Turtle leech

Ozobranchus
Ozobranchus jantseanus, length ca. 7mm.
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Annelida
Clade: Pleistoannelida
Clade: Sedentaria
Class: Clitellata
Subclass: Hirudinea
Order: Rhynchobdellida
Family: Ozobranchidae
Pinto, 1921
Genus: Ozobranchus
Quatrefages, 1852
Species 
  • ?Ozobranchus branchiatus (Menzies, 1791)
  • Ozobranchus jantseanus Oka, 1912
  • Ozobranchus margoi (Apáthy, 1890)
  • ?Ozobranchus polybranchus Sanjeeva Raj, 1951

Turtle leeches are a genus, Ozobranchus, of leeches (Hirudinea) that feed exclusively on the blood of turtles. Only two species—Ozobranchus margoi and Ozobranchus branchiatus—are found in the Atlantic coast of the United States and the Gulf of Mexico. Little is known about these leeches due to difficulties in studying their sea turtle hosts.