Fustiaria diaphana, 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 : 412-414

publication ID

https://doi.org/ 10.5252/z2010n3a3

persistent identifier

https://treatment.plazi.org/id/03C18783-FFA2-FF8C-FC84-FD27FDA5FC2D

treatment provided by

Marcus

scientific name

Fustiaria diaphana
status

n. sp.

Fustiaria diaphana n. sp.

( Fig. 1 L-O)

TYPE MATERIAL. — Coral Sea. EBISCO, stn DW 2639, 20°47’S, 161°01’E, 289-294 m, 1 dd holotype ( MNHN 22778 View Materials ) GoogleMaps ; 2 dd paratypes ( MNHN 22779 View Materials ) .

TYPE LOCALITY. — Coral Sea, south of Lansdowne Bank, 20°47’S, 161°01’W, 289-294 m ( EBISCO, stn DW 2639).

ETYMOLOGY. — The species epithet derives from the Greek, meaning translucent.

OTHER MATERIAL EXAMINED. — Coral Sea. EBISCO, stn DW 2639, 20°47’S, 161°01’E, 289-294 m, 14 dd.

DISTRIBUTION. — Coral Sea. Shells at 289- 294 m.

DESCRIPTION

Shell 35.3 mm long, well curved, translucent, very gradually tapering, smooth, growth lines noticeable, thick-walled for ¾ from apex becoming thin-walled and fragile towards the anterior aperture, cross section slightly laterally compressed throughout. Apical and anterior apertures straight, apical callus thick, walls oblique to lumen, ventral side exhibits a vertical

A C D

J

K

series of V-shaped threads that continue for a short distance internally in the ventral axis of shell, visible because of the transparency of the shell. Lumen also laterally oval, internal wall extends outside, entire on dorsal side and fissured ventrally. Measurements of holotype: L 35.5, W 1.6-1.51, apex 1.23-1.10, arc 3.6 at 17 from apex.

REMARKS

Fustiaria diaphana n. sp. is characterized primarily by its almost parallel sides, resembling some species of Episiphon but clearly differing in the apex and apical callus. As no radular information is available, the allocation of the new species in Fustiaria must be considered tentative but here suggested given the similarity of the apical structure with Fustiaria langfordi (Habe, 1963) and F. vagina Scarabino, 1995 (see Scarabino 1995: fig. 88h, i). Young specimens show the apex slightly oblique, the dorsal side longer and a shallow notch in the ventral axis, resembling F. vagina apical morphology.

Family GADILINIDAE Chistikov, 1975

Kingdom

Animalia

Phylum

Mollusca

Class

Scaphopoda

Order

Dentaliida

Family

Fustiariidae

Genus

Fustiaria

Loc

Fustiaria diaphana

Scarabino, Victor & Scarabino, Fabrizio 2010
2010
Loc

Fustiaria diaphana

Scarabino & Scarabino 2010
2010
Loc

F. vagina

Scarabino 1995
1995
Loc

F. vagina

Scarabino 1995
1995
Loc

GADILINIDAE

Chistikov 1975
1975
Loc

Episiphon

Pilsbry & Sharp 1897
1897
Loc

Fustiaria

Stoliczka 1868
1868