GNS Science

Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990)

New Zealand Cenozoic Mollusca

Eoturris uttleyi (Suter, 1917)


(Pl. 15t): GS9517, I40/f9805, Campbell Park School, Otekaike, Waitakian (GNS)

Beu & Maxwell (1990): Chapter 10; p. 162; pl. 15 t.

Synonymy: Turris uttleyi Suter 1917, p. 47

Classification: Turridae: Turrinae?

Description: Size moderate for subfamily (height 22-38 mm), fusiform, spire slightly more than half total height. Protoconch not known, but presumably as in E complicata (P1.8n). Teleoconch of 8-9 whorls, weakly angled near middle on spire; sutural ramp steep, concave, with moderate subsutural swelling, sides convex; last whorl excavated, with a moderately long, slightly curved neck. Axial sculpture of small, rounded, comma-shaped nodules, obsolete on ramp and scarcely extending below periphery, 16-17 on penultimate whorl, becoming obsolete on last whorl of some shells. Spiral sculpture of fine threads apparently over whole surface, with 1 or 2 somewhat stronger but rather subdued cords below periphery on spire whorls and 3 or 4 additional cords on base Aperture pyriform with a moderately long siphonal canal. Anal sinus moderately deep, U-shaped, with apex just above periphery.

Comparison: Eoturris uttleyi is distinguished from E. complicata (Pl. 8n) by its more weakly shouldered teleoconch whorls and by having comma-shaped rather than rounded peripheral nodules. This is the youngest known species of the genus.

Distribution: Waitakian; Otekaike Limestone, Trig Z, Otiake (type); Campbell Park School, Otekaike (uncommon).

Cite this publication as: "A.G. Beu and J.I. Raine (2009). Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990). GNS Science miscellaneous series no. 27."
© GNS Science, 2009
ISBN 978-0-478-19705-1
ISSN 1177-2441
(Included with a PDF facsimile file copy of New Zealand Geological Survey Paleontological Bulletin 58 in CD version from: Publications Officer, GNS Science, P.O. Box 30368 Lower Hutt, New Zealand)


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