Part of it will depend on where it is located. On rivers they are typically referred to as a barge or a flat boat. On oceans or seas the term scow is often used, though barge is also common.
Froe
PuntBargeTrowJon Boat
A Landing ship, an LCVP, an LCT, a Higgins Boat or an LCI.
flat bottom boats maybe?
Scow, flat, barge, raft... you'd need to be more specific.
The another name for canal boat is BARGE
Another name for a tippy boat is, CANOE
A sampan is a relatively flat-bottomed Chinese wooden boat.
D sharp is another name for E flat
barge
A Landing ship, an LCVP, an LCT, a Higgins Boat or an LCI.
A Barge