An annotated checklist of the land snail family Orthalicidae (Gastropoda: Pulmonata: Orthalicoidea) in Ecuador, with notes on the distribution of the mainland species
Author
Breure, Abraham S. H.
Author
Borrero, Francisco J.
text
Zootaxa
2008
1768
1
40
journal article
10.5281/zenodo.274265
fcf6c4eb-75e1-45f1-921c-2cbeb8127dc0
1175-5326
274265
Genus
Drymaeus
Albers, 1850
Subgenus
Drymaeus (Drymaeus)
Albers, 1850
Type
species:
Helix hygrohylaea
d’Orbigny, 1835
. Distribution:
Venezuela
,
Brazil
,
Uruguay
,
Argentina
,
Bolivia
,
Peru
,
Ecuador
,
Colombia
,
Panama
,
Costa Rica
,
Nicaragua
,
Honduras
,
Guatemala
,
Mexico
.
104.
Drymaeus (Drymaeus) aequatorianus
(E.A. Smith, 1877)
Type
locality:
Ecuador
.
Lectotype
BMNH
1975137 (
Breure 1979
).
Distribution:
Carchi,
1,5 hour walk W Chical (
FLMNH
26617)*; San Nicolás (
FMNH
31409). “
Ecuador
” (
ANSP
25752, 78535;
BMNH
1975137/1
paralectotype
;
ZMZ
512312).
Remarks: These are the first exact localities reported for this species.
105.
Drymaeus (Drymaeus) albolabiatus
(E.A. Smith, 1877)
Type
locality: Malacatos.
Holotype
BMNH
1877.3.28.3.
Distribution:
Loja
, Malacatos. “Oriente Prov.” (
FMNH
72339).
106.
Drymaeus (Drymaeus) ambustus
(Reeve, 1849)
Type
locality: No locality given.
Syntypes
BMNH
1975441, 1975442; labelled “between Tucunga and Ambato”.
Bulimus chamaeleon
Pfeiffer, 1855
is considered a junior synonym (
Syntypes
BMNH
1975443; labelled as “near Quito”).
Distribution:
Pichincha
, Pomasqui (
FLMNH
176052)*;
3 km
NE Cayambe (
FLMNH
37397)*;
Cotopaxi/Tungurahua
: between Jacunga [Latacunga] and Ambato (
BMNH
1975441, 1975442). “Quito” (
CMC
C11760;
FMNH
31480, 61126;
ZMA
). “
Ecuador
” (
ZMA
).
107.
Drymaeus (Drymaeus) andai
(Jousseaume, 1898)
Type
locality: Tena.
Lectotype
MNHN
(designated and figured by
Breure 1976
). Distribution:
Napo
, Tena (
MNHN
).
108.
Drymaeus (Drymaeus) baezensis
(Hidalgo, 1869)
Type
locality: Baeza.
Distribution:
Napo
, Baeza. Without locality (
RMNH
).
109.
Drymaeus (Drymaeus) bourcieri
(Pfeiffer, 1853)
Type
locality: Pichincha.
Lectotype
BMNH
1975446 (
Breure 1979
).
Distribution:
Pichincha
[no specific locality] (
BMNH
1975447/1
paralectotype
);
Tungurahua
, Chaupi (
FMNH
72599). “
Ecuador
” (
ANSP
5249;
RMNH
;
ZMA
;
ZMZ
512161).
Remarks: This is the first precise locality for this species.
110.
Drymaeus (Drymaeus) buckleyi
(Sowerby, 1895)
Type
locality:
Ecuador
.
Lectotype
BMNH
1907.11.21.48 (designated, redescribed and figured by
Breure & Eskens 1981
).
Distribution:
?
[no specific locality known]. “
Ecuador
” (
BMNH
1907.11.21.49-50/2
paralectotypes
).
111.
Drymaeus (Drymaeus) chimborasensis
(Reeve, 1848)
Type
locality: Chimborazo.
Syntypes
BMNH
1975460.
Distribution:
Chimborazo
[probably on the slopes of Mt. Chimborazo, which could also be in provs. Bolívar or Tungurahua].
112.
Drymaeus (Drymaeus) decoratus
(Lea, 1838)
Type
locality:
Colombia
, near Carthagena.
Distribution:
Napo
, Llanganate [Cordillera de Llanganatis] (
NRS
).
113.
Drymaeus (Drymaeus) elegantissimus
(Mousson, 1873)
**
Type
locality: Northern part of South
America
.
Distribution:
Morona-Santiago
, Cusuimi (
FMNH
173042, 173043)*. Remarks: This is the first Ecuadorian locality for this species, which has been reported from
Colombia
(Pilsbry 1899: 211).
114.
Drymaeus (Drymaeus) expansus
(Pfeiffer, 1848)
Type
locality:
Peru
, Huallaga.
Distribution:
Tungurahua
, Topo (
ANSP
306773)*. “
Ecuador
” (
ZMZ
511962).
Drymaeus (Drymaeus) expansus altorum
(
Weyrauch, 1958
)
Type
locality:
Peru
, Río Chanchamayo, Quirimi Sur, above Puente Herreria.
Holotype
SMF
156295.
Distribution:
Morona-Santiago
, Cusuimi (
FMNH
173050)*.
Drymaeus (Drymaeus) expansus orcesi
(
Weyrauch, 1958
)
Type
locality: Montalvo, Río Bobonaza,
340 m
.
Holotype
SMF
156292 (refigured by
Neubert & Janssen 2004
).
Distribution:
Napo
, Sarayacu;
Orellana
, Loreto;
Pastaza
, Montalvo (all
Weyrauch 1958
).
115.
Drymaeus (Drymaeus) fallax
(Pfeiffer, 1853)
Type
locality: Tungurahua.
Bulimus abscissu
s Pfeiffer, 1855 is now considered a junior synonym
(syn. nov.)
. The
type
material is labelled “Quito” (ex Cuming collection,
BMNH
1969142).
Distribution:
Pastaza
, Puyo (
ANSP
170713
);
Pichincha
, Quito (
ANSP
5247;
ZMZ
512145;
ZMZ
512413, as
Bulimus abscissus
Pfeiffer
), Nono [Mitad del Mundo] (
CMNH
86212); near Nanegal (
ANSP
195213;
ZMB
); Santo
Domingo
de los Colorados (
ANSP
306782)* (
FMNH
85376). “
Ecuador
” (
MCZ
227645).
Remarks: There are two places called Puyo, one is in Azuay province at
2850 m
altitude, the other is in Pastaza province at
1000 m
. Given the
type
locality and the altitudinal range of the other localities (up to
1500 m
), it is probable that the Pastaza locality is meant, rather than the centrally located Puyo in Azuay province.
116.
Drymaeus (Drymaeus) fordii
Pilsbry, 1898
Type
locality: None given.
Lectotype
ANSP
72368a (
Breure 1979
).
Distribution:
Morona-Santiago
, Miasal;
Orellana
, Loreto (both according to
Weyrauch 1958
).
117.
Drymaeus (Drymaeus) fucatus
(Reeve, 1849)
Type
locality: [
Colombia
] Sebundoi.
Lectotype
BMNH
1874.12.11.224 (
Breure 1979
); labelled “
New Granada
”.
Distribution:
Pichincha
, near Nanegal (
ZMB
). “
Ecuador
” (
ZMZ
512131).
Remarks: Sebundoi, often referred to as an Ecuadorian locality, is most likely Sibundoy in
Colombia
, Department of Putumayo [
01° 11' 00" N
76° 55' 00" W
]. We have been unable to locate the other localities mentioned by Pilsbry (1898: 234): “Lumaco”; “near San Florencio and on the way to Manabe” [Manabí?].
118.?
Drymaeus (Drymaeus) fusoides
(d’Orbigny, 1835)
Type
locality:
Bolivia
, Dept. La Paz, Prov. Yungas.
Distribution:
?
[no specific locality known]. “Quito” (
ZMZ
512101). “
Ecuador
” (
ANSP
78538). Remarks: The occurrence of this Bolivian species remains to be corroborated.
119.
Drymaeus (Drymaeus) hidalgoi
(Da Costa, 1898)
Type
locality:
Ecuador
.
Holotype
BMNH
1907.11.21.28.
Distribution:
Napo
, Nachiyacu (
ANSP
170712
);
Pastaza
, Mera (
FMNH
125503, labelled as “Meva”). “
Ecuador
” (
BMNH
1907.11.21.29-30/2
paratypes
).
Remarks: These are the first exact localities for this species.
120.
Drymaeus (Drymaeus) inaequalis
(Pfeiffer, 1857)
Type
locality:
Peru
, banks of the Maranhon [Río Marañon]. Distribution:
Napo
, Nachiyacu (
ANSP
170711
).
121.
Drymaeus (Drymaeus) membielinus
(Crosse, 1867)
Type
locality:
Ecuador
.
Distribution:
Napo
(see Pilsbry 1898: 210);
Orellana
, Loreto (
Weyrauch 1958
). “
Ecuador
” (
ZMH
7269).
122.
Drymaeus (Drymaeus) murrinus
(Reeve, 1848)
Type
locality:
Colombia
, Bogotá.
Lectotype
BMNH
1975213 (
Breure 1979
). A synonym is
Bulimus convexus
Pfeiffer, 1855
(
type
locality:
New Granada
;
lectotype
BMNH
1975192, figured by
Breure & Eskens 1981
: Pl. 8 Fig. 7).
Distribution:
?
[no specific locality known]. “
Ecuador
” (
BMNH
,
type
of
Bulimus convexus
Pfeiffer
;
ZMZ
512156).
123.
Drymaeus (Drymaeus) nystianus
(Pfeiffer, 1853)
Type
locality:
Ecuador
.
Lectotype
BMNH
1975573 (
Breure 1979
).
Distribution:
Napo
, Cerro Antisana (
ANSP
186859;
FMNH
125506;
MCZ
193332);
Pichincha
, Pomasqui (
ANSP
25804;
BMNH
1975574/1
paralectotype
, labelled “Valley of Pomasqui”;
ZMA
); Machachi (
FLMNH
22973)*; Tumbaco (Pilsbry 1898: 263). “near Quito” (
ANSP
76001); “Quito” (
CMC
C11761;
FMNH
31326, 78753;
RMNH
;
ZMH
7271;
ZMZ
512148). “
Ecuador
” (
RMNH
;
ZMA
).
124.
Drymaeus (Drymaeus) ochrocheilus
(E.A. Smith, 1877)
Type
locality: Malacatos.
Holotype
BMNH
1877.3.28.4. Distribution:
Loja
, Malacatos.
125.
Drymaeus (Drymaeus) orthostomus
(E.A. Smith, 1877)
Type
locality:
Ecuador
.
Holotype
BMNH 1975132.
Distribution:
?
[no specific locality known]. “
Ecuador
” (BMNH 1975133/2
paratypes
; ZMZ 512105).
Remarks: This species is only known from the
type
material, a lot in the ZMZ (both with the imprecise locality) and a lot in FMNH without locality (FMNH 31469). E.A. Smith (1877) compared this species with
Drymaeus albolabiatus
, which is said to have a slightly different colour pattern and a somewhat smaller aperture. The two taxa may prove to be synonyms.
126.
Drymaeus (Drymaeus) peeliii
(Reeve, 1859)
Type
locality: Peruvian side of Amazonas.
Distribution:
Pastaza
, Canelos (Pilsbry 1898: 205). “
Ecuador
” (FMNH 77540; ZMZ 512573).
127.
Drymaeus (Drymaeus) petasites
(
Miller, 1878
)
Type
locality: Nanegal, Sebondoi, Pilatón valley.
Distribution:
Los Rios
,
35 mi
E of Quevedo (FMNH 106260)*;
Pichincha
, Nanegal; valley of Río Pilatón;
?
, “Los Puentes” (FMNH 31083). “
Ecuador
” (ZMA).
Remarks: As the
type
locality as given by
Miller (1878)
is a mixture of localities from
Ecuador
and
Colombia
[see also the remarks under
Drymaeus (D.) fucatus
], it is here restricted to Nanegal.
128.
Drymaeus (Drymaeus) planibasis
Pilsbry, 1932
Type
locality: above Chunchi, Pagma forest.
Holotype
ANSP 148436a. Distribution:
Chimborazo
, Chunchi (ANSP).
129.
Drymaeus (Drymaeus) quadrifasciatus
(Angas, 1878)
Type
locality:
Ecuador
.
Lectotype
BMNH 1879.1.21.3.
Bulimus napo
Angas, 1878
(
type
locality:
Ecuador
.
Holotype
BMNH 1879.1.21.4) is considered a junior synonym by
Weyrauch (1958: 128)
. Distribution:
Pichincha
, Nanegal (EPN, according to
Weyrauch 1958
);
Tungurahua
, Cerro Tungurahua near Baños (FMNH 72597).
130.
Drymaeus (Drymaeus) rabuti
(Jousseaume, 1898)
Type
locality: Tena.
Lectotype
MNHN (designated and figured by
Breure 1976
). Distribution:
Napo
, Tena.
131.
Drymaeus (Drymaeus) rhoadsi
Pilsbry, 1932
Type
locality: Pachijal.
Holotype
ANSP 148440. Distribution:
Pichincha
, Río Pachijal (ANSP).
132.
Drymaeus (Drymaeus) rubrovariegatus
(Higgins, 1868)
**
Type
locality:
Peru
, Huamachuco.
Syntypes
BMNH 1868.4.3.1.
Distribution:
El Oro
,
6 km
N Zaruma on road to Malvas (FLMNH 37402)*.
133.
Drymaeus (Drymaeus) sachsei
(Albers, 1854)
Type
locality:
Peru
, Río Marañon.
Lectotype
ZMB 10290a (designated and figured by
Köhler 2007
).
Distribution:
Chimborazo
, Huigra (FMNH 78757);
Loja
, Catamayo (
type
locality of the junior synonym
Mormus catamayensis
Miller, 1879); Loja (ZMH 9768). ”
Ecuador
” (ZMA).
134.?
Drymaeus (Drymaeus) scitulus
(Reeve, 1849)
**
Type
locality:
Peru
, Chachapoyas.
Lectotype
BMNH 1975217 (designated by
Breure & Eskens 1981
). Distribution:
?
[no specific locality known]. ”
Ecuador
” (FLMNH 109353, 109354). Remarks: The occurrence in
Ecuador
of this easily recognizable Peruvian species needs corroboration. If so, it may be expected in the southern part of the country.
135.
Drymaeus (Drymaeus) strigatus
(Sowerby, 1833)
Type
locality:
Peru
, Huallaga.
Distribution:
Morona-Santiago
, Cusuima (FMNH 173048). “
Ecuador
” (FMNH 77563; ZMZ 512121).
136.
Drymaeus (Drymaeus) subeffusus
(Philippi, 1869)
**
Type
locality:
Peru
, Huancayo, Coyllorbamba.
Distribution:
Loja
, Macará (FMNH 31317).
137.
Drymaeus (Drymaeus) tigrinus
(Da Costa, 1898)
Type
locality:
Ecuador
.
Holotype
BMNH 1907.11.21.55.
Distribution:
?
[no specific locality known].
Remarks: Pilsbry (1898: 231) suggests that this taxon may be a junior synonym of
Drymaeus strigatus
(Reeve, 1848)
, which occurs in northern
Peru
. If he is correct, this species might be expected to occur in southern
Ecuador
.
138.
Drymaeus (Drymaeus) violaceus
(Mousson, 1873)
Type
locality: In the northern part of South
America
.
Distribution:
Pichincha
, hill N of Tandapi, 71.7 km SW Quito on the road to Santo
Domingo
,
1600 m
(RMNH)*.
139.
Drymaeus (Drymaeus) volsus
Fulton, 1907
Type
locality:
Ecuador
.
Holotype
BMNH 1907.5.3.162. Distribution:
?
[no specific locality known]. “
Ecuador
” (BMNH). Remarks: Known from the
type
material only.
Subgenus
Drymaeus (Mesembrinus)
Albers, 1850
Type
species:
Helix virgulata
Férussac, 1821
. Distribution: West Indies,
Venezuela
,
Guiana
,
Surinam
, French
Guyana
,
Brazil
,
Peru
,
Ecuador
,
Colombia
,
Panama
,
Costa Rica
,
Nicaragua
,
El Salvador
,
Honduras
,
Guatemala
,
Belize
,
Mexico
,
USA
.
140.
Drymaeus (Mesembrinus) cactivorus
(Broderip, 1832)
Type
locality:
Colombia
“ad montem Chris”. A junior synonym is
Mormus occidentalis
Miller, 1879,
type
locality: Guyaquil.
Distribution:
Guayas
,
3 km
E Zapotal (FLMNH 139105)*;
11 km
W Progreso (FLMNH 139108)*.
Remarks: The
type
locality might be Cerro Montecristi in Manabí [
01° 03' 00" S
080° 40' 00" W
] instead of a place in
Colombia
, where this species has not been found so far. According to the GNS there are two places named Progreso in Guayas province [
01° 46' 00" S
079° 45' 00" W
and
01° 53' 00" S
079° 52' 00" W
respectively]. Given the record for Zapotal, it is most probably that a place named Gómes Rendón was meant for which the GNS lists as variant Progreso.
141.?
Drymaeus (Mesembrinus) fidustus
(Reeve, 1849)
Type
locality: [
Colombia
, Sibundoy].
Lectotype
BMNH 1975517 (
Breure 1979
).
Distribution:
?
[no specific locality known]. “New
Grenada
, Sebundoi” (BMNH 1975518/1
paralectotype
).
Remarks: This species is tentatively referred to
Ecuador
on the authority of
Miller (1878)
. The
type
locality is just across the border from northern
Ecuador
, in southwestern
Colombia
.
142.
Drymaeus (Mesembrinus) flavidulus
(E.A. Smith, 1877)
Type
locality: South
Ecuador
, Zarama.
Lectotype
BMNH 1975134.
Distribution:
El Oro
, “Zarama” [sic, Zaruma] (BMNH 1877.3.28.1/1
paralectotype
).
143.
Drymaeus (Mesembrinus) loxanus
(Higgins, 1872)
Type
locality: Loja.
Lectotype
BMNH 1975552.
Distribution:?
Loja
[no specific locality known]. “
New Granada
” (ZMB).
144.
Drymaeus (Mesembrinus) loxensis
(Pfeiffer, 1846)
Type
locality:
Ecuador
, El Catamaija prope Loxa.
Lectotype
BMNH 1975553 (Figured by
Breure & Eskens 1981
).
Distribution:
Loja
, Catamayo (BMNH 1975554/1
paralectotype
). “Quito” (ZMZ 512331). “
Ecuador
” (CMNH 42426).
145.?
Drymaeus (Mesembrinus) nigrofasciatus elongatulus
Pilsbry, 1898
Type
locality: Not given.
Distribution:
?
[no specific locality known]. “
Ecuador
” (ZMZ 512303, as
Thaumastus nigrofasciatus
“Reeve 1849
or Pfeiffer”).
Remarks: Pilsbry (1898: 308) mentions this subspecies from “Tequendano” on the authority of Strebel. We have been unable to locate this place in
Ecuador
. As this species is quite common around Bogotá, it is possible that Tequendama (W Bogotá) is meant.
146.?
Drymaeus (Mesembrinus) serenus
(Philippi, 1867)
**
Type
locality:
Peru
, Dept. Cajamarca, Hacienda Sunchubamba.
Distribution:
?
[no specific locality known]. “
Ecuador
” (FMNH 31279).
Remarks: The occurrence of this Peruvian species needs to be corroborated. It could possibly be expected in the southern part of the country.
147.
Drymaeus (Mesembrinus) subpellucidus
(E.A. Smith, 1877)
Type
locality:
Ecuador
.
Holotype
BMNH 1872.5.22.19. Distribution:
?
[no specific locality known].
148.
Drymaeus (Mesembrinus) wintlei
Finch, 1929
Type
locality:
Ecuador
.
Holotype
BMNH 1929.6.11.1. Distribution:
?
[no specific locality known].
Drymaeus
sp.
Carchi
,
2 km
E Maldonado,
1550 m
(FLMNH 26610)*;
Loja
, Loja (ZMH 9771) [labelled as
Drymaeus poecilus
(d’Orbigny)
, which is however a Bolivian species];
Napo
, 14.7 km NE Río Salado (FLMNH 22928)*;
Pichincha
, 9.5 km ESE Chiriboga (FLMNH 22942)*;
Tungaruhua
, Río Negro (MCZ 271635).