An illustrated catalogue of Rudolf Sturany's type specimens in the Naturhistorisches Museum Wien, Austria (NHMW): Red Sea gastropods
Author
Albano, Paolo G.
https://orcid.org/0000-0001-9876-1024
Department of Palaeontology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
pgalbano@gmail.com
Author
Bakker, Piet A. J.
Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands
Author
Janssen, Ronald
Malacology Section, Senckenberg Research Institute and Natural History Museum, Senckenberganlage 25, 60325 Frankfurt am Main, Germany,
Author
Eschner, Anita
Naturhistorisches Museum Wien, 3. Zoologische Abteilung, Burgring 7, 1010 Wien
text
Zoosystematics and Evolution
2017
2017-01-18
93
1
45
94
http://dx.doi.org/10.3897/zse.93.10039
journal article
http://dx.doi.org/10.3897/zse.93.10039
1860-0743-1-45
0BA1B8432BD449FC8FDAF68041A5D167
8BF19C7ACDA45671A0A8BCF324660CD0
250941
Pleurotoma (? Drillia) inchoata Sturany, 1900
Figure 22
Pleurotoma (? Drillia) inchoata
Sturany, 1900b: 210; redescribed and illustrated in
Sturany (1903)
, page 229-230, plate III, figures 8a-b.
Type locality.
Station 145,
"oestlich
von J. Dahalak" [east of Dahlak Island, Eritrea],
16°2.6'N
,
41°13.5'E
, 800 m.
Type material.
Holotype: NHMW 84251, height 21.2 mm.
Original description.
Schale abgestutzt
spindelfoermig
, hellgelb, aus 9 1/2
Umgaengen
bestehend, deren jeder mit Ausnahme des Embryonalgewindes in seiner oberen
Haelfte
concav, in seiner unteren convex gebaut ist, und welche mit zahlreichen Spiralreifen und circa 15-16
wellenfoermig
verlaufenden Querrippen ausgestattet sind;
ueberdies
stehen zwischen den Querrippen noch mikroskopisch feine Anwachsstreifen. Unmittelbar vor der (leider mangelhaft erhaltenen)
Muendung
eine knotig angeschwollene und nach rechts vorgezogene Querrippe.
Hoehe
der Schale 21,3, Breite 9,0 mm;
Hoehe
der
Muendung
9,1 mm.
Ein einziges Exemplar von Station 145 (800 m).
Verwandt mit
Pleurotoma (Drillia) pallida
Sow.; in der Form an
Columbella angularis
Sow. gemahnend.
Figure 22.
Pleurotoma inchoata
Sturany, 1900, Station 145 (Dahlak Archipelago, Eritrea, Red Sea).
A
. Original figure by
Sturany (1903)
.
B-D
,
F
. Holotype, NHMW 84251: front (
B
), right side (
C
), back (
D
), protoconch (
F
).
E
. Original holotype label. Scale bars:
B-D
: 5 mm,
F
: 0.5 mm.
Translation.
Shell truncated and fusiform, pale yellow, made by 9.5 whorls, concave in their upper half and convex in the lower half, with the exception of the protoconch; with numerous spiral threads and approximately 15 - 16 undulated axial ribs among which microscopically fine growth lines stand. Immediately prior to the (unfortunately poorly preserved) aperture, there is a thick nodulose axial rib bent to the right.
Height of the shell 21.3 mm, width 9.0 mm; height of the mouth 9.1 mm.
A single specimen from station 145 (800 m).
Related to
Pleurotoma (Drillia) pallida
Sowerby; shape reminding
Columbella angularis
Sowerby.
Comments.
This species can be assigned to the genus
Drillia
Gray, 1838