📸 PhotoPhoto: OpenCage.info · CC BY-SA 2.5 · Wikimedia Commons Source
Japanese eagle ray
Myliobatis tobijei (Japanese eagle ray · トビエイ)
💡 Everyday Comparisons for Size, Mass & Speed
- 💡 Its maximum total length of 1.5 m is about waist-to-chest height on an adult human (Comparison).
- 💡 The recorded specimen of 66.5 cm disc width and 5.5 kg weighs about as much as four 1.5 L plastic bottles (5.5 kg ≈ 6 L) (Comparison, FishBase).
- 💡 It is caught in small-scale commercial fisheries and recreational fishing (FishBase).
Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.
📖 1. Overview
The Japanese eagle ray is a carnivorous ray that lives near the bottom from the intertidal zone to the upper continental slope, feeding on benthic animals.
🦴 2. Anatomy & Morphology
Measured specimens ranged in disc width from 24.5–61.9 cm in males and 21.4–65.6 cm in females, with males maturing at a disc width of about 43 cm or more. One abnormal female had a disc width of 66.5 cm and weighed 5.5 kg.
🔍 3. Ecology & Behavior
It feeds on bottom-dwelling animals. It is ovoviviparous, with eggs hatching inside the mother's body.
🇰🇷 4. Connection to Korea
It is a species recorded in Korea and listed on the National List of Species of Korea.
📚 Sources & References
- • IUCN Red List VU (2021) — https://www.iucnredlist.org/species/161357/124471213
- • IUCN Red List category VU — latest assessment at iucnredlist.org
- • catalogueoflife.org — 453D8
- • iucnredlist.org — 124471213
- • 국가생물종목록(국립생물자원관) ktsn 120000057388 — https://species.nibr.go.kr/home/mainHome.do?cont_link=009&subMenu=009002&contCd=009002&ktsn=120000057388
- • wikidata.org — Q3766634
- • commons.wikimedia.org — File:Myliobatis tobijei.jpg
- • fishbase.se — Myliobatis-tobijei.html
- • Silhouette: PhyloPic — M Kolmann · CC0 1.0 (Congeneric silhouette — Myliobatis)
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.