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Teleostei (teleosts) > Siluriformes (Catfishes) > Akysidae (Stream catfishes) > Parakysinae
Etymology: Parakysis: Greek, para = the side of + Greek, kysthos = bladder (Ref. 45335); notialis: From the Greek notos, meaning southern, in reference to the distribution of this species (southern Borneo) (Ref. 50510).
More on authors: Ng & Kottelat.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal. Tropical

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Asia: known only from the Barito River drainage, southern Borneo.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 2.0 cm SL male/unsexed; (Ref. 50510)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 3; Anal spines: 0; Anal soft rays: 8 - 9; Vertebrae: 30 - 31. Head length 26.5-27% SL; conical head; presence of median concavity on margin of lower lip; presence of laterosensory canal pore between inner and outer mandibular barbels, branched outer mandibular barbels, branches of inner mandibular barbels separated; deeply forked caudal fin with pointed lobes; 10 branched principal caudal fin rays; sparsely pigmented caudal fin; absence of light brown saddle from base of posteriormost dorsal fin ray to caudal peduncle (Ref. 50510).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Ng, H.H. and M. Kottelat, 2003. Parakysis notialis, a new species of akysid catfish from Borneo (Siluriformes: Akysidae). Ichthyol. Res. 50(1):48-51. (Ref. 50510)

IUCN Red List Status (Ref. 130435)

Critically Endangered (CR) (B2ab(iii)); Date assessed: 01 September 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Parakysis notialis Ng & Kottelat, 2003