Profundulus (Hubbs, 1924)
Studies of the fishes of the order Cyprinodontes. Miscellaneous Publications, Museum of Zoology, University of Michigan No. 13: 1-31, Pls. 1-4.
Type-species: by original designation as Fundulus punctatus Günther, 1866.
Type locality: Chiapam (near Champerico, subseq.), Guatemala
Profundulus balsanus Ahl, 1935
Ueber eine Fischsammlung aus Mexico. Sitz. Gesell. Naturf. Freunde, Berlin, (1935): 108.
Type locality: Malinaltepec, río Balsas basin (Papagayo river basin), Guerrero, Mexico.
Profundulus candalarius (Hubbs, 1924)
Studies of the Fishes of the Order Cyprinodontes. Misc. Papers Mus. Zool. Univ. Michigan, 13: 15.
Type locality: Candalaria, near the Mexican boundary of Guatemala, 6 leagues distant from (ca. 18 airline km north north west of) Nenton, Guatemala, altitude 1100 m.
Profundulus guatemalensis (Günther, 1866)
Catalog of Fishes in the British Museum. British Museum, London., 6: 321.
Type locality: rio Guacalate (probably close to Duenas, 8 km southwest of Antigua, subseq. ; also lake Duenas), Pacific drainage, Guatemala [and Ecuador (erroneous)].
Profundulus hildebrandi (Miller, 1950)
Profundulus hildebrandi, a new Cyprinodontid Fish from Chiapas, Mexico. Copeia: 22, pl. 1.
Type locality: lake Maria Eugenia, San Cristóbal de las Casas, Atlantic drainage of Chiapas, Mexico, 2200 m altitude (today dried out).
Profundulus kreiseri Matamoros et al., 2012
Profundulus kreiseri, a new species of Profundulidae (Teleostei, Cyprinodontiformes) from northwestern Honduras
Profundulus labialis (Günther, 1866)
Catalog of Fishes in the British Museum. British Museum, London., 6: 319.
Type locality: río San Geronimo (today rio San Jeronimo, at San Jeronimo city, subseq.) (also Ysabal, lake Ysabal and "Guatemala" at rio Negro or rio Chixoy), Guatemala.
Profundulus mixtlanensis (Ornelas-García, Martinez-Ramírez & Doadrio 2015)
A new species of killifish of the family Profundulidae from the highlands of the Mixteca region, Mexico. Revista Mexicana de Biodiversidad v. 86 (no. 4): 926-933.
Abstract: The family Profundulidae is one of the few families of freshwater fishes endemic to the Mesoamerican region. It includes the genus Profundulus that has been divided into two subgenera, Profundulus, with a wider distribution and Tlaloc, which presents a more limited range. The species currently recognized within the subgenus Profundulus are P. punctatus, P. oaxacae, P. guatemalensis and P. kreiseri. Results from a previous study using allozymes revealed a high degree of molecular differentiation of the populations inhabiting the Mixteca region (located at the north of Oaxaca in Mexico), compared to the rest of the species in the genus, especially regarding its geographically nearest neighbor (P. oaxacae). The main goal of this study was to evaluate the morphological distinctiveness and to assess the taxonomic identity of the populations from the Mixteca region in comparison with the morphological variation of P. oaxacae. Based on 22 measurements (17 morphometric and 5 meristic), we examined the morphological variation within and among species, including 50 individuals from 5 localities. Our results show a high degree of morphological differentiation between both populations in accordance to the molecular information reported before, supporting that populations from the Mixteca region are a new taxonomic entity, which is described in the present study.
Profundulus oaxacae (Meek, 1902)
A Contribution to the Ichthyology of Mexico. Field Columbian Mus. Zool. Ser. (Chicago Nat. Hist. Mus. Fieldiana Zool.) Publication, 3 (6): 90, pl. 20.
Type locality: río Verde at Oaxaca (today Oaxaca de Juarez), (Atoyac-Verde rivers basin, Oaxaca state) southern Mexico.
Profundulus parentiae (Matamoros, Dominguez, Velazquez & McMahan, 2018)
Copeia, 106 (2): 239-246
The Middle American killifish genus Profundulus occurs in most Pacific and Atlantic drainages from the Mexican state of Guerrero to the Chamelecón River in Honduras, with highest species diversity in southern Mexico. In this study, we describe a new member of the genus, Profundulus parentiae, new species, from the Mexican state of Oaxaca. It is distinguished from P. guatemalensis and P. kreiseri by having rows of dots on the sides of the body. Profundulus parentiae, new species, can be distinguished from P. oaxacae by having 33 lateral scales, versus 29–31 in P. oaxacae. Profundulus parentiae, new species, can be distinguished from P. balsanus, P. oaxacae, and P. mixtlanensis by the presence of long epiotic processes that extend beyond the epipleural ribs of the first vertebra, versus short epiotic processes not reaching the epipleural ribs of the first vertebra. Profundulus parentiae, new species, can be differentiated from P. punctatus by the presence of a dorso-ventrally compressed Meckel's cartilage with a relatively straight medial process and a narrow and strongly concave sesamoid articular, versus a dorso-ventrally expanded Meckel's cartilage with concave medial process and a wide and moderately concave sesamoid articular. Based on the phylogenetic analysis of molecular sequence data, the new species is recovered as the sister taxon to P. balsanus. The discovery and description of this new species in southeastern Mexico, raises the number of species from this region to five and suggests that this area has been an important center for diversification within this lineage of killifishes.
Profundulus portillorum Matamoros & Schaefer, 2010
A new species of Profundulus (Cyprinodontiformes: Profundulidae) from the Honduran central highlands. Journal of Fish Biology v. 76 (no. 6): 1498-1507.
Abstract: A new species of Profundulus, Profundulus portillorum, from the Honduran central highlands is described. Profundulus portillorum belongs to the Profundulus labialis species group and is distinct from the Profundulus punctatus species group in that it lacks a humeral spot and less than half of the caudal fin is scaled. Within the P. labialis species group, P. portillorum has a more slender body, smaller eye, fewer anal rays, caudal rays and lateral-line scales than other species. Forty-one specimens were collected around emergent vegetation in the margins of two small (2-5 m in width, 20-40 cm in depth), high-elevation (1300 m) tributaries of the Río Calam within the Río Ulúa drainage. These specimens represent the easternmost collection of any Profundulus and the first collection of any member of the P. labialis species group from Honduras.
Profundulus punctatus (Günther, 1866)
Catalog of Fishes in the British Museum. British Museum, London., 6: 320.
Type locality: Chiapam (near Champerico, subseq.), Guatemala.