Clausiliidae
New taxa (23): Clausiliidae
23-07-2010 11:54
In the latest issue of
Archiv für Molluskenkunde, Hartmut Nordsieck has a
peper describing new species of Neniinae from Peru.
The material was collected by Jens and Crista Hemmen,
who made several trips in that country during the
past years. Also some additional material collected
by others has been reviewed.
New (sub)species are described from southern (Dept. Cuzco), central (Depts. Huancavelica, Pasco and Junín) and northern (Depts. Amazonas and San Martín) Peru.
The new taxa are listed here with the figure numbers between square brackets:
Columbinia (C.) elegans n.sp. [4], San Martín, Cueva de Diamantos near Naranjos (HT SMF 329319).
Columbinia (C.) elegantula n.sp. [5], San Martín,Cueva de Diamantos near Naranjos (HT SMF 329320).
Columbinia (C.) marcapatensis n.sp. [6], Cuzco, Huayumbe (HT SMF 132683).
Columbinia (Steatonenia) hemmeni n.sp. [7], Pasco, Valle Chacos near Oxapampa (HT 329377).
Parabalea bicolor undaticosta n.subsp. [8], Junín, km 36 road Jauja-Acolla-Tarma (HT SMF 330883).
Parabalea gibbosula grisea n.subsp. [10], Junín, km 23 road San pedro de Cajas-Acobamba (HT SMF 329373).
Parabalea latestriata queroensis n.subsp. [11], Junín, San José de Quero (HT SMF 329331).
Parabalea parcecostata meridionalis n.subsp. [12], Huancavelica, Acostambo (HT SMF 329360).
Peruinia peruana erythrostoma n.sp. [13], Pasco, km 2 road Pozuzo-Santa Rosa (HT SMF 330165).
Pseudogracilinenia pulchricosta n.sp., with P. p. pulchricosta n.subsp. [14], Pasco, 28 km Huancabamba-Pozuzo (HT SMF 330163) and P. p. lamellicosta n.subsp. [15], Pasco, km 11 Huancabamba-Pozuzo (HT SMF 330162).
Symptychiella (S.) bilamellata laevigata n.subsp. [21], San Martín, near Aguas Claras (HT SMF 329326).
Symptychiella (S.) bilamellata costulata n.subsp. [22], San Martín, Cueva Aguas Verde (HT SMF 333559).
Symptychiella (S.) bilamellata gracilicosta n.subsp. [23], San Martín, Cueva Huacharos de la Encanada (HT SMF 330877).
Symptychiella (S.) fratermajor n.sp. [24], San Martín, near Aguas Claras (HT SMF 329324).
Symptychiella (S.) acuminata n.sp. [25], San Martín, path Nueva Cajamarca to Cerro Mirador (HT SMF 330878).
Incaglaia (I.) angrandi variegata n.subsp. [18], Cuzco, near Aguas Calientes (HT SMF 329364).
Incaglaia (I.) angrandi soukupi n.subsp. [19], Cuzco, Chaupimayo (HT IML 1052).
Neniella macrosoma n.sp. [20], Amazonas, km 13 road Balsas-Leimebamba (HT SMF 329317).
Reference:
Nordsieck, H., 2010. New taxa of the subfamilies Neniinae and Garnieriinae (Gastropoda: Stylommatophora: Clausiliidae). - Archiv für Molluskenkunde 139: 45-69.
New (sub)species are described from southern (Dept. Cuzco), central (Depts. Huancavelica, Pasco and Junín) and northern (Depts. Amazonas and San Martín) Peru.
The new taxa are listed here with the figure numbers between square brackets:
Columbinia (C.) elegans n.sp. [4], San Martín, Cueva de Diamantos near Naranjos (HT SMF 329319).
Columbinia (C.) elegantula n.sp. [5], San Martín,Cueva de Diamantos near Naranjos (HT SMF 329320).
Columbinia (C.) marcapatensis n.sp. [6], Cuzco, Huayumbe (HT SMF 132683).
Columbinia (Steatonenia) hemmeni n.sp. [7], Pasco, Valle Chacos near Oxapampa (HT 329377).
Parabalea bicolor undaticosta n.subsp. [8], Junín, km 36 road Jauja-Acolla-Tarma (HT SMF 330883).
Parabalea gibbosula grisea n.subsp. [10], Junín, km 23 road San pedro de Cajas-Acobamba (HT SMF 329373).
