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
Diaphana
cf.
lactea
(
Jeffreys, 1877
)
Fig. 19
e–f
Utriculus lacteus
Jeffreys, 1877
(p. 334).
Diaphana jonica
Di Geronimo, 1974
(p. 151, pl. 2, fig. 2).
Diaphana lactea
(
Jeffreys, 1877
)
—
Repetto
et al.
2005
(p. 255, mid left fig);
Ohnheiser & Malaquias 2014
(p. 507, figs. 5–6).
Diagnostic characters
. Ovate-cylindrical shell; moderately wide ear-shaped aperture; barely reflexed basal lip; very narrow umbilical chink; outer surface smooth except for growth lines. Protoconch: heterostrophic, half immersed, transaxial; about 2 visible whorls; diameter about 300 µm; surface smooth; transition to the teleoconch marked by a thin orthocline lip.
Remarks
. The present specimen resembles
D. lactea
, except for the lack of the spiral striation mentioned in Jeffreys’ original description.
Diaphana jonica
Di Geronimo, 1974
is currently regarded as a junior synonym of
D. lactea
(CLEMAM 2016).
Occurrence
. Box-corer sample BC05 (1 specimen). Height:
2.5 mm
.
Distribution and habitat
.
Diaphana lactea
seems to range from northern to the central Atlantic and the Mediterranean, being more commonly found in deep bathyal settings (
Linse & Schiøtte 2002
;
Høisaeter 2009
,
2010
).
Fossil record.
None recorded.