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Taxon profile

species

Epitonium nautlae (O.A.L. Mörch, 1875)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  family Epitoniidae - Wentletraps »  genus Epitonium

Scientific synonyms

Scala nautlae Mörch, 1875
Depressiscala nautlae (O.A.L. Mörch, 1875)
Scala scipio Dall, 1889
Depressiscala scipio W.H. Dall, 1889
Scalaria teres Bush, 1885
Depressiscala teres (Bush, 1885)

Images

Epitonium nautlae

Author: Daccarett, E.Y. & Rossio, V.S.

Epitonium nautlae

Author: Dall, W.H.

Epitonium nautlae

Author: Tunnell et al.

Epitonium nautlae

Author: Weil et al.

Taxon in country check-lists*

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Description

Depressiscala scipio (SYNONYM): Shell livid flesh-color, brilliantly polished, smooth, with nine to fifteen whiter thin low varices, curved and appressed at the suture, where they are slightly expanded; here and there one is of double size. The varices are often but not always continuous; the whorls are rounded, ten or fifteen in number, of which three, hardly distinguishable from the rest except by their paleness, are nuclear ; mouth ovate, lip thin, narrow, reflected; base rounded without a disk or cordon; suture distinct but partly filled by the expanded tips of the appressed varices. Lon. 16.0 mm, max. lat. 4.0 mm.
Source: Dall, 1889. Reports on the results of dredgings, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U. S. Coast Survey Steamer 'Blake'. (Original description)
Distribution: North Carolina to Florida, Texas; Bahamas; Cuba; Mexico. Size: 15 mm
Description: Color reddish to purplish-brown; shape tall, slender, conic; sculpture of numerous low and reflected non-diverging axial ridges; has a hooklike connection at shoulders of teleoconch whorls; inner spaces between axial ridges smooth; protoconch extended when present; suture grooved but not deep; aperture ovate; parietal region smooth; operculum corneous, thin, and paucispiral.
Habitat: Has been dredged offshore at depths from 6 to 121 m (20 to 400 ft). Remarks: Apex absent in specimen in photograph. See Clench and Turner (1952); Ode (1973c); Andrews (1977).
Tunnell, J.W. , Andrews, J. , Barrera, N.C. & Moretzsohn, F., 2010. Encyclopedia of Texas seashells.
Small, about 14mm, with 10-12 whorls and an angle to spire of 20-25 degrees. White to tan or reddish brown in color. Axial sculpture consisting of 12-14 costae, low, reflected, with tiny angles or hooks at the shoulder. No spiral sculpture and no basal ridge. This species occurs from low water to about 65 fathoms. It is found from off the coast of North Carolina, south through Florida to the Bahamas and as far south as southern Mexico. This is not a common species.
Weil, A. , Brown, L. & Neville, B, 1999. The Wentletrap book - Guide to the Recent Epitoniidae of the world.

Interchangeable taxa

This is the most slender recent species I have seen, and is readily recognized by its livid pink color, glassy polish and thin varices, compactly rolled spire, and absence of umbilicus, fasciole, or disk on the base. It is nearest to S. aciculina Hinds, but still more slender and drawn out.
Source: Dall, 1889. Reports on the results of dredgings, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U. S. Coast Survey Steamer 'Blake'. (Original description)
Author: Jan Delsing

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Depressiscala nautlae Mörch, 1874]
Data retrieved on: 28 January 2018

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