User blog comment:Martialmaniac/Current arc's name confirmed: Succession Contest arc/@comment-31525652-20170627001026

But then what should we call the chapters from 340 to 348. "Dark Continent arc" is what Viz is calling it and it's deceiving since the cast haven't even sailed yet. And when we finally reach there will we call it "Dark Continent arc part 2"? There's also the problem of where to fit the Hisoka vs. Chrollo fight in all of this.

Here's how I see things:

The "Dark Continent" is a big saga that contains several smaller arcs within it:

DARK CONTINENT SAGA

1. Preparation/Special Mission/Dark Continent Prologue arc (includes Hisoka vs Chrollo fight)

2. The Succession Contest/Black Whale arc

Hopefully...

3. New Continent arc

4. Far Ocean Boundary/Gate/The Gatekeeper/Morel's ship arc

5. Dark Waters arc

6. Dark Continent arc

7. Return Journey arc