A second closely related member of this family, known by the name of Temminck's Snapper, attains to yet longer proportions, and is the largest known river-tortoise. The carapace in this species may measure over 2 feet in length, and has three strongly marked longitudinal ridges. The head is relatively larger and the tail somewhat shorter than in the preceding species. It is a denizen of the southern districts of the United States, being met with in Texas, Florida, and as far north as the Missouri.
The habits of the two species are stated to be identical. Both of them frequent the rivers and swamps of the areas indicated, preferring the waters that have a muddy bottom, and in some localities occurring in vast numbers. As a rule they prefer lying in deep water near the centre of the river or swamp they inhabit, but they also occasionally ascend to the surface and float in midstream with outstretched necks. Like other water-tortoises, they come on land to find suitable locations for depositing their eggs. The name of Snappers, commonly applied to these tortoises, bears reference to their inveterate habit of snapping and biting viciously at everything placed within their reach. Even from the egg the young of Temminck's species is wont to display this trait. The animals are somewhat esteemed for food, and are consequently caught for the market. They will take almost any bait, but manifest a predilection for fish. Considerable caution has necessarily to be exercised in dealing with them in the boats, and it is a common custom to decapitate them immediately they are hauled on board, otherwise they are capable of inflicting the most terrible wounds with their powerful cutting beaks on the persons of all or any who may remain within their reach. Bathing in waters tenanted by the pugnacious and distinctly aggressive snappers is a risky proceeding, and many cases of serious injuries that have happened to incautious adventurers in this direction have been recorded.
Photo by Scholastic Photo. Co.] [Parson's Green.
A GIANT TORTOISE WITH A EUROPEAN TORTOISE ON ITS BACK.
Illustrating their comparative dimensions.
The food of both the alligator and Temminck's snapper consists mainly of fish, and where common these tortoises must be ranked among the most potent agencies in denuding the rivers and lakes of their finny denizens. Not content with fish, the larger examples have been known to drag under water and devour such large water-fowl as ducks, and even geese. It is stated that the snappers exhibit a surprising amount of agility in the water, and swim after and capture the fish on which they feed. Such a feat seems scarcely credible of a bulky adult individual, while, moreover, it is provided with a remarkable and effective adaptation for taking its prey by stratagem. A very fine example of Temminck's snapper was for many years confined in a tank in the Reptile-house in the Regent's Park Zoological Gardens. It usually lay prone at the bottom of its tank, giving little or no signs of life throughout the day, but was wont to display more activity and to move about its tank at night. At times, when ready for a fresh food-supply, it was observed that it would lie motionless as a stone, as usual, but with its mouth open to its widest gape. This attitude it would maintain for several hours together. The singularity of this action was that the gaping jaws displayed to view two elongate worm-like structures, which sprang close to one another from the floor of the mouth just within its entrance. These worm-like appendages were continually writhing to and fro, and presented in both aspect and movements a most remarkable resemblance to actual living worms. With this naturally provided decoy for fish there can be no need for the snapper to exhaust its energies in the strenuous pursuit of its quarry. To make the delusion complete, the head, neck, and chin of Temminck's snapper are decorated with small lobular or leaf-like membranous appendages resembling sponges or aquatic vegetation. The solid grey-brown triangular head of the animal itself might easily be mistaken for a piece of rock, and thus decorated with seemingly natural growths the unwary fish come browsing along it, rush upon the wriggling worms at the entrance of the cavernous chamber, and are lost. A photograph of this interesting Chelonian is reproduced on page [560], which depicts it with its mouth open, and indicates both the position and the presence of the worm-like decoy-appendages.
Photo by S. G. Payne & Son, Aylesbury, by permission of the Hon. Walter Rothschild.
ELEPHANT-TORTOISE.