Sorry, that was a joke. The Snark is described in detail, with but a single additional caution that some Snarks are Boojums, with no description whatsoever of

Sorry, that was a joke. The Snark is described in detail, with but a single additional caution that some Snarks are Boojums, with no description whatsoever of the difference. And, in the end, only a Boojum is found. The band of snark-hunters are _also_ described in detail, almost always emphasizing the things that they cannot do or the additional risks of having them along, but they're brought along anyway.