Cingula

Cingula katherinae, copyright Yolanda Villacampa.

Belongs within: Rissooidea.

Cingula is a genus of minute marine gastropods with a conical shell found in the North Pacific and North Atlantic (Oldroyd 1927).

Characters (from Oldroyd 1927): Shell minute, white or horny; conical, pointed, many-whorled; smooth or cancellated; aperture rounded; peristome entire, continuous; outer lip slightly expanded and thickened; operculum sub-spiral.

<==Cingula Fleming 1818 [Cingulinae] BR05
    |--*C. (Cingula) cingillus (Montagu 1803) BR17 (see below for synonymy)
    `--C. (Nodulus Monterosato 1878) O27
         |--C. (N.) asser Bartsch 1919 O27
         |--C. (N.) cerinella (Dall 1886) [=Onoba cerinella] O27
         |--C. (N.) kelseyi (Bartsch 1919) [=Nodulus kelseyi] O27
         |--C. (N.) kyskensis Bartsch 1911 O27
         `--C. (N.) palmeri Dall 1919 O27

Cingula incertae sedis:
  C. alaskana Bartsch 1912 O27
  C. aleutica Dall 1886 O27
  C. arenaria Mighels & Adams 1842 J49
  C. californica Tryon 1865 O27
  C. carinata Mighels & Adams 1842 J49
  C. interrupta CS77
  C. katherinae Bartsch 1912 O27
  C. latior Mighels & Adams 1842 J49
  C. martyni Dall 1886 [=C. robusta martyni] O27
    |--C. m. martyni O27
    `--C. m. scipio Dall 1886 [=C. robusta scipio] O27
  C. minuta C64
  C. montereyensis Bartsch 1912 O27
  C. orvieta Dall 1919 O27

Nomen nudum: Cingula candida Mighels 1841 J49

*Cingula (Cingula) cingillus (Montagu 1803) BR17 [=Turbo cingillus BR17, Rissoa cingillus O27; incl. R. cingillus var. ruprestris J79]

*Type species of generic name indicated

REFERENCES

[BR05] Bouchet, P., & J.-P. Rocroi. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1–2): 1–397.

[C64] Carpenter, P. P. 1864. Supplementary report on the present state of our knowledge with regard to the Mollusca of the west coast of North America. Report of the British Association for the Advancement of Science 33: 517–686.

[CS77] Cramp, S., & K. E. L. Simmons (eds) 1977. Handbook of the Birds of Europe, the Middle East and North Africa: The Birds of the Western Palaearctic vol. 1. Ostrich to Ducks. Oxford University Press: Oxford.

[J79] Jeffreys, J. G. 1879. Notes on Colonel Montagu's collection of British shells. Journal of Conchology 2: 1–4.

[J49] Johnson, R. I. 1949. Jesse Wedgwood Mighels with a bibliography and a catalogue of his species. Occasional Papers on Mollusks 1 (14): 213–231.

[O27] Oldroyd, I. S. 1927. The Marine Shells of the West Coast of North America vol. 2 pt 3. Stanford University Press: Stanford University (California).