Paolaura semistriata Smiriglio & Mariottini, 2001: OD

Comparative

Plesiocystiscus	Cystiscus	Crithe	Extra
Persicula	Gibberula	Canalispira	Granulina
Pugnus

References

• Carpenter, Philip Pearsall 1857 (1855-1857). Catalogue of the collection of Mazatlan shells in the British Museum collected by Frederick Reigen. London:xvi+552 pp. (July 1855 - June 1857, each part dated at foot of first page)
• Coan, Eugene 1965. A proposed reclassification of the family Marginellidae (Mollusca: Gastropoda). The Veliger 7(3):184-193
• Coovert, Gary A. and Holly K. Coovert 1995. Revision of the Supraspecific Classification of Marginelliform Gastrapods. The Nautilus 109(2&3):43-110
• Gould, Augustus Addison 1860. Descriptions of shells collected in the North Pacific Exploring Expedition under Captains Ringold and Rogers. One part: Procedings Boston Society Natural History 7:382-385.
• Laseron, Charles F. 1957. A new classification of the Asutralian Marginellidae (Mollusca), with a review of species from the Solanderian and Dampierian zoogeographical provinces. Australian Journal of Marine and Freshwater Research 8(3):274-311.
• Nevill, G. and H. Nevill l874. Descriptions of new Mollusca from the Indian Ocean. Journal Asiatic Society of Bengal. Vol. XLIII, Part II.
• Smiriglio, C. and P. Mariottini 2001. Description of Paolaura gen. nov. and of three new species of Cystiscidae from the Indian Ocean. La Conchiglia 299:11-17.
• Shumacher, Cretien Frédéric 1817. Essai d´un nouveau système des habitations des vers testacés. Copenhagen, iv+287 pp.; 22plts.
• Stimpson, William 1865. On certain genera and families of zoophagous gasteropods. American Journal of Conchology 1(1):55-64;pls.8-9
• Swainson, William 1840. A treatise on malacology, or the natural classification of shells and shellfish. London, pp. 1-419;text figs. (Marginellidae:323-324 in part 2)

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