Depressipoma kwajaleina, Mclean, 2012

Mclean, James Hamilton, 2012, New species and genera of colloniids from Indo-Pacific coral reefs, with the definition of a new subfamily Liotipomatinae n. subfam. (Turbinoidea, Colloniidae), Zoosystema 34 (2), pp. 343-376 : 368-370

publication ID

https://doi.org/ 10.5252/z2012n2a10

persistent identifier

https://treatment.plazi.org/id/6C26A814-FF9D-1474-D9FB-7B366F88F488

treatment provided by

Felipe

scientific name

Depressipoma kwajaleina
status

sp. nov.

Depressipoma kwajaleina View in CoL n. sp.

( Fig. 14 View FIG A-C)

TYPE MATERIAL. — Holotype: Kwajalein Atoll, Marshall Islands, 9°15’N, 167°30’E, ocean side of reef, sediment sample at 20 m, VII.2007, Wes Blackater for Bret Raines, H 1.7, D 3.2 mm ( LACM 3213 About LACM ). GoogleMaps

TYPE LOCALITY. — Kwajalein Atoll, Marshall Islands.

DISTRIBUTION. — Known only from the holotype.

ETYMOLOGY. — After the type locality, Kwajalein Atoll, Marshall Islands.

DESCRIPTION

Shell ( Fig. 14 View FIG A-C)

Of 2.7 whorls; profile very low, whorls with strong peripheral angulation nearly midway on whorl; whorls rounded and inflated above and below angulation. Axial sculpture of 27 projecting ribs, weakly spinose and projecting in early whorls, becoming less spinose in final whorl. Spiral sculpture of narrow cords, forming radially elongate cancellations; upper half of whorl with three weak cords, lower with three cords; emergent cord obscured. Umbilical slope broad, obscured by agglutinated deposition, partially obstructed by short extension of inner lip, forming short tongue. Final lip massive, extending for ∕₄ of final quarter whorl, with successively decreasing layers of deposition, with indentations conforming to spiral sculpture. Aperture slightly oblique, plane of aperture aligned with coiling axis. H 1.7, D 3.2 mm (holotype).

Operculum

Unknown. REMARKS

The single holotype specimen is poorly preserved and has a hole in the base on the last quarter whorl. It is clearly not the same as Liotipoma laddi n. sp., from Eniwetok, Marshall Islands, which has a more rounded profile and narrower spiral cords on the base.

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Trochida

Family

Colloniidae

Genus

Depressipoma

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