11683 Thamnaconus hypargyreus (Cope, 1871) Monacanthidae Filefishes Tetraodontiformes Teleostei Lesser-spotted leatherjacket Indo-West Pacific: northwestern Australia. FISH 1801561 23 S 168 E Thamnaconus hypargyreus 235 - 400 m FISH 1801553 23 S 168 E Thamnaconus hypargyreus 235 - 360 m FISH 1801787 23 S 167 E 1987 Thamnaconus hypargyreus 338 - 338 m