148 THE CLIO. 



single, and may be compared, as Professor Jones has well 

 remarked, to the double-paddled oar, with which the 

 Greenlander propels and steers his kajak through the 

 seas, which the clio itself navigates. The head of the 

 clio is enveloped in a mantle, which can be retracted at 

 pleasure, so as to expose the mouth, surrounded by 

 three conical appendages on each side, like fleshy ten- 

 tacula. Examined by means of a microscope, each of 

 these appendages is seen to be regularly and numerously 

 covered with red points, which, when inspected by a 

 lens of great power, are found to be distinct, transparent 

 cylinders, sheathing about twenty minute suckers, capa- 

 ble of being protruded, and acting as organs for seizing 

 and retaining prey. It has been calculated, that the 

 total number of these suckers, upon the head of a single 

 clio, amounts to three hundred and sixty thousand, 

 constituting an apparatus for prehension, as Professor 

 Jones observes, perhaps unparalleled in the creation. 

 Besides these oval appendages, the clio can protrude 

 from its head, even when the mantle is closed, two 

 slender horns or feelers, in order to ascertain the pre- 

 sence of food ; and thus informed, it prepares its pre- 

 hensile instruments. The mouth of the clio is found 

 to be furnished with a tongue, covered with sharp horny 

 spines ; and its jaws are provided with pointed horny 



