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Pleuronectiformes (Flatfishes) >
Bothidae (Lefteye flounders)
Etymology: Crossorhombus: Greek krossoi = tassel + Greek, rhombos = paralelogram (Ref. 45335).
More on authors: Hensley & Randall.
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
समुद्री ड़िमरसल; गहराई सीमा ? - 8 m (Ref. 9824). Temperate
Northwest Pacific: Taiwan. Southwest Pacific: Lord Howe Island. Possibly occurring in the Western Central Pacific.
आकार / वज़न / Age
परिपक्व अवधि: Lm ? range ? - ? cm
Max length : 13.0 cm TL पुल्लिंग / अलिंग; (Ref. 9824)
पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 85 - 88; ऐनल सौफट रेज़: 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 anterior margin of lower eye, length of upper jaw 3.5 to 4.1 times in head length. Teeth of upper jaw biserial, teeth of outer row more widely spaced than teeth of inner row. Teeth in lower jaw uniserial. Gill rakers short. Scales on eyed side with long ctenii. Scales on blind side cycloid. Pectoral fin on eye side with 11 or 12 rays and on blind side with 9 or 10 rays (Ref 42535).
Body shape (shape guide): short and / or deep.
Lives on silty sand bottoms and feeds on bottom-living animals. Only known from specimens collected from divers. Sexually dimorphic characters possibly develop at about 6-7 cm SL.
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
Hensley, D.A. and K. Amaoka, 2001. Bothidae. Lefteye flounders. p. 3799-3841. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9824)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
मात्स्यिकी: कोई रुचि बग़ैर
साधन
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इंटरनेट स्रोत
Estimates based on models
Phylogenetic diversity index (संदर्भ
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00408 - 0.02036), b=3.04 (2.85 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (संदर्भ
69278): 3.5 ±0.37 se; based on food items.
लौटाव (संदर्भ
120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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