Taxon profile


Turbonilla ottomoerchi J. G. Hertlein & A. M. Strong, 1951

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Allogastropoda »  family Pyramidellidae »  genus Turbonilla


Turbonilla ottomoerchi

Author: Hertlein, L.G. & Strong, A.M.

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Shell elongate-conic, slender, white; nucleus having a depressed helicoid spire with the axis at right angles to that of the following whorls, in the first of which it is about one-third immersed; normal whorls 10, flatsided, narrowly, slopingly shouldered on the upper whorls, little raised above the sutures on the later whorls; axial ribs low, moderately retractive, straight, extending to the umbilical region, 10 appearing on the first whorl, increasing to 26 on the last; interspaces about as wide as the ribs, crossed by 12 equal and equally spaced spiral series of incised lines; periphery rounded, without definite marking; base rounded, marked with incised spiral lines similar to those on the spire except that on the lower part they ride over the low swellings which mark the extensions of the axial ribs in the umbilical region; aperture oval, outer lip thin, columella somewhat twisted. The type measures: length, 6.0 mm.; diameter, 1.4 mm.
Hertlein, L.G. & Strong, A.M., 1951; Mollusks from the W. Coast of Mexico & Central America. Part 10

Interchangeable taxa

The shell of this species may be differentiated from that of Turbonilla (Pyrgiscus) porteri Baker, Hanna & Strong in that the upper whorls are narrowly slopingly shouldered rather than well rounded.
Hertlein, L.G. & Strong, A.M., 1951; Mollusks from the W. Coast of Mexico & Central America. Part 10


Pacific Middle America
Author: Jan Delsing

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [] [as Turbonilla ottomoerchi Hertlein & Strong, 1951]
Data retrieved on: 23 November 2013

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