Slender smooth-hound variety of benthic fishes and invertebrates, and also scavenges; human garbage has been reported among its stomach contents. Small bony fishes, lanternfishes in particular, are the most important prey type, followed by decapod crustaceans. Cephalopods, gastropods, isopods, brittle stars, dogfish sharks, and cartilaginous fish egg capsules may also be consumed. On the Challenger Plateau, cephalopods are an important food source for juveniles under long. Like the false catshark, the slender smooth-hound exhibits aplacental viviparity with oophagy, in a form different from that in the mackerel sharks. Mature females have a single functional ovary, on the right side, and two functional
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