How does the species *M. angustirostris* differ from *M. leonina* regarding the male's nose structure?

Answer

*M. angustirostris* males have a much smaller, less bulbous proboscis

The specific epithet *angustirostris* references the much smaller, less bulbous proboscis that the males of the Northern elephant seal develop, distinguishing them from the Southern elephant seal (*M. leonina*).

How does the species *M. angustirostris* differ from *M. leonina* regarding the male's nose structure?
taxonomysealPinnipedmarine mammalElephant seal