Sure - I scanned it from the magazine, but they'd probably be interested in knowing too
Generally speaking, a chaloupe is frequently referred to as a boat that is similar to but bigger than a canot. They dont have decks (open), and with the rigging as you can see in the photo (but they can be row boats too). If you say chaloupe 10 times really fast you get sloop. Indeed these little guys in the photo could be fairly well described as open double-masted gaff-rigged sloops, but isn't is much easier to say "petites chaloupes"
I would say it is more of a connotation word than an actual descriptive term, as chaloupe's describe a large number of boat types.