Bathyal Mollusca from the cold-water coral biotope of Santa Maria di Leuca (Apulian margin, southern Italy)
Author
Negri, Mauro Pietro
Author
Corselli, Cesare
text
Zootaxa
2016
4186
1
1
97
journal article
10.11646/zootaxa.4186.1.1
5b97cddd-5284-4a6b-8693-898864fb4711
1175-5326
165288
029B675F-776C-4CD6-9992-FA05AEADFA7B
Mikro
? sp.
Fig. 12
k–m
Diagnostic characters
. Low-spired shell; large oval aperture; reflexed basal and parietal lips; deep and moderately narrow umbilicus; smooth outer surface except for two distinct and some faint subsutural spiral lirae on the first teleoconch whorl. Protoconch: planispiral; 1 whorl; diameter about 100 µm; dense minute granules on the abaxial half (adaxial part somewhat eroded); transition to the teleoconch marked by a barely visible thin lip.
Remarks
. This little “skeneimorph” species is provisionally attributed to the genus
Mikro
Warén, 1996
.
Mikro giustii
(Bogi & Nofroni, 1989)
, the other known Mediterranean species of the genus, differs in having a more globose shell with a comparatively higher spire.
Occurrence
. Cores BC04 (1 specimen), BC05 (17), BC21 (1), BC51 (1), BC52 (4). Maximum height:
0.7 mm
.
Distribution and habitat
. The species of the present genus are bathyal elements;
Mikro globulus
Warén, 1996
is distributed in
Iceland
waters in the
200–1100 m
depth interval, while
M. giustii
is reported as occurring in the Mediterranean only (
Warén 1996
).