Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 12.4-15.0 cm long and 8.7-9.0 cm wide (Ref. 41249, 41253). Depth range given by H. Ishihara (pers.comm. 07/07). Reported to feed primarily on amphipods, decapods, fishes, euphausids, and squid on Yamato Bank in the Sea of Japan. Maximum length reported 116 cm TL (Ref, 89865).
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