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4.0 out of 5 stars
Should Be Titled "The Detailed But Incomplete Biology of the Land Crabs", November 11, 2010
Although incomplete I enjoyed it and gathered knowledge not otherwise known, but it does have it's short comings like it shows a picture of a hermit "crab" on the front, but the hermit "crab" is not a "true crab". As the custodian of over 100+ of the hermit crab (Coenobita), clypeatus I was disappointed that the genus (Coenobita) often used in the pet trade was not addressed in a manner so new owners as well as more experienced to the professional keepers could obtain new information to better the lives and lengthen the life span of these interesting crustaceans as some can reach the ripe old age of 20 to 30 years in either captivity or in their natural environment as they have not been successfully bred in captivity, and the books offered at pet stores are inconsistent, but helpful if a wide selection are purchased compared to one another. This book would be great for the biologist and those advanced individuals who keep crabs, hermits, etc.
Although very scientific in nature a lot of interesting information was left out that has been observed both in captivity and in the wild. Such as the below information taken from my website.
At the northern edge of the range in the Bermuda Islands there is a special problem, the large shell that the Land Hermits needed to continue their growth are all extinct. In many of the Caribbean Islands the hermits would rather use the conical black and white colored Turban shell called (Cittarium pica) formally Livonia. Many visitors to those Islands think that the species is the most abundant shell the land hermits use, but the shells are excavated sometimes miles away and often on hillsides.
In the wild there is a phenomena called a "Shell Convention"hundreds to thousands of land hermits get together and start to trade shells one by one , it starts to cascade into a mass shell trading frenzy with mating often occurring at the same time too.
Some crabs may start to often switch shells prior to a molt,they may go down a size because it's easier to burrow into their substrate while wearing the smaller shell,when the molting process is completed they will the trade up to the larger shell to accommodate their new growth.
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