Spotted estuary smooth-hound
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The spotted estuary smooth-hound or rig (Mustelus lenticulatus) is a houndshark of the family Triakidae, found on the continental shelves and in estuaries around New Zealand.[1] It is closely related to the gummy shark (Mustelus antarcticus) of Australia.[2] Males can grow up to a length of Template:Cvt, while females can reach a length of Template:Cvt.[1] In 2025, rigs were found to be the first known sharks capable of sound production, namely, "clicks."[3]
It is commercially fished, and is commonly served in fish and chip shops in New Zealand under the name "lemonfish".[4] In June 2018 the New Zealand Department of Conservation classified the spotted estuary smooth-hound as "not threatened" with the qualifier "conservation dependent" under the New Zealand Threat Classification System.[5]
References
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