. Evenings at the microscope : or, Researches among the minuter organs and forms of animal life . Zoology; Microscopy; Microscopes. WHEEL-BEARERS. 249 blance to the head of a rabbit, the antenna representing the ears. In front, and just below this head-like proboscis, is a double swelling, containing the rotatory organs, which are small and seldom unfolded. The eyes are deep black; probably, as in the last