Dusky smooth-hound fishes is their ability to continually replace the teeth in their upper and lower jaws. Smooth dogfish differ from other sharks because of their 10 rows of flat, blunt teeth. The teeth in the upper and lower jaws are similar in size and are asymmetrical with rounded cusps. These teeth are used to crush and grind food, rather than bite it. Their unique dentition is important for their crustacean-based diet. In smooth dogfish, tooth replacement is related to body growth. They grow about 10 cm per every six rows of teeth replaced. That is an increase of 0.03 mm per
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