Morphobiological description of deep-sea spotted ratfish <i>Hydrolagus barbouri</i> (Chimaeridae, Chimaeriformes)

Abstract

Morphological description is given for 31 specimens of spotted ratfish Hydrolagus barbouri caught at northeastern Japan and southern Kuril Islands in the 1980, including both male and female juveniles and adults. Counts for teeth enamel rods, prepelvic tenaculum hooks, and intestinal valves are presented. The species biology is discussed.

Keywords

• hydrolagus barbouri
• ratfish hydrolagus barbouri
• morphometric description
• teeth enamel rod
• prepelvic tenaculum hook
• intestinal valve
• species biology