Polygona bernadensis ( Bullock, 1974 )

Lyons, William G. & Snyder, Martin Avery, 2019, Fasciolariidae (Gastropoda: Neogastropoda) of French Guiana and nearby regions, with descriptions of two new species and comments on marine zoogeography of northeastern South America, Zootaxa 4585 (2), pp. 239-268 : 258-259

publication ID

https://doi.org/ 10.11646/zootaxa.4585.2.2

publication LSID

lsid:zoobank.org:pub:882D13C5-D921-43B3-9847-4B3925EBB671

DOI

https://doi.org/10.5281/zenodo.5462157

persistent identifier

https://treatment.plazi.org/id/03F98781-FFB9-E45C-4093-0EDBFEDF0D8B

treatment provided by

Plazi

scientific name

Polygona bernadensis ( Bullock, 1974 )
status

 

Polygona bernadensis ( Bullock, 1974) View in CoL

( Figures 27–28 View FIGURES 17–38 )

? Latirus infundibulum: Horst & Schepman, 1894: 93 View in CoL ; Kempf & Matthews, 1968: 93; Altena, 1969: 12; Rios, 1970: 96; Altena, 1975: 55; Lyons, 1991: 201 (pars; Rios 1985 report from Brazil possibly based on L. bernadensis View in CoL ; figured shell not much resembling L. infundibulum View in CoL ); Matthews-Cascon et al., 1991: 1 ( Brazil); Díaz, 1995: 118 (pars; Orinoco Delta to Guiana and Suriname); Capelo & Buitrago, 1998: 132 (pars; eastern Venezuela; reported from Puerto La Cruz and Guayana); Massemin et al., 2000: 21 ( Guyane; depth <30 m); Rios, 2009: 252, figs. (pars; senior synonym of L. bernadensis View in CoL ; Brazilian occurrence; 2–50 m; shell of unstated origin figured, = P. infundibulum View in CoL );? non L. infundibulum View in CoL = Polygona infundibulum ( Gmelin, 1791) View in CoL , Florida, Texas and Caribbean Sea.

Latirus (Polygona) bernadensis Bullock, 1974: 72 View in CoL –74, 76, 77, fig. 13; Rios, 1975: 104, pl. 29, fig. 437; Lyons, 1991: 198; Snyder, 2003: 49; Rios, 2009: 252.

Latirus brevicaudatus: Altena, 1975: 55 ( Suriname) ; non L. brevicaudatus = Polygona brevicaudata ( Reeve, 1847) View in CoL , Recent, northern Caribbean region.

? Latirus (Polygona) infundibulum: Rios, 1975: 104 View in CoL , pl. 29, fig. 438 (pars; Suriname and Brazil, sandy, rocky and broken shell bottoms; 6 stations, 30–55 m; dimensions 40 x 15 x 14 mm); Rios, 1985: 106, 107 (pars; Suriname); Rios, 1994: 133 (pars; Suriname);? non P. infundibulum ( Gmelin, 1791) View in CoL .

Latirus bernadensis: Petuch, 1979: 520 View in CoL , 521, fig. 3C; Rios, 1985: 107; Petuch, 1987: 90, 122, 123, pl. 18, fig. 1; Lyons, 1991: 200, 201; Matthews-Cascon et al., 1991: 1; Díaz & Puyana, 1994: 196; Rios, 1994: 133; K. & L. Sunderland, 1996: 16, 2 figs.; Mallard & Robin, 2005: pl. 41 (pars; right figured shell only, from French Guiana); Massemin et al., 2009: 153, 156 ( Barbados, Suriname and French Guiana; figured shell from French Guiana); Rios, 2009: 252; Daccarett & Bossio, 2011: 101; non L. bernadensis Mallard & Robin (2005: pl. 41) View in CoL , left figured shell from Brazil = Polygona bayeri ( Petuch, 2001) View in CoL .

? Lathyrus infundibulum: de Oliveira et al., 1981: 215 ( Salvador, Bahía, Brazil).

Latirus infundibulum: Okutani in Takeda & Okutani, 1983: 280 View in CoL , figs. ( Suriname; depth to 64 m); non P. infundibulum ( Gmelin, 1791) View in CoL , eastern Florida, Gulf of Mexico and Caribbean Sea.

Polygona bernadensis: Vermeij & Snyder, 2006: 418 View in CoL –420, fig. 3I; Mallard & Robin, 2017: 270, figs. 1–3 (size 35–60 mm; depth 0–10 m; range: Barbados and Venezuela to Ceará, Brazil; 3 figured shells from Venezuela, “West Indies” and French Guiana).

Types. Holotype: 44.2 mm, Barbados, Lesser Antilles , MCZ 2754282 View Materials . Paratypes: 2, 36.7 and 36.4 mm, both from type locality, MCZ 275429 View Materials ( Bullock 1974: 72, 77, fig. 13) .

Material examined. French Guiana —3-lv, 35.5 (IM-2013-50690), 35.9 (IM-2012-20352) and 39.6 mm (IM- 2013-50677), 1-dd, 39.0 mm, GUYANE sta. CP 4353, 05°12.4’N, 51°40.2’W, 60 m, 28 Jul 2014; 1-lv, 17.1 mm, GUYANE sta. CP 4355, 06°17.2’N, 53°07.4’W, 50 m, 30 Jul 2014 GoogleMaps ; 1-lv, 22.1 mm (IM-2013-56567), GUYANE sta. CP 4384, 05°51’N, 52°30’W, 50–51 m; 1-lv, 23.5 mm, GUYANE sta. CP 4385, 05°45.5’N, 52°31.4’W, 48 m, 0 5 Aug 2014 GoogleMaps ; 3-lv, 31.0, 32.2 (IM-2013-56597) and 36.5 mm (IM-2013-56598), GUYANE sta. CP 4386, 05°38.4’N, 52°20.2’W, 46–47 m, 0 5 Aug 2013 GoogleMaps ; 4-lv, 44.2, 44.1, 39.5 and 21.3 mm, 1-dd, 46.8 mm, GUYANE sta. CP 4402, 06°18’N, 52°13.3’W, 95–97 m, 0 8 Aug 2014 GoogleMaps ; 1-lv, 36.3 mm (IM-2013-56853), GUYANE sta. CP 4408, 05°37’N, 52°10’W, 57 m; 1-lv, 29.3mm, 1-dd, 42.4 mm (IM-2012-20356), GUYANE sta. SR-23 (Île Saint-Joseph), 05°16.8’N, 52°34.9’W, 6–10 m, 0 4 Oct 2014 GoogleMaps ; 1-lv, 14.0 mm, G0 sta. 3, 05°00.9’N, 51°81.1’W, 60 m, 16 Apr 1999; 1-dd, 35.4 mm, G0 sta. 11. 05°12.8’N, 51°17.4’W, 66–70 m, 18 Apr 1999; 3-dd, 41.0, 45.7 and 52.9 mm, G0 sta. 17, 05°06.3’N, 51°43.7’W, 70 m, 19 Apr 1999; 2-dd, 37.3 and 42.. 6 mm, “Guyane Française,” 60–80 m, 1998, DL; 1-dd, 39.3 mm, off French Guiana , 60 m, 2000, ANSP 465700 View Materials ; 1-dd, 41.3 mm, off French Guiana , 2002, 60– 80 m, ANSP 465701 View Materials . Barbados —1-dd, 45.4 mm, off Barbados , 1986, ANSP 465699 View Materials . Venezuela —1-lv, 61.3 mm, Isla Morro Pelotas, 25.9 m, Aug 1993 , LC. Trinidad and Tobago —1-lv, 64.6 mm, Chacachacare Island , Trinidad, 7.9 m, 4/1997, LC; 2-lv, 64.4 and 43.4 mm, off Crown Point, Tobago, 29.0 m, 6/1995, LC; 1-lv, 51.8 mm, Pigeon Point, Tobago, 21.3–24.4 m, LC; 1-lv, 42.2 mm, Store Bay, Tobago, 29.3 m, 1/1999, LC; 1-lv, 70.2 mm, Store Bay, 14.0 m, 2/1999, LC; 1-lv, 39.8 mm, Tobago, 24.4 m, 1995, LC .

Remarks. Polygona bernadensis , the most frequently encountered peristerniine in GUYANE collections, was represented by 18 specimens from eight stations, depth range 6–118 m; another 5 specimens from three stations were present in the GREEN 0 material. The latter were collected in depths of 60–80 m, as were four others we examined from French Guiana. The French Guiana specimens ranged in size from 14.0 to 52.9 mm, all smaller than some shells (61.3–70.2 mm) we examined from Trinidad, Tobago and Venezuela.

Specimens of P. bernadensis from French Guiana are morphologically variable, some having slender shells with relatively tall spires and others with somewhat shorter spires and more swollen body whorls. Most, however, are good matches for the figured holotype ( Bullock 1974: fig. 13), and the variant shells merge with more typical specimens, prompting us to treat them as a single species. Mallard and Robin (2005; 2017) and Massemin et al. (2009) figured as Latirus bernadensis an unusual shell from French Guiana; its size was cited as 56.4 mm in the first report, 56.8 mm in the second report and 56 mm in the last. The shell differs from typical P. bernadensis by having a relatively shorter, broader siphonal process and more rounded spire whorls; axial ribs are broader, more numerous and, as a consequence, more closely spaced, with narrower intercostal areas; spiral cords are larger, more numerous, and separated by single smaller cords or threads; and cords crossing intercostal areas are more prominent and abundant. We were unable to locate this specimen, but we suspect that it represents an extreme within a continuum of morphological variability within the species.

Some authors (e.g. Rios 1985, 1994, 2009; Díaz & Puyana 1994; Daccarett & Bossio 2011) have treated Polygona bernadensis as a junior synonym of P. infundibulum , but P. bernadensis differs from P. infundibulum by having a relatively stouter shell with broader axial ribs and without contrasting brown on the stronger spiral cords ( Bullock 1974: 77). Most reports of P. infundibulum from the Guianas (e.g. Okutani 1983) and northern Brazil seem to have been errors for P. bernadensis but some may be errors for P. lactea ( Matthews-Cascon, et al. 1991) (discussed later).

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Neogastropoda

Family

Fasciolariidae

Genus

Polygona

Loc

Polygona bernadensis ( Bullock, 1974 )

Lyons, William G. & Snyder, Martin Avery 2019
2019
Loc

Polygona bernadensis: Vermeij & Snyder, 2006 : 418

Mallard, D. & Robin, A. 2017: 270
Vermeij, G. J. & Snyder, M. A. 2006: 418
2006
Loc

Lathyrus infundibulum: de Oliveira et al., 1981 : 215

de Oliveira, M. P. & Rezende, G. de & Castro, G. A. de 1981: 215
1981
Loc

Latirus bernadensis:

Daccarett, E. Y. & Bossio, V. S. 2011: 101
Massemin, D. & Lamy, D. & Pointier, J-P. & Gargominy, O. 2009: 153
Rios, E. de 2009: 252
Sunderland, K. & Sunderland, L. 1996: 16
Diaz, J. M. & Puyana, M. 1994: 196
Rios, E. de 1994: 133
Lyons, W. G. 1991: 200
Matthews-Cascon, H & Matthews, H. R. & Rocha, C. de 1991: 1
Petuch, E. J. 1987: 90
Rios, E. de 1985: 107
Petuch, E. J. 1979: 520
1979
Loc

Latirus brevicaudatus: Altena, 1975 : 55 ( Suriname )

Altena, C. O. van 1975: 55
1975
Loc

Latirus (Polygona) infundibulum:

Rios, E. de 1994: 133
Rios, E. de 1985: 106
Rios, E. de 1975: 104
1975
Loc

Latirus (Polygona) bernadensis

Rios, E. de 2009: 252
Snyder, M. A. 2003: 49
Lyons, W. G. 1991: 198
Rios, E. de 1975: 104
Bullock, R. C. 1974: 72
1974
Loc

Latirus infundibulum: Horst & Schepman, 1894 : 93

Rios, E. de 2009: 252
Massemin, D. & Massemin, Y. & Lamy, D. 2000: 21
Capelo, J. C. & Buitrago, J. 1998: 132
Diaz, J. M. 1995: 118
Lyons, W. G. 1991: 201
Matthews-Cascon, H & Matthews, H. R. & Rocha, C. de 1991: 1
Altena, C. O. van 1975: 55
Rios, E. de 1970: 96
Altena, C. O. van 1969: 12
Kempf, M. & Matthews, H. R. 1968: 93
Horst, R. & Schepman, M. M. 1894: 93
1894
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