Dactylidia mutica [(Say, 1822) ]

Dactylidia mutica

General description:

Distribution: Temperate Northern Atlantic realm. Warm Temperate Northwest Atlantic province (East coast of the USA from the Maryland-Virginia border southward to Florida as well as along the northern Gulf of Mexico coastline to the panhandle counties of Florida). Pliocene. Pliocene of Maryland, Virginia, North Carolina and South Carolina (Yorktown Formation). Pleistocene. Pleistocene of Florida, USA (Fort Thompson Formation). Pleistocene of South Carolina, USA.

The species was documented in detail by Krisberg (2017). It most closely resembles the congeneric and partialy syntopic Dactylidia pusilla (Marrat, 1871) but differs by growing larger (maximum shell length up to c 12 mm), having a less elongate shell, less callused shoulder and a smaller protocnch.

Look alikes:

This species most closely resembles Olivella pusilla (Marrat, 1871).

Reproduction:

Paine (1962) reported on the reproduction of the species.

Mon, 2014-11-10 16:55 -- ron_voskuil
Oliva mutica

Original description(s):

"Shell suboval, white, or yellowish-white; body whorl with about three revolving maculated bands of pale rufous, of which the superior one is continued upon the spire, the intermediate one is dilated so as to be sometimes confluent with the inferior one, which is narrowest; spire short; suture very narrow; columella destitute of striae. Length more than two-fifths of an inch.". Recent. No locality given.

Sat, 2018-08-25 11:33 -- ron_voskuil
Oliva rufifasciata

Original description(s):

"Shell ovate, stout, rather solid, spire short, acuminated, columella arched, obscurely finely plaited, callous at the upper part; whitish, broadly banded with chestnut-red.". Recent. Unknown locality.

Thu, 2015-04-16 12:53 -- ron_voskuil
Oliva duplicata

Original description(s):

"Elliptical; spire conical, volutions 5, rectilinear; labrum about half as long as the shell; aperture less, caused by a thick deposit on the upper part of the columella, which extends more than half the distance from the summit of the labrum to the suture; labrum with a rectilinear margin; aperture narrow and somewhat oblique. Length, half an inch.". Miocene. Wilmington, North Carolina, USA.

Sun, 2015-04-05 12:34 -- ron_voskuil
Oliva fimbriata

Original description(s):

"Shell ovate, rather swollen round the upper part, spire somewhat exserted, columella arched, scarcely plaited, plaits callous; yellowish-brown, longitudinally obscurely very finely streaked, encircled beneath the sutures with a pale band, blotched with network.". Recent. West Indies.

Tue, 2014-12-02 16:19 -- ron_voskuil

The Olivoidea (Mollusca: Gastropoda) Scratchpad

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Dactylidia mutica (Say, 1822)

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Dactylidia mutica

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Oliva rufifasciata

Oliva duplicata

Oliva fimbriata

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Dactylidia mutica (Say, 1822)

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