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On the one hand, this makes for a useful reference to its subject, particularly for biology students (its bibliography, for example, is enormous); on the other, its scanty species descriptions reduce its usefulness for those who want a field guide, or who want to know more specifically about the animals in question.
In at least one instance this limited space leads to an oversimplication that I believe to be incorrect: the book states that garter and hognose snakes are rear-fanged and mildly venomous. While they have enlarged rear teeth and their saliva does seem to cause reactions in some people, I do not believe that is the same as venom produced by venom glands and delivered by hollow fangs, as is the case with true rear-fanged snakes (such as Hypsiglena, Trimorphodon, Boiga). In any event, the characterization overlooks such subtleties, which detracts from our understanding of these animals.
On the one hand, this makes for a useful reference to its subject, particularly for biology students (its bibliography, for example, is enormous); on the other, its scanty species descriptions reduce its usefulness for those who want a field guide, or who want to know more specifically about the animals in question.
In at least one instance this limited space leads to an oversimplication that I believe to be incorrect: the book states that garter and hognose snakes are rear-fanged and mildly venomous. While they have enlarged rear teeth and their saliva does seem to cause reactions in some people, I do not believe that is the same as venom produced by venom glands and delivered by hollow fangs, as is the case with true rear-fanged snakes (such as Hypsiglena, Trimorphodon, Boiga). In any event, the characterization overlooks such subtleties, which detracts from our understanding of these animals.