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Drymaeus flexuosus Pfeiffer, 1852

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Obrázky

Drymaeus flexuosus

Autor: Breure, A. & Borrero, F.

Drymaeus flexuosus

Autor: Abbott, R.T.

Taxon v check-listech zemí*

* Výčet zemí nemusí být kompletní

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Rozšíření

Material. Antioquia, Tamesis, Hno. D. Gonzalez leg. (MLS-BOG 609 [partim]); Ibidem, ex Colegio de San Jose (RMNH n.c); Puerto Nare, 300 m, L. Richter leg. (MCZ 146360); Sonson, Hno. Daniel (USNM 517846); Jerico, 15.iii.1980 (UVZ 8161); Caldas, Marmato, T. Bland leg., ex Swift (ANSP 25755; DMNH 25595); Ibidem, Bland leg., ex Amherst College (MCZ 146106); Ibidem, ex Richardson (DMNH 67690); Valley of Magdalena river, 1200 m, Richter leg. (MCZ 145208); Ibidem, UF 109239 [not seen]); Chinchina, Vereda La Esmeralda, Embalse San Francisco, Bosque La Esmeralda, 1023 m, J. Martinez leg. (UVZ n.c); Cauca, Coconuco, xii.2015 (FEM 173423); near Santander de Quilichao, piedmont of Cerro La Chapa,, 1700 m, F.]. Borrero leg., l.viii.2009 (USDA 144837-144838); "Quilachao", ex McAndrew (NHMUK n.c); Ibidem (UF 109238,161244); Puerto Tejada (UVZ 81239 [not seen]) (Restrepo et al 1983, as D. rugistriatus Haas); "Cauca", F. Bonis leg. (ANSP 91230); Quindio, Salento, vi.2014 (FEM 153595,154855,154857); Risaralda, Santuario, in coffee plantation, 1300-1400 m, J. Pineda leg., iv.2007 (GK); Santa Rosa de Cabal, Parque Los Nevados, Finca La Miranda, 0. Rangel leg., 20.vi.1980 (ICNB 0109); Pereira, ex Bequaert (MCZ 113837); Ibidem (RB1NS 613297); Tolima San Juan de las Hermosas, xi.2014 (FEM 153554); La Tigrera, Valle (JMR); Valle del Cauca, La Cumbre, Finca La Esmeralda, on live fence, 1591 m, Borrero leg., 12.viii.2007 (USDA 144830); Ver. El Topacio, Pance, 1700 m, F. Montoya leg., 2008 (USDA 144834); Ibidem, Montoya leg., 15.L2007 (USDA 144835); Ibidem, Montoya leg. iii.2007 (USDA 144836); Pance, 1676 m, H. Montoya leg., 3.ii.2011 (UVZ n.c); Ver. El Topacio, Pance, Borrero leg. 18.vii.2005,1550 m (USDA 144839); SW of EI Aguila, between La Linea and El Granero, 1901 m, Borrero and T. Pearce leg., 20.vii.2010 (USDA 144840); 1.4 km NW Lago Calima, 1458 m, viii.2011 (USDA 144841); Jamundi, Hacienda "El Castillo", 1000 m, Borrero leg., 8.X.1979 (RMNH n.c, UVZ 82054); Ibidem, xii.1979 (UVZ 8164) (last two localities: Restrepo et al 1983, misidentified as D. rugistriatus Haas); 3 km W Atuncela, 4500 ft. [-1370 m], F.G. Thompson leg., 1969 (UF 176885 [not seen]); Rio La Paila valley, 1300 m, H. Pittier leg., i.1906 (USNM 251163); 20 kms above Trujillo, Vereda La Debora, 4.8 kms above Venecia, 2050 m, P. Silverston leg., 6.iii.l981 (UVZ 82047); Paso de la Bolsa, Rio Cauca margin, 1000 m, R. Neira leg., 28.V.1982 (UVZ 82152); Calima-Darien, Finca Las Carmelitas, 1 km from Lago Calima, trail to Campo Alegre, 1600 m, E. Velasco leg., 20.xi.1982 (UVZ 82271); Sevilla, road Barragan-Sevilla, Hacienda Cristales, 2100 m, V. Rojas leg., 13-20.L1999 (UVZ 99106); ; near Zarzal, Hacienda El Medio, 950 m, 21.iii.2005 (UVZ n.c). ?, New Granada, ex Dohrn (MCZ n.c); Colombia (NHMUK 1895.6.29.2-3, 1907.8.29.13-17 [partim]); Ibidem, ex Webb (FMNH 31482); U.S. Colombia, ex Evezard ex Henderson (USNM 316129 [partim]); Bogota, ex Biggs (NHMUK n.c); Ibidem, ex Chamberlain ex Fulton (USNM 530510).
Altitudinal range. From the data above, the range is 300-1900 m; most records are from 1000 m and above. LINARES & VERA (2012) gave a range to 2600 m, based partly on misidentified material.
Ecology. The localities where this species is recorded are predominantly in the dry and moist forests ecoregions of Cauca and Magdalena Valley. Found alive on tree trunks (UVZ 8161), and in a seasonally flooded, mixed hardwood/bamboo forest, on Ficus trees, between 1-5 m from the ground (UVZ 82054); see also OREJUELA 1979.
Remarks. Another species which shows substantial variation in colour, specifically the extend of lateral extensions of axial dark stripes (i.e., zigzag pattern), which give the appearance of interrupted concentric bands; most specimens have a noticeable dark colour band just behind the umbilicus, although this feature is also present in other taxa. Body colouration beige, slightly lighter from the fringe of the foot, towards the sole; last third of eyestalks slightly darker, with a brownish hue. There appear to be a number of populations in the southern part of Valle del Cauca (i.e., Pance, Jamundi) and parts of Cauca (i.e., near Santander de Quilichao) with shorter spired specimens, which we tentatively refer to as this species. Material from Coconuco is without white dots but also tentatively identified as this species. Finally, the specimens from the MacAndrew collection in NHMUK and lot USNM 517846 are tentatively referred to as this species, given their difference in overall shape (lower height/diameter ratio). A lot from Cucuta (FEM 46920) is not included as it needs further corroboration.
Breure, A. & Borrero, F., 2019. A review of Stenostylus Pilsbry, 1898 and Drymaeus Albers, 1850 (Mollusca Gastropoda Orthalicoidea Bulimulidae) from Colombia

Odkazy a literatura

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [jako Drymaeus flexuosus Pfeiffer, 1852]
Datum citace: 23. listopad 2013

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