Neorossia leptodons is a species of bobtail squid native to the southwestern Pacific Ocean, from New South Wales (32°08′S 153°07′E / 32.133°S 153.117°E / -32.133; 153.117) to South Australia (33°58′S 131°22′E / 33.967°S 131.367°E / -33.967; 131.367).

It lives at depths from 130 to 1,110 m.[3][4] N. leptodons exhibits sexual dimorphism.

Females grow to 77.5 mm in mantle length (ML), while males are not known to exceed 42 mm ML.

[4] The type specimen was collected in the Great Australian Bight, South Australia (37°18.81′S 138°36.3′E / 37.31350°S 138.6050°E / -37.31350; 138.6050 to 37°17.76′S 138°35.01′E / 37.29600°S 138.58350°E / -37.29600; 138.58350).

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