PTEROPODA. 225 



a part concealed from view, and passing right 

 through the neck, and expanded on each side ; 

 "forming an apparatus exactly comparable to the 

 double-paddled oar with which the Greenlander 

 steers his kajac, or canoe, through the very seas 

 inhabited by the little Clio we are describing." The 

 head exhibits a most astonishing display of creative 

 design ; around the mouth are six tentacles, each 

 covered with about three thousand red specks, which 

 are seen by the microscope to be transparent cylin- 

 ders, each containing about twenty little suckers, 

 capable of being protruded, and adapted for seizing 

 and holding their minute prey. " Thus, therefore, 

 there will be three hundred and sixty thousand of 

 these microscopic suckers upon the head of one 

 Clio ; an apparatus for prehension perhaps unequal- 

 led in the creation."* The jaws and tongue are 

 found to be of equally elaborate construction, and 

 the whole mouth is covered, when not in use, by 

 a sort of double hood, which closes over it like a 

 case. 



* Jones, Anim. Kingd. p. 425. 



