Speckled smooth-hound seabed on the continental shelf at depths of between . Reports of this fish occurring in the Atlantic Ocean off the coast of Argentina are thought to be erroneous, and are likely to refer to the narrownose smooth-hound ("Mustelus schmitti"), another shark that is speckled with white spots. The speckled smooth-hound is ovoviviparous with eggs that develop within the female and hatch into juvenile fish which are about at birth. Litter sizes are typically seven. Along with the humpback smooth-hound ("Mustelus whitneyi") and the spotted houndshark ("Triakis maculata"), this fish is known to local fisheries as "tollo" and is caught
Istrian Shorthaired Hound Writers cited as having mentioned the type include Bishop of Đakovo Petar Bakić in 1719 and the veterinarian Franjo Bertić, also of Đakovo, in 1859. The old type is seen in the Posavaz Hound and the Istrian Coarse-haired Hound, as well. The smooth- and coarse-haired hounds were used for hunting in Istria (see the article on Motovun for photographs of the sort of mountainous terrain they were bred to hunt) while the Posavaz Hound is from the Sava Valley. The Istrian hounds are thought to be the oldest of the hound breeds in the Balkan region. A stud book was