Nomorhamphus lanceolatus

Nomorhamphus lanceolatus Huylebrouck, Hadiaty & Herder, 2014

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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Beloniformes (Needle fishes) > Zenarchopteridae (Internally fertilized halfbeaks)
Etymology: Nomorhamphus: Greek, nema = filament + Greek, rhamphos = bill, peak (Ref. 45335); lanceolatus: From the late Latin adjective lanceolatus, meaning lanceolate, in reference to the shape of the spiculus of the new species.

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

Freshwater; pelagic; depth range 0 - ? m. Tropical

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Asia: Sungai Wawolambo in Sulawesi Tenggara, Indonesia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 4.3 cm SL male/unsexed; (Ref. 97329); 5.4 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 11 - 13; Anal soft rays: 15 - 16; Vertebrae: 36 - 38. Nomorhamphus lanceolatus can be distinguished from all congeners by the combination of the following characters: lower jaw short; no fleshy lower jaw appendage in males; presence of black pigmentation in anal and dorsal fin; life coloration with yellow and orange colored anal, dorsal, and caudal fin, ventral surface of lower jaw orange and yellow belly; a lanceolate, dorsally slightly curved spiculus in the male andropodium, with the middle segments of the spiculus in contact with the distal tip of the third anal-fin ray; nine to ten segments proximal to spinae (mode nine segments); segments three or four to six or seven (mode four to seven) of second anal-fin ray in males with a dorsal and a ventral row of 'subsegments' forming small squares and rectangles of different sizes, so that these segments seem to be subdivided; third anal-fin ray slightly constricted longitudinally, giving the appearance of two distinct rays, distal part of this ray is slightly curved ventrally to contact spiculus (Ref. 97329).

Biology     Glossary (e.g. epibenthic)

Occurs in a stream of about 7-9 m wide and 50 cm deep, partially shaded by forest canopy, with a bed of sand and gravel (Ref. 97329).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Huylebrouck, J., R.K. Hadiaty and F. Herder, 2014. Two new species of viviparous halfbreaks (Atherinomorpha: Beloniformes: Zenarchopteridae) endemic to Sulawesi Tenggara, Indonesia. Raffles Bulleting of Zoology 62:200-209. (Ref. 97329)

IUCN Red List Status (Ref. 130435: Version 2025-2)

  Endangered (EN) (B1ab(iii)); Date assessed: 17 January 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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