HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsSmallpore whiptail Smallpore whiptail (Cetonurichthys subinflatus) Scientific name: Cetonurichthys subinflatus Sazonov & Shcherbachev, 1982 The Smallpore whiptail (Cetonurichthys subinflatus) is a marine fish of the family Macrouridae. Native range: Eastern Indian Ocean, Australia. BiologyDorsal spines (total): 2; Dorsal soft rays (total): 0. Head broad, shallow, interorbital 31-34% of HL; snout 36-42% HL, with paired tubercular scales at tip; suborbital 17-20% HL; ridge lacking stout scutelike scales; jaws short, upper jaw 24-28% HL, inferior; tooth rows short, crescent -shaped, outer premaxillary series enlarged. Cephalic sensory canal moderately dilated, lacking open pores; lateral line canal with modified scales, interrupted in places. Trunk scales small (11-13 rows between origin of first dorsal fin and lateral line), bearing erect spinules in no particular arrangement; scales along dorsal fins larger than surrounding ones; head completely scaled, including patches on gular and branchiostegal membranes. Spinous second ray of first dorsal fin with small serrations; outer ray of pelvic fins elongated. Anus midway between bases of anal and pelvic fins; periproct narrow; no dermal window of light organ. Eleven trunk vertebrae.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCetonurichthys subinflatusFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length40.0Depth range1316–1700 m (4318–5577 ft)EnvironmentMarine; bathydemersal; depth range 1316 - 1700 mClimateDeep-waterDistributionEastern Indian Ocean: Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026