Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Siluriformes
(Catfishes) > Loricariidae
(Armored catfishes) > Loricariinae
Etymology: janmoli: Named for the Dutch ecologist Jan H. Mol for his strong personal investment in the knowledge and protection of Harttiella, especially in Suriname where he recovered the highly vulnerable Harttiella crassicauda..
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Known only from type locality in French Guiana, in a small forest creek of the Kotika Mountains at an altitude of 515 m.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.7 cm SL male/unsexed; (Ref. 90209)
Morphology | Morphometrics
soft rays: 5. Distinguished from all other species of Harttiella by its dark brown coloration with a large
transverse postdorsal saddle corresponding to the position in congeners of the third and fourth bands posterior to dorsal- fin origin (vs. brownish normally with five postdorsal bands). Differs further from other species by having the following morphometric characters: longer pectoral spines [mean = 27.14 ± 1.54% of SL vs 21.14 ± 0.98 < mean < 24.06 ± 0.84% of SL); longer pelvic spines [mean = 24.67 ± 1.46% of SL vs 19.36 ± 1.17 < mean < 22.86 ± 1.64% of SL); a greater anus to pelvic-fin origin length [mean = 12.88 ± 0.96% of SL vs 9.29 ± 1.42 < mean < 11.31 ± 1.01% of SL); anus to pectoral-fin origin length [mean = 34.24 ± 1.67% of SL vs 28.38 ± 2.75 < mean < 31.85 ± 2.26% of SL); and anus to tip of snout length (mean = 49.81 ± 1.63% of SL vs 43.32 ± 1.42 < mean < 48.09 ± 1.93% of SL; a wider body at dorsal-fin origin [mean = 23.46 ± 1.18% of SL vs 17.28 ± 1.11 < mean < 20.06 ± 1.61% of SL); and a deeper body at dorsal-fin origin [mean = 14.80 ± 1.14% of SL vs 9.86 ± 0.79 < mean < 11.41 ± 1.41% of SL) (Ref. 90209).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Covain, R., S. Fisch-Muller, J.I. Montoya-Burgos, J.H. Mol, P.-Y. Le Bail and S. Day, 2012. The Harttiini (Siluriformes, Loricariidae) from the Guianas: a multi-table approach to assess their diversity, evolution, and distribution. Cybium 36(1):115-161. (Ref. 90209)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00160 - 0.00754), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.8 ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).