Schwartziella peregrina, Gofas, 2007

Gofas, Serge, 2007, Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts, Journal of Natural History 41 (13 - 16), pp. 779-885 : 871-872

publication ID

https://doi.org/ 10.1080/00222930701298085

persistent identifier

https://treatment.plazi.org/id/6D0287CF-FFEE-FFB0-C8F2-FD4551C2FB95

treatment provided by

Felipe

scientific name

Schwartziella peregrina
status

sp. nov.

Schwartziella peregrina View in CoL n. sp.

( Figure 59 View Figure 59 )

Type material

Holotype MNHN 9727 About MNHN (sh., 6.28× 2.12 mm) and nine paratypes MNHN 9785 About MNHN (sh., 5.90×2.10 to 6.60× 2.40 mm) from Seamount 2 sta. DW152, in MNHN.

Type locality Meteor seamount, 30 ° 02.09N, 28 ° 22.19W, 470 m. Material examined Meteor— Seamount 2 sta. DW136, 1 sh. (5.80× 1.84 mm); DW143, 16 sh. (5.15×1.85 to

6.37×2.00 mm); DW152, the type material.

Etymology

From Latin peregrinus, a wanderer or pilgrim, alluding to the remote geographical origin.

Description Shell very slender, solid, up to 6.6× 2.4 mm. Protoconch of 1.5 quite convex whorls,

smooth. Teleoconch with ca 7.5 quite convex whorls; body whorl rounded. Surface with strong, opisthocline, slightly flexuous axial ribs (ca 14 on the penultimate whorl), equivalent in size to the interspaces; and a complex spiral microsculpture of longitudinal slots which are offset along the growth lines. Aperture piriform, channelled at both ends. Outer lip opisthocline, strongly thickened externally, inside smooth, with a sharp edge. Inner lip slightly thickened, appressed.

Remarks

There are many species of Schwartziella in the Cape Verde Islands (see Rolán and Luque 2000) and a few on the mainland of West Africa (see Gofas 1999), but S. peregrina differs in being much more slender than any of them.

MNHN

Museum National d'Histoire Naturelle

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