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Smooth hound

Mustelus mustelus

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Categories:
1Sharks
🐟 Description & Characteristics

w14:paraId="68BBA485" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">The Smooth hound is a medium-sized shark belonging to the family Triakidae, and it is often mislabeled as Tope in local markets. Unlike most sharks, which have sharp triangular teeth, this species has flattened teeth that resemble small plates, designed to crush hard shells. The body is elongated, and the snout is short and rounded rather than pointed. The dorsal colour is uniform grey or grey-brown without spots, while the belly is white. If white spots are present, the fish is likely a member of the Starry Smooth hound species.

w14:paraId="01A37E7A" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Common Names Across the Mediterranean

w14:paraId="7837C0F8" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Italy: Palombo

w14:paraId="0DF2E235" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Spain: Musola

w14:paraId="39DCD0DD" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">France: Émissole lisse

w14:paraId="67457E4E" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Turkey: Kedi balığı or Camgöz

w14:paraId="700B763C" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Malta: Mazzola bla xewka

w14:paraId="02C3DE53" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">North Africa (Tunisia/Morocco): Kelb bhar

w14:paraId="2F34D9D0" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Adriatic Coast (Croatia/Slovenia): Pas mekaš

w14:paraId="1994DB3B" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Greece: Drositis or Galeos

w14:paraId="7EAB28AB" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Habitat

w14:paraId="074417D8" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">It lives primarily on the seabed in sand or mud areas. It is usually found at depths between 5 and 50 metres, but it can descend to 350 metres. It is common throughout the Mediterranean and along the coasts of the eastern Atlantic.

w14:paraId="5A536659" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Size

w14:paraId="4C8A5CF7" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">It usually reaches a length of 1 to 1.2 metres. The maximum recorded length is 2 metres, though such sizes are rare today. Females grow larger than males and reach sexual maturity at approximately 80 centimetres.

w14:paraId="731D5A80" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Diet

w14:paraId="4825DA7C" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">A specialised bottom hunter, it feeds mainly on crustaceans. Its preferred food consists of crabs, shrimp, and lobsters, which it easily crushes with its plate-like teeth. It also feeds on cephalopods such as octopus and squid, as well as small bottom-dwelling fish like gobies and hake.

w14:paraId="6F3B95CB" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Reproduction

w14:paraId="5BEE8947" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">The species is a placental viviparous animal. This means that the embryos develop within the uterus and receive nourishment directly from the mother through a placenta, just like mammals. Pregnancy lasts about 10 to 11 months. It typically gives birth in spring or early summer, producing between 4 and 15 pups that measure 35 to 39 centimetres at birth. These embryos are very slender and flexible because they have cartilage instead of bones, which allows many of them to fit within the mother.

w14:paraId="69153E6F" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Fisheries & Economic Value

w14:paraId="6F0919C3" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">It is a commercially significant species. It is caught intensively using bottom trawls, nets, and longlines. The meat is sold fresh, frozen, salted, or smoked, and it is the species most commonly consumed in restaurants and supermarkets because the true tope shark has nearly disappeared.

w14:paraId="4B2E4E31" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">Significant Research Findings

w14:paraId="4A7A8D7C" w14:textId="77777777" w:rsidR="00AC5D96" w:rsidRPr="00AC5D96" w:rsidRDefault="00AC5D96" w:rsidP="00AC5D96">The International Union for Conservation of Nature has classified the Smooth hound as Endangered in the Mediterranean. Although it reproduces faster than the true tope, overfishing has significantly reduced its populations. Research in Turkey and the Adriatic showed that juveniles feed almost exclusively on crabs while adults include fish in their diet. Genetic studies have also helped distinguish it from similar species since morphological similarities often confuse even scientists.

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🌊 Habitat

It lives primarily on the seabed in sand or mud areas. It is usually found at depths between 5 and 50 metres, but it can descend to 350 metres. It is common throughout the Mediterranean and along the coasts of the eastern Atlantic.

📏 Size

Triakidae

, and it is often

mislabeled

as Tope in local markets. Unlike most sharks, which have sharp triangular teeth, this species has flattened teeth that resemble small plates, designed to crush hard shells. The body is elongated, and the snout is short and rounded rather than pointed. The dorsal colour is uniform grey or

grey-brown

without spots, while the belly is white. If white spots are present, the fish is likely a member of the Starry Smooth hound species.

🦰 Diet

A specialised bottom hunter, it feeds mainly on crustaceans. Its preferred food consists of crabs, shrimp, and lobsters, which it easily crushes with its plate-like teeth. It also feeds on cephalopods such as octopus and squid, as well as small bottom-dwelling

fish like

gobies and hake.

🐣 Reproduction

The species is a placental viviparous animal. This means that the embryos develop within the uterus and receive nourishment directly from the mother through a placenta, just like mammals. Pregnancy lasts about 10 to 11 months. It typically gives birth in spring or early summer, producing between 4 and 15 pups that measure 35 to 39 centimetres at birth. These embryos are very slender and flexible because they have cartilage instead of bones, which allows many of them to fit within the mother.

Fisheries & Economic Value

It is a commercially significant species. It is caught intensively using bottom trawls, nets, and longlines. The meat is sold fresh, frozen, salted, or smoked, and it is the species

most commonly consumed

in restaurants and supermarkets because the true tope shark has nearly disappeared.

🌍 Mediterranean Local Names
CountryLocal Name
🇮🇹 ItalyPalombo
🇪🇸 SpainMusola
🇫🇷 FranceÉmissole lisse
🇹🇷 TurkeyKedi balığı or Camgöz
🇲🇹 MaltaMazzola bla xewka
🏴 North Africa (Tunisia/Morocco)Kelb bhar
🌊 Adriatic Coast (Croatia/Slovenia)Pas mekaš
🇬🇷 GreeceDrositis or Galeos
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