Parabalea latestriata queroensis n.subsp. [11], Junín, San José de Quero (HT SMF 329331).
Parabalea parcecostata meridionalis n.subsp. [12], Huancavelica, Acostambo (HT SMF 329360).
Peruinia peruana erythrostoma n.sp. [13], Pasco, km 2 road Pozuzo-Santa Rosa (HT SMF 330165).
Pseudogracilinenia pulchricosta n.sp., with P. p. pulchricosta n.subsp. [14], Pasco, 28 km Huancabamba-Pozuzo (HT SMF 330163) and P. p. lamellicosta n.subsp. [15], Pasco, km 11 Huancabamba-Pozuzo (HT SMF 330162).
Symptychiella (S.) bilamellata laevigata n.subsp. [21], San Martín, near Aguas Claras (HT SMF 329326).
Symptychiella (S.) bilamellata costulata n.subsp. [22], San Martín, Cueva Aguas Verde (HT SMF 333559).
Symptychiella (S.) bilamellata gracilicosta n.subsp. [23], San Martín, Cueva Huacharos de la Encanada (HT SMF 330877).
Symptychiella (S.) fratermajor n.sp. [24], San Martín, near Aguas Claras (HT SMF 329324).
Symptychiella (S.) acuminata n.sp. [25], San Martín, path Nueva Cajamarca to Cerro Mirador (HT SMF 330878).
Incaglaia (I.) angrandi variegata n.subsp. [18], Cuzco, near Aguas Calientes (HT SMF 329364).
Incaglaia (I.) angrandi soukupi n.subsp. [19], Cuzco, Chaupimayo (HT IML 1052).
Neniella macrosoma n.sp. [20], Amazonas, km 13 road Balsas-Leimebamba (HT SMF 329317).
Reference:
Nordsieck, H., 2010. New taxa of the subfamilies Neniinae and Garnieriinae (Gastropoda: Stylommatophora: Clausiliidae). - Archiv für Molluskenkunde 139: 45-69.
Photo of the day (96): Pseudogracilinenia
07-05-2010 09:00
In the same area as in the previous post, at Cuevas de las Lechuzas, Pseudogracilinenia huallagana (Pilsbry, 1949) was collected by Valentín Mogollón and Grace Montalván.
Photo of the day (95): Peruinia
05-05-2010 08:52
This picture was made by Valentín Mogollón during his recent trip to Tingo María. It pictures Peruinia flachi tingomariae (Pilsbry, 1922), found at Microcuenca Las Pavas.
Photo of the day (58): Columbinia
10-08-2009 21:43
Today a picture of a clausiliid species, that Andrés
Quintero found while doing field work in Filandia,
Dept. Quindio, Colombia. It is
Columbinia
columbiana
(Polinski, 1924).
Thanks Andrés, for sharing this picture.
Thanks Andrés, for sharing this picture.
New taxa (8): Columbinia
13-01-2009 19:57
So far only orthalicid species are known from the
tepuis in Venezuelan Guayana. Fred Thompson just
described the first (but not the last?) Clausiliidae
from that region, collected during a very brief visit
to Cerro de la Neblina in 1984. This is the holotype
of
Columbinia
exul
sp.n. (UF 48631):
As the tepuis are geologically very old sandstone formations and there soils are acidic, they constitute special habitats to snails. Clausiliidae are more commonly found in more calcium-rich environments and the occurrence of this species on this isolated mountain is surely remarkable.
Conchologically, the species bears close resemblance to Neniops smithiae (Pilsbry, 1901), occurring in the isolated Sierra de Santa Marta, Colombia.
It is certainly possible that additional sampling on these tepuis will reveal other clausiliid species.
Reference
Thompson, F.G., 2008. The Clausiliid landsnail genus Columbinia in Venezuela, and the description of a new species. - Archiv für Molluskenkunde 137: 127-132.
As the tepuis are geologically very old sandstone formations and there soils are acidic, they constitute special habitats to snails. Clausiliidae are more commonly found in more calcium-rich environments and the occurrence of this species on this isolated mountain is surely remarkable.
Conchologically, the species bears close resemblance to Neniops smithiae (Pilsbry, 1901), occurring in the isolated Sierra de Santa Marta, Colombia.
It is certainly possible that additional sampling on these tepuis will reveal other clausiliid species.
Reference
Thompson, F.G., 2008. The Clausiliid landsnail genus Columbinia in Venezuela, and the description of a new species. - Archiv für Molluskenkunde 137: 127-132.