Pungitius nakamurai, Nakamura’s ninespine stickleback

Pungitius nakamurai Matsumoto & Matsuura, 2026

Nakamura’s ninespine stickleback
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Gasterosteoidei (Sticklebacks) > Gasterosteidae (Sticklebacks and tubesnouts)
Etymology: Pungitius: Name meaning one that pricksnakamurai: Name 'nakamurai' in honor of Dr. Morizumi Nakamura, who reported this species as Pungitius sp. and proposed the Japanese name 'Musashi-tomiyo'.

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

Freshwater; benthopelagic. Temperate

Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Japan.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.1 cm SL male/unsexed; (Ref. 138934)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7 - 9; Dorsal soft rays (total): 8 - 12; Anal spines: 1; Anal soft rays: 8 - 11; Vertebrae: 31 - 34. This species is distinguished from its congeners by the following set of characters: dorsal-fin rays IX (VII-IX) + 11 (8-12); anal-fin rays I + 10 (8-11); pectoral-fin rays 10 (8-10); pelvic-fin rays I + 1 (1 or 2); procurrent caudal-fin rays 5 (4-6) + 5 (4-6) = 10 (8-11); lateral plates in an incomplete row (0–2 lateral plates on anterior body, 3-8 plates on caudal peduncle), forming a distinct lateral keel on caudal peduncle; 6 (6 or 7) plates on ventral surface of caudal peduncle; vertebrae 33 (31-34) [14 (13 or 14) abdominal and 19 (17-20) caudal vertebrae]; dorsal-fin spines inclining alternately to sides of mid-line; first dorsal fin spine antero- to postero-dorsal to upper end of pectoral fin base; ascending process of pelvis well-developed, upper end of pelvis reaching to level of fifth pectoral-fin ray base; presence of antero-ventral process of ectocoracoid, right and left ectocoracoids articulating anteriorly with each other; absence of distinct ridge on cleithrum and ectocoracoid; body usually dark yellow; membranes of dorsal-fin spines hyaline or with a few minute black spots; membrane of pelvic-fin spine of adult male white, becoming blue during courtship behavior; and membrane of anal-fin spine of adult male whitish with a distinct white blotch (turning blue during courtship) (Ref. 138934).
Body shape (shape guide): elongated.

Biology     Glossary (e.g. epibenthic)

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

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Matsumoto, T. and K. Matsuura, 2026. A new species of ninespine stickleback, Pungitius nakamurai (Gasterosteiformes, Gasterosteidae), endemic to Honshu Island, Japan. Ichthyol. Res. 1-11. (Ref. 138934)

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


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: of no interest
FAO - Publication: search | FishSource |

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Trophic ecology
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index
(Ref. 82804)
PD50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level
(Ref. 69278)
3.3   ±0.2 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). 🛈