HomeFish encyclopediaRay-finned fishesFlatfishesLefteye floundersLord Howe Island flounder Lord Howe Island flounder (Crossorhombus howensis) Scientific name: Crossorhombus howensis Hensley & Randall, 1993 The Lord Howe Island flounder (Crossorhombus howensis) is a marine fish of the family Bothidae. Native range: Northwest Pacific, Taiwan. Southwest Pacific: Lord Howe Island. Possibly occurring in the Western Central Pacific. BiologyDorsal soft rays (total): 85-88; Anal soft rays: 64 - 69. Head and body on eyed side tan to grey with many small dark specks and spots. A series of dark spots very close to dorsal and ventral edges of body. About 4 or 5 spots along straight section of lateral line. Dorsal, anal, and caudal fin light coloured with small dark specks. Flaps on eyes of males with dark spots. Blind side of females tan to whitish. Males with distinct bluish black V-shaped mark on blind side. Ventral arm of "V" wider than dorsal arm. Body ovoid, its depth about 1.7 times SL. Head small, snout shorter than eye, profile steep anterior to interorbital area. Head length 3.9 to 4.2 times SL. Interorbital region broad and concave, probably wider in males than females. Males with a rostral spine and several small orbital spines. Both eyes on left side of head, front margin of upper eye over middle of lower eye. Flaps on posterior areas of eyes in males. Mouth small, reaching to below antSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCrossorhombus howensisFamilyBothidae (Lefteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length13.0Depth range8 m (26 ft)EnvironmentMarine; demersal; depth range ? - 8 mClimateTemperateDistributionNorthwest Pacific: Taiwan. Southwest Pacific: Lord Howe Island. Possibly occurring in the Western Central Pacific.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, minimum population doubling time less than 15 months (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