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Ovalentaria/misc (Various families in series Ovalentaria) >
Opistognathidae (Jawfishes)
Etymology: Opistognathus: Greek, opisthe = behind + Greek, gnathos = jaw (Ref. 45335); to the very elongate upper jaw of the type species of the genus, Opistognathus nigromarginatus (Ref. 128653); thionyi: Named for our colleague and dear friend Thiony Simon (1985–2016), who passed away during preparation of this article.
Eponymy: Thiony Simon (1985–2016) was an oceanographer, environmentalist and diver. [...] (Ref. 128868), visit book page.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي وابسته به آب سنگ; تغييرات عمق 10 - 65 m (Ref. 129348). Tropical
Southwest Atlantic: Brazil.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 5.4 cm SL جنس نر / بدون خواص جنسي; (Ref. 129348)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 11; شعاع نرم باله پشتي (کل) : 15 - 16; خارهاي باله مخرجي: 3; شعاع نرم باله مخرجي: 14 - 15; مهره ها: 28. This species is distinguished by the following set characters: anterior nostril is a short tube with simple cirrus on posterior rim; maxilla rigid, not produced as a thin flexible lamina posteriorly; no supramaxilla; subopercle with a broad, fan-like flap; vomer with one tooth; pale buccal area surrounding esophageal opening; body with 45-52 oblique body scale rows in longitudinal series; vertebrae 10 + 18; spinous dorsal fin with black blotch, when present, between spines 2-5. Colouration: body with five poorly defined irregular bands and sides sometimes with diagonal rows of pale spots smaller than eye diameter; when present, a black blotch in spinous dorsal fin between spines 2-5; buccal area surrounding esophageal opening pale. Also easily distinguished from its congeners by the divergence in the mitochondrial gene COI, as specimens form a monophyletic group that differs from its closest relative (O. maxillosus) by an average of 9% (654 bp analyzed) (Ref. 129348).
Cross section: oval.
Found solitarily, always in small constructed burrows on sandy rubble bottoms. It feeds on small benthic organisms that live near the bottom (e.g., small shrimps) (Ref. 128653).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Smith-Vaniz, W.F,, L. Tornabene and R.M. Macieira, 2018. Review of Brazilian jawfishes of the genus Opistognathus with descriptions of two new species (Teleostei, Opistognathidae). ZooKeys No. 794: 95-133. (Ref. 129348)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 82804) |
PD50 = 0.5000 [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). |
سطح تروفیک (مرجع 69278) |
3.3 ±0.5 se; based on size and trophs of closest relatives |
آسیبپذیری ماهیگیری (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |