Dusky smooth-hound Dusky smooth-hound The dusky smooth-hound ("Mustelus canis"), also called the smooth dogfish or the dog shark, is a species of houndshark in the family Triakidae. This shark is an olive grey or brown in color, and may have shades of yellow or grayish white. Females live to 16 years and males have a lifespan of 10 years. "M. canis" was the first shark recognised to have viral infections. "M. canis" can be known as smooth dogfish, Atlantic smooth dogfish, dusky smooth-hound, grayish, nurse shark, smooth dog, or smooth-hound. It was originally named "Squalls canis". In Latin, "mustelus" translates to weasel
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