Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Nephronaias

species Nephronaias dysonii (Lea, 1859): specimens

2 available nominal species synonyms

Recent Taxonomic Opinions

Nephronaias dysonii — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Cummings et al. (2025)
Nephronaias sajensis — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021)

Range

Widespread from northern Belize, south to Guatemala and Honduras. (Central America: CA1)

Map of Georeferenced Specimens

specimens map of Nephronaias dysonii

MUSSELp Specimen Records

Type Specimens

image of lot UMMZ_108010
UMMZ_108010
Rio Saja, 5 mi W Esmeralda, Guatemala
lectotype
Elliptio sajensis Frierson, 1927

image of lot FMNH_68188
FMNH_68188
Rio Saja, 5 mi W Esmeralda, Guatemala
paralectotypes
Elliptio sajensis Frierson, 1927

image of lot INHS_21772
INHS_21772
Saja River, Esmeralda, Guatemala
paralectotypes
Elliptio sajensis Frierson, 1927

image of lot ANSP_145239
ANSP_145239
Rio Saja, 5 mi W Esmeralda, Guatemala
paralectotypes
Elliptio sajensis Frierson, 1927

BMNH_1965174. Honduras — holotype (monotypy) Unio dysonii Lea, 1859

Other Specimens by Country | show by collection

43 Specimens from Belize

image of lot UF_207820
UF_207820
Aguacate River [Moho River], 6.2 km S Blue Creek Village, Toledo District, Belize 16° 08.9’ N, 89° 00.9’ W

image of lot UF_207821
UF_207821
Aguacate River [Moho River], 6.2 km S Blue Creek Village, Toledo District, Belize 16° 08.9’ N, 89° 00.9’ W

image of lot INHS_36540
INHS_36540
Aguacate River, 19 mi WNW Punta Gorda, Toledo, Belize

image of lot INHS_36541
INHS_36541
Aguacate River, 19 mi WNW Punta Gorda, Toledo, Belize

image of lot INHS_27586
INHS_27586
Aguacate River, rm 25, NE Aguacate, Toledo, Belize

image of lot INHS_27987
INHS_27987
Aguacate River, rm 25, NE Aguacate, Toledo, Belize

image of lot FMNH_21860
FMNH_21860
Belize, British Honduras

image of lot UMMZ_60368
UMMZ_60368
Belize, British Honduras

image of lot UF_184065
UF_184065
Booths River, just upstream junct. with Rio Bravo, Orange Walk Dist., Belize

image of lot FMNH_120429
FMNH_120429
British Honduras

image of lot BMNH_89-12-7-19
BMNH_89-12-7-19
British Honduras

image of lot USNM_664687
USNM_664687
British Honduras

image of lot INHS_46386
INHS_46386
Central Belize

image of lot UF_243984
UF_243984
Chan Chich Creek (Rio Bravo), nr. Gallon Jug, nr. Chan Chich Lodge, Orange Walk District, Belize

image of lot UF_517939
UF_517939
Chan Chich Creek> Rio Bravo> Bahia de Chetumal Near Chan Chich Lodge near Gallon Jug Orange Walk District, Belize `18oN, ~87oW

image of lot UF_207299
UF_207299
creek, 16.6 km WSW Rancho Dolores, Orange Walk District, Belize 17° 30.5’ N, 88° 43.7’ W

image of lot UF_207303
UF_207303
creek, 16.6 km WSW Rancho Dolores, Orange Walk District, Belize 17° 30.5’ N, 88° 43.7’ W

image of lot INHS_46385
INHS_46385
creek, Pueblo Viejo, 38.3 km WNW Punta Gorda, Toledo District, Belize

image of lot MCZ_59651
MCZ_59651
Gongora River, British Honduras

image of lot UF_207626
UF_207626
Hickatee Creek, trib. of Rio Bravo, 5.7 km NE Big Falls Village, Toledo District, Belize 16° 17.7’ N, 88° 52.0’ W

image of lot UF_201624
UF_201624
Indian Creek, at S Hwy, 8.1 km NE Indian Cr. Village, Toledo District, Belize 16° 21.7’ N, 88° 48.0’ W

image of lot UF_207623
UF_207623
Indian Creek, at S Hwy, 8.1 km NE Indian Cr. Village, Toledo District, Belize 16° 21.7’ N, 88° 48.0’ W

image of lot UF_207624
UF_207624
Indian Creek, at S Hwy, 8.1 km NE Indian Cr. Village, Toledo District, Belize 16° 21.7’ N, 88° 48.0’ W

image of lot INHS_23097
INHS_23097
Macal River, 12 mi S Augustine, Cayo, Belize

image of lot USNM_382726
USNM_382726
Manatee River, British Honduras

image of lot UF_207726
UF_207726
Moho River, 1.3 km W Santa Anna, Toledo District, Belize 16° 05.9’ N, 88° 56.9’ W

image of lot FMNH_21864
FMNH_21864
Punta Gorda, British Honduras

image of lot FMNH_90080
FMNH_90080
Punta Gorda, British Honduras

image of lot FMNH_21861
FMNH_21861
Punta Gorda, British Honduras

image of lot UMMZ_60443
UMMZ_60443
Punta Gorda, British Honduras

image of lot UMMZ_57487
UMMZ_57487
Punta Gorda, British Honduras

image of lot UMMZ_57486
UMMZ_57486
Punta Gorda, British Honduras

image of lot UF_207222
UF_207222
Rio Bravo, Cedar Crossing, 21 km S Rio Bravo Research Station, Orange Walk Dist., Belize 17° 41.4’ N, 89° 02.0’ W

image of lot UF_207223
UF_207223
Rio Bravo, Cedar Crossing, 21 km S Rio Bravo Research Station, Orange Walk Dist., Belize 17° 41.4’ N, 89° 02.0’ W

image of lot UF_207283
UF_207283
Rio Bravo, Sylvesters Camp Orange Walk Dist., Belize 17° 35.5’ N, 89° 05.6’ W

image of lot UF_207284
UF_207284
Rio Bravo, Sylvesters Camp Orange Walk Dist., Belize 17° 35.5’ N, 89° 05.6’ W

image of lot UF_517940B
UF_517940B
Rio Bravo> Bahia de Chetumal Cedar Crossing on Gallon Jug Rd., Rio Bravo Cons. Area Orange Walk District, Belize ~18°N, ~87°W

image of lot UF_517940
UF_517940
Rio Bravo> Bahia de Chetumal Cedar Crossing on Gallon Jug Rd., Rio Bravo Cons. Area Orange Walk District, Belize ~18oN, ~87oW

image of lot UF_207629
UF_207629
Rio Grande, Big Falls, Toledo District, Belize 16° 15.3’ N, 88° 53.2’ W

image of lot UF_207913
UF_207913
Rio Grande, Big Falls, Toledo District, Belize 16° 15.3’ N, 88° 53.2’ W

image of lot USNM_150380
USNM_150380
small stream near Punta Gorda, Belize

image of lot USNM_193019
USNM_193019
Yaalback Cr., Cayo Distr., Honduras

image of lot BMNH_97-7-6-1-4
BMNH_97-7-6-1-4
Yalbac River, Western District, British Honduras

8 Specimens from Guatemala

image of lot MCZ_MP_271
MCZ_MP_271
Guatemala

image of lot NCSM_6244
NCSM_6244
North America, Guatemala, Rio Saja (Mullee River Dr.), 4-5 mi W of Esmeralda

image of lot MCZ_21169
MCZ_21169
Rio Saja, Nicaragua

image of lot MCZ_45420
MCZ_45420
Rio Saja, trib. to Rio Dulce, W of Esmeralda, Guatemala

image of lot MCZ_MP_287
MCZ_MP_287
Saja River (trib. to Dulce River) 4 or 5 mi W Esmeralda, Guatemala

image of lot INHS_21773
INHS_21773
Saja River (trib. to Dulce River) 4 or 5 mi W Esmeralda, Guatemala

image of lot ANSP_45419
ANSP_45419
Saja River, a trib of the Rio Dulce, Nicaragua

image of lot ZMB_MP_0508
ZMB_MP_0508
Tehuantepec, Coban, Vera Paz, Guatemala

18 Specimens from Honduras

image of lot UF_211977
UF_211977
2.6 km SW La Brea, Colon Department, Honduras 15° 45’ 39” N, 86° 00’ 08” W

image of lot ANSP_129445
ANSP_129445
Branch of Chamelecon River, Honduras

image of lot MCZ_MP_282
MCZ_MP_282
edge of Ulua River, Carozal, Honduras

image of lot MCZ_MP_270
MCZ_MP_270
Honduras

image of lot USNM_215593
USNM_215593
La Ceiba, Honduras

image of lot UF_22127
UF_22127
Quebrada Grande, 8.5 km W San Juan, Atlantida Department, Honduras

image of lot UF_194521
UF_194521
Rio Guayape, 10 km SE Catacamas, Olancho Dept., Honduras 14° 45’ 43” N, 85°, 53’ 07” W

image of lot UF_194522
UF_194522
Rio Guayape, 10 km SE Catacamas, Olancho Dept., Honduras 14° 45’ 43” N, 85°, 53’ 07” W

image of lot UF_221530
UF_221530
Rio Guayape, 11 km SSE Catacamas, Olancho Department, Honduras

image of lot UF_194524
UF_194524
Rio Guayape, 9 km ENE Juticalpa, Olancho Dept., Honduras 14° 43’ 11” N, 86°, 08’ 43” W

image of lot FMNH_29002
FMNH_29002
Rio Humuya, Comayagua, Honduras

image of lot MCZ_MP_290
MCZ_MP_290
Rio Humuya, Comayagua, Honduras

image of lot UF_194241
UF_194241
Rio Sulaco, branch of Cajon Reservior, Yoro Dept., Honduras 14° 01’ 11’ N, 87° 30’ 19” W

image of lot UF_270354
UF_270354
Rio Ulua, Honduras

image of lot UF_221378
UF_221378
small creek, Icoteas, ca. 17 km E Limon on road to Iriona, Colon Department, Honduras

image of lot UF_221379
UF_221379
small creek, Icoteas, ca. 17 km E Limon on road to Iriona, Colon Department, Honduras

image of lot HMC_1861_01
HMC_1861_01
unknown river> Caribbean Sea no specific site given, Honduras

image of lot HMC_1861_02
HMC_1861_02
unknown river> Caribbean Sea no specific site given, Honduras

1 Specimens from unknown

image of lot UMMZ_107976
UMMZ_107976
[no locality available - Central America]

GenBank Vouchers

There are no georeferenced GenBank vouchers for this species in the MUSSELpdb.