The Romans had little prior naval experience; on the few occasions they had previously felt the need for a naval presence they had usually relied on small squadrons provided by their Latin or Greek allies. In 260 BC the Romans set out to construct a fleet and used a shipwrecked Carthaginian quinquereme as a blueprint for their own. As novice shipwrights, the Romans built copies that were heavier than the Carthaginian vessels, and thus slower and less manoeuvrable. The quinquereme provided the workhorse of the Roman and Carthaginian fleets throughout the Punic Wars, although hexaremes (six oarsmen per bank), quadriremes (four oarsmen per bank) and triremes (three oarsmen per bank) are also occasionally mentioned. So was the type that Polybius uses it as a shorthand for "warship" in general. A quinquereme carried a crew of 300: 280 oarsmen and 20 deck crew and officers; it would also normally carry a complement of 40 marines; if battle was thought to be imminent this would be increased to as many as 120.