Episiphon lacteum, Scarabino & Scarabino, 2010

Scarabino, Victor & Scarabino, Fabrizio, 2010, A new genus and thirteen new species of Scaphopoda (Mollusca) from the tropical Pacific Ocean, Zoosystema 32 (3), pp. 409-423 : 418

publication ID

https://doi.org/ 10.5252/z2010n3a3

persistent identifier

https://treatment.plazi.org/id/03C18783-FFA8-FF80-FF55-FC85FB72FD69

treatment provided by

Marcus

scientific name

Episiphon lacteum
status

n. sp.

Episiphon lacteum n. sp.

( Fig. 3K, L View FIG )

TYPE MATERIAL. — Wallis and Futuna. MUSORSTOM 7, stn DW 538, Waterwitch Bank , 12°31’S, 176°40’W, 275-295 m, 1 dd holotype ( MNHN 22790 View Materials ) GoogleMaps ; 1 dd paratype ( MNHN 22791 View Materials ). — Stn DW 569, Waterwitch Bank, 12°30’S, 176°51’W, 300-305 m, 1 dd paratype ( MNHN 22792 View Materials ). — Stn DW 610, Wallis Island, 13°21’S, 176°09’W, 286 m, 1 dd paratype ( MNHN 22793 View Materials ) GoogleMaps .

TYPE LOCALITY. — Waterwitch Bank, 12°31’S, 176°40’W, 275-295 m (MUSORSTOM 7, stn DW 538).

ETYMOLOGY. — From the Latin lacteus meaning “milkwhite”.

OTHER MATERIAL EXAMINED. — New Caledonia. EBI- SCO, stn DW 2570, north of Bellona, 20°27’S, 158°45’E, 235-263 m, 1 dd.

DISTRIBUTION. — NE of Fiji and and Coral Sea. Shells in 263- 300 m.

DESCRIPTION

Shell 16 mm long, well curved, arc located at posterior third, milk-white coloured, smooth, polished, slowly tapering. Apex oblique with protruding apical callus and an irregular short central plug. Section circular, anterior aperture straight.

Measurements of holotype: L 16, W 1.5, w 9.5, arc 0.64 at 5.2 from apex.

REMARKS

The main distinctive character of this species, which in this regard is similar to Episiphon joanae n. sp., described above, is the obliqueness of the apex and the degree of protuberance of the apical callus, distinguishing both species from all other species in the genus.

Order GADILIDA Starobogatov, 1974 Suborder ENTALIMORPHA Steiner, 1992 Family ENTALINIDAE Chistikov, 1979 Subfamily BATHOXIPHINAE Chistikov, 1983 Genus Bathoxiphus Pilsbry & Sharp, 1897

Kingdom

Animalia

Phylum

Mollusca

Class

Scaphopoda

Order

Dentaliida

Family

Gadilinidae

Genus

Episiphon

Loc

Episiphon lacteum

Scarabino, Victor & Scarabino, Fabrizio 2010
2010
Loc

ENTALIMORPHA

Steiner 1992
1992
Loc

BATHOXIPHINAE

Chistikov 1983
1983
Loc

ENTALINIDAE

Chistikov 1979
1979
Loc

GADILIDA

Starobogatov 1974
1974
Loc

Bathoxiphus

Pilsbry & Sharp 1897
1897