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Pleuronectiformes (Flatfishes) >
Rhombosoleidae (South Pacific flounders)
Etymology: Peltorhamphus: Greek, pelteos, peltes = a fish named as "korakinos"; when it was salted received the name of "pelte" + Greek, rhamphos = bill (Ref. 45335); kryptostomus: Name from Greek 'krypto' meaning hidden and 'stomus' for mouth, referring to the mouth on the ocular side being mostly hidden by the broad rostral flap.
Môi trường: môi trường / vùng khí hậu / Mức độ sâu / phạm vi phân phối
Sinh thái học
biển gần đáy; mức độ sâu 2 - 40 m (Ref. 123823), usually 11 - 20 m (Ref. 123823). Subtropical; 43°S - 47°S (Ref. 123823)
Southwest Pacific: New Zealand.
Chiều dài lúc trưởng thành đầu tiên / Bộ gần gũi / Khối lượng (Trọng lượng) / Tuổi
Chín muồi sinh dục: Lm ?, range 9 - 10 cm
Max length : 14.5 cm SL con đực/không giới tính; (Ref. 123823); 14.5 cm SL (female)
Các vây lưng mềm (tổng cộng) : 86 - 97; Tia mềm vây hậu môn: 59 - 67; Động vật có xương sống: 37 - 38. This species is distinguished from its congeners by the following set of characters: deep body, with greatest depth anterior to midpoint and with moderately rapid posterior taper; anterior profile of snout is smoothly rounded; second ocular-side pectoral-fin ray is filamentous and shorter than greatest body depth; conspicuous, finger-like filaments 1-5 on inner anteroventral margin of fleshy skinfold on ocular-side lower jaw; no scales on blind sides of dorsal- and anal-fin rays; eyes relatively large with well-developed pupillary operculum; interorbital space relatively narrow (usually < diameter of lower eye) with 2-4 scales; often with 4-6 scales in diagonal row between anteroventral margin of lower (non-migrated) eye and dorsal margin of rostral flap above mouth; gillrakers on first arch long, pointed, robust, with first and sometimes second raker on upper limb overlapping dorsalmost raker(s) on lower limb of first arch; meristic values relatively low (37-38 total vertebrae, 86-97 dorsal- and 59-67 anal-fin rays, 64-82 lateral-line pores, usually 23-24 supracranial pterygiophores, 14-20 total gillrakers on first gill arch, 4-6 on upper limb of first arch); head relatively large and wide; caudal peduncle wide. Colouration: light-brown to light gray ocular-side background with numerous, minute, pinkish spots over entire surface, and with many scales on ocular side of head and body with black pigment on bases of ctenii; the dorsal and anal fins in both sexes with either a pattern of a single darkly pigmented ray alternating with 4-8 lighter-pigmented rays, or with rays uniformly pigmented; black pigmentation on inner lining of ocular-side opercle and entire roof of mouth (Ref. 123823).
Cross section: flattened.
This is a shallow-water species that occurs in 1.5-40 m, with majority of specimens (70 of 81) examined were caught between 11 m and 20 m (8 of 81 collected in 1.5-5.0 m, 2 of 81 taken at 21 m; and only 1 was taken at 40 m. Little else is known about the ecology of this species (Ref. 123823).
Munroe, T.A., 2021. Systematic revision of the flatfish genus Peltorhamphus Günther, 1862 (Teleostei: Pleuronectiformes: Rhombosoleidae), including description of a new species from Southeastern New Zealand, with biological and ecological summaries for the species. Zootaxa 4905(1):1-104. (Ref. 123823)
Tình trạng Sách đỏ IUCN (Ref. 130435: Version 2025-2 (Global))
Mối đe dọa đối với con người
Harmless
Sử dụng của con người
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Ước tính dựa trên mô hình
Chỉ số đa dạng phát sinh loài (Tài liệu tham khảo 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Mức dinh dưỡng (Tài liệu tham khảo 69278) |
3.1 ±0.2 se; based on size and trophs of closest relatives |
Thích nghi nhanh (Tài liệu tham khảo 120179) |
Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.). |
Sự dễ bị tổn thương của nghề đánh cá (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |