Overview

Comprehensive Description

Description

Original Description: In ‘Journal de Conchyliologie’ Vol. 5 (1856) pp. 160-166 Plate 5; “Description d’un Pleurotomaire vivant” by P. Fischer and A.C. Bernardi.

The holotype is in the British Museum (Natural History), London. Cat. No. 1948.5.12.2.

Synonomies:

Pleurotomaria Quoyana Fischer & Bernardi, 1856; Dall, 1881; Crosse, 1882; Bouvier & Fischer, 1898; Schmalz, 1901; Abbott & Dance, 1982; Glass & Foster, 1986

Pleurotomaria (Perotrochus) quouyana Pilsbry, 1890; Hickman, 1984

Pleurotomaria quoyanus Abbott, 1963

Perotrochus gemma Bayer, 1965

Perotrochus quoyana Dance, 1969

Perotrochus quoyanus Bayer, 1965; Dance, 1966; Cross & Morrison, 1971; Moolenbeck & Coomans, 1976; Okutani, 1987; Healy & Harasewych, 1992; Anseeuw & Goto, 1996; WoRMS, 2010

Video of Perotrochus quoyanus

GenBank - Perotrochus quoyanus

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Source: Pleurotomariidae

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Distribution

Smithsonian Collection Specimens

Catalog Number

Country

State

Locality

Geo Decimal Latitude

Geo Decimal Longitude

Depth, minimum (meters)

Depth, maximum (meters)

819194

Bermuda

Off S Shore + 1 1/2 Mile SE Of Saint Davids

293

366

869626

Barbados

Payne's Bay Church

213

213

501185

Barbados

Lazaretto, Off Of

165

183

869627

Grenada

Off Grenada

300

350

639048

British Virgin Islands

Anegada Island, NW Of Island, Near Puerto Rico

256

256

501187

Barbados

Carlisle Bay, Off Of

11

11

95096

Barbados

Off Of

541

154

801706

Haiti

150 Mile NNW Port Au Prince

20.833

-73.383

311

311

801707

Cuba

100 Mile NNE Of Sagua La Grande

23.583

-79.567

183

238

869628

Barbados

Off Barbados

200

210

892609

Guadeloupe

Basse-Terre, 1.23 Mile W Of Islets-A-Goyaves

16.16667

-61.81889

289

289

878154

Guadeloupe

Basse Terre Island, Goyaves Island, W Of Island

16.17583

-61.81667

350

360

888646

Guadeloupe

Grand-Terre Island, Pointe A Pitre, Off Pointe Ferry

16.28111

-61.835

275

275

95098

Mexico

Quintana Roo

Arrowsmith Bank, Off Of

20.99167

-86.39583

238

238

846646

Barbados

NE Of Barbados

201

201

858173

St. Lucia

Caille Point, Off Point

13

-61.09028

335

335

878000

Grenada

Ronde Island, SW Coast

12.3075

-61.64306

341

341

846640

Barbados

Off Barbados

201

201

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Source: Pleurotomariidae

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Physical Description

Diagnostic Description

Description: “P. Testa supernè trochiformis, infernè complanata et paululùm concave sed non umbilicata; obtusè carinata, ad basim rotundata; vertice acuminato; anfractibus 9, breviter accrescentibus, propè suturam inflates rotundatisque; fascia fissuræ bipartitis, suprà fasciam tuberculis elegantissimis, decussatìm et obliquè dispositis; infrà fasciam tuberculis majoribus, rectè radiantibus; munitis. Fascia fissuræ sulcis concentricis et stiis semi-circularibus decussata. Depressio umbilicalis exacavata, margaritacea, sulcis concentricis circumdata; apertura semi-ovata intùs margaritacea; columella tenui callo margaritaceo munita; peristomate simplici, acuto, non margaritaceo, obtusè angulato, fissurâ late diviso. Testa pallidè carnea; maculis rufis, evanescentibus, præsertim in ultimo anfractu, ornata.”

“Coquille trochiforme, à base arrondie, aplatie et concave, mais non ombiliquée; obtusément carénée; sommet acuminé; neuf tours de spire, augmentant graduellement; arrondis et renflés près de la suture; divisés en deux portions par la fascie de la fissure; une supérieure portant des tubercules obliquement dirigés; une inférieure chargée de tubercules plus volumineux, dirigés verticalement. Fascie de la fissure décussée par des stries concentriques et semi-circulaires. Dépression ombilicale excavée, nacrée, irisée, entournée de sillions concentriques; ouverture semi-ovale; columelle recouverte d’une légère callosité nacrée; péristome non réfléchi, trenchant, sans nacre, obtusément anguleux, divisé profondément par la fissure. La coquille est d’un rose pale, ornée de taches obscures, brunâtres, surtout vers le dernier tour.” (Fischer and Bernardi, 1865)

Trochiform shell, at the base round, flat and concave, but not umbilicated; obtusely keeled; acuminate summit; nine whorls of the spire, climbing gradually; rounded and inflated near the suture; divided in two portions by the fasciole of the fissure; on the top some beads are directed at an angle; a lower region of more voluminous beads are directed vertically. Fascioles of the fissure decussate by the concentric, semi-circular striae. The umbilical depression is excavated, nacreous, iridescent, turning from a concentric spiral; semi-oval opening; columella covered with a slight nacreous callous; peristome non-reflective, entrenched, without nacre, wide angles, sharply divided by the fissure. The shell is pale pink, ornamented with obscure marks, brownish, mostly around the last whorl. (Translation by Emilia Gillevet)

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Source: Pleurotomariidae

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