MUSSELpdb

Taxonomy

Data last updated
Mon 2 March 2026

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

Widely distributed in Pacific drainages from Mexico, Guatemala, and Nicaragua to Panama. (Central America: CA1)

specimens map of Nephronaias caldwellii

MNHN_MP_1330
Rio Naranjo, Guatemala

SMF_83308
Rio Puca, Costa Grande, Retahuleu, West Guatemala

ZMB_47544
Rio Puca, Retaluleu, Guatemala

MCZ_6592 Nicaragua	ANSP_129946 Nicaragua	AMNH_35565 Nicaragua
MCZ_MP_300_01 Nicaragua	MCZ_16344 Nicaragua	ANSP_125620 Nicaragua
ANSP_125619 Rio San Antonio, near Chinendaga, Nicaragua	MCZ_MP_275 stream from Volcano Veijo at Hacienda San Antonio 1 league [3 mi] SE Chinandega, Chinandega State, Nicaragua

FMNH_73370 Bayano River, above Chepo, Panama Prov., Panama	FMNH_110180 Bayano River, El Llano, Panama Prov., Panama	USNM_536560 Bayano River, near Acanti, Panama
USNM_536560 Bayano River, near Acanti, Panama	ANSP_161833 Bayano River, Pintupo, Darien, Rep. Panama	FMNH_63537 Bayano River, Pintupo, Darrien, Panama
UMMZ_107957 Chimaugua River, Isthmus of Darien, Panama	MCZ_293266 Chucunaque River, Isthmus of Darien, Panama	USNM_84385 Chumnagua R., Isth. of Darien
USNM_84385 Chumnagua R., Isth. of Darien	AMNH_179584 Darien, Canal Zone, Panama	USNM_513600 Isla de Coiba, Panama
USNM_84396 Isthmus of Darien	USNM_84396 Isthmus of Darien	NCSM_6243 North America, Golfo de San miguel asin/ Rio Chucunaque/ Rio Membrillo Panama, Darién, Rio Membrillo (Rio Chucunaque-Rio Turia drainage), ca 5km, upstream Siani
USNM_424421 Republic of Panama	ANSP_243690 Rio Banayo at El Llano, 15 mi fr. Chepo, Republic of Panama	ANSP_162482 Rio Bayano just below El Llano, Panama
USNM_361760 Rio Chucunaque, above Rio Chiati, Panama	USNM_361760 Rio Chucunaque, above Rio Chiati, Panama	INHS_21691 Rio Membrillo, ca. 5 km upstream Sinai, Darien, Panama
AMS_140904 Rio Turia, Boca de Cupe, Darien Prov., Panama