Cryoturris Explained

Cryoturris is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae.

Description

The shell is small or medium-sized, slender or moderately slender. The whorls are angulated at the periphery or rounded. The protoconch is slender or moderately slender, the apex generally rising abruptly, consisting of about 2 or 3 whorls. The body whorl or half whorl bears curved, protractive axial riblets and generally bulges at its periphery. The aperture is moderately narrow. The anterior canal is very short or hardly differentiated, slightly emarginate. The outer lip is simple, except at intervals corresponding to position of varix-like ribs. The anal notch is wide, shallow, or moderately deep. The sculpture consists of axial ribs, overridden by fine spiral threads and by microscopic frosted spiral threads.

This genus is the tropical representation of the temperate genus Kurtziella with a similar aperture and sculpture.

Species

Species within the genus Cryoturris include:

• Cryoturris adamsii (E. A. Smith, 1884)
• Cryoturris albida (C.B. Adams, 1845)
• † Cryoturris aptera W.P. Woodring, 1928
• Cryoturris cerinella (Dall, 1889)
• Cryoturris citronella (Dall, 1886)
• Cryoturris daidalea Gardner J.A., 1947 ^[1]
• † Cryoturris dianema Woodring, 1928
• † Cryoturris dominicensis (W.M. Gabb, 1873)
• Cryoturris edithae (Usticke, 1971)
• † Cryoturris etrema W.P. Woodring, 1928
• † Cryoturris euengonia W.P. Woodring, 1928
• Cryoturris fargoi McGinty, 1955
• † Cryoturris habra W.P. Woodring, 1970
• Cryoturris lavalleana (d' Orbigny, 1847)
• † Cryoturris magnoliana chariessa Gardner, 1948 ^[2]
• † Cryoturris nexilis W.P. Woodring, 1928
• Cryoturris quadrilineata (C. B. Adams, 1850)
• † Cryoturris serta A.A. Olsson & A. Harbison, 1953
• Cryoturris vincula (Usticke, 1969)

Species brought into synonymy:

• Cryoturris diadema W.P. Woodring, 1928 : synonym of Cryoturris dianema W.P. Woodring, 1928
• Cryoturris dorvilliae (Reeve, 1845): synonym of Kurtziella dorvilliae (Reeve, 1845)
• Cryoturris elata (Dall, 1889): synonym of Platycythara elata (Dall, 1889)
• Cryoturris filifera (Dall, 1881): synonym of Gymnobela filifera (Dall, 1881)
• Cryoturris serga (Dall, 1881): synonym of Kurtziella serga (Dall, 1881)
• Cryoturris trilineata (Adams C. B., 1845): synonym of Tenaturris trilineata (C. B. Adams, 1845)

References

• W. P. Woodring. 1928. Miocene Molluscs from Bowden, Jamaica. Part 2: Gastropods and discussion of results . Contributions to the Geology and Palaeontology of the West Indies

External links

• Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1-1295.
• Worldwide Mollusc Species Data Base: Mangeliidae

Notes and References

1. https://pubs.usgs.gov/pp/0142g/report.pdf Julia Gardner (1947): The Molluscan Fauna of the Alum Bluff Group of Florida; Professional Paper 142, U.S. Government Printing Office, Washington, 1947
2. https://pubs.usgs.gov/pp/0199b/report.pdf J. A. Gardner. 1948. Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina: Part 2. Scaphopoda and Gastropoda. United States Geological Survey Professional Paper 199(B):179-310