Dipturus macrocauda (lat.) Is a species of cartilaginous fish of the rhombic rays of the stingrays. They live in the northwestern part of the Pacific Ocean . They are found at a depth of up to 800 m. Their large, flattened pectoral fins form a rhombic disk with an elongated and pointed snout. The maximum recorded length is 120 cm. Propagate by laying eggs [1] [2] [3] .
| Dipturus macrocauda |
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| No rank : | Bilateral symmetrical |
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Dipturus macrocauda ( Ishiyama , 1955) |
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- Raja macrocauda Ishiyama, 1955
- Dipturus macrocaudus (Ishiyama, 1955)
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Not enough data IUCN Data Deficient : 161738 |
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The species was first scientifically described in 1955 as Raja macrocauda [4] . The species epithet comes from other Greek. μακρός - “long” and lat. cauda is the tail.
These rare bathidemersal stingrays live off the coast of Japan , Korea , Taiwan and China , in the East China and the Sea of Japan . They are found at a depth of 300-800 m. They prefer a sandy bottom [3] .
The wide and flat pectoral fins of these rays form a rhombic disk with a triangular elongated snout and rounded edges. On the ventral side of the disc are 5 gill slits, nostrils and mouth. On the long tail there are lateral folds. These skates have 2 reduced dorsal fins and a reduced caudal fin [1] . The maximum recorded length is 120 cm [2] .
Like other rhombic, these stingrays lay eggs enclosed in a rigid horn capsule with protrusions at the ends. The capsule is 13.0-14.6 cm long and 6.0-8.0 cm wide. Embryos feed exclusively on yolk . Recently hatched skates tend to follow a large object similar to their mother [5] .
They are not the object of the target gear. Probably by- catch in the course of fishing by bottom trawls. The data for the assessment by the International Union for Conservation of Nature of the conservation status of the species are insufficient [3] .
