Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Pamphorichthys: Greek, pamphoros = fertile + Greek, ichthys = fish (Ref. 45335); pertapeh: The specific epithet, pertapeh, is an allusion to the type locality, “Lagoa Perta-pé”, which can be translated into “Squeeze-Foot Lake”. The name of the lake refers to the dense aquatic vegetation present in the lake, except for its shore, that mak.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic. Tropical; 15°S - 16°S, 47°W - 48°W
South America: Brazil. Known only from type location, a marginal lake on the left side of
Bezerra river, a tributary of the Negro river, tributary of Paracatu river at the São Francisco river basin (Ref. 79603).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 1.7 cm SL male/unsexed; (Ref. 79603)
Short description
Identification keys | Morphology | Morphometrics
Pamphorichthys pertapeh is distinguished from all other Poeciliinae species by two derived
characters, unique among poeciliins: (a) bilobed teeth present on dentary and external tooth row of the premaxilar bone and (b) distal-most segments of the anterior branch of the fourth gonopodial ray and of the third gonopodial ray are independently fused into elongated segments. Other diagnostic characters that are also found in other species of the tribe Poeciliini are: dark longitudinal stripe on female caudal peduncle; urogenital region of females with heavy dark pigmentation; third pelvic-fin ray of males curved distally; and specialized pair of anal scales anterior to the urogenital opening in females (Ref. 79603).
Dorsal-fin rays i(7) or ii(10)-7(15) or 8(2) (males), i(6) or ii(9)-7(14) or 8(1) (females); anal-fin rays in females iii(15)-9(15); pelvic-fin rays 5(5); caudal-fin branched rays 11(3); unbranched superior caudal-fin rays 6(1) or 7(1); unbranched inferior caudal-fin rays 6(2); pectoral-fin rays 10(1) or 11(2) (Ref. 79603).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Figueiredo, C.A., 2008. A new Pamphorichthys (Cyprinodontiformes: Poeciliidae: Poeciliini) from central Brazil. Zootaxa 1918:59-68. (Ref. 79603)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00342 - 0.03356), b=3.08 (2.82 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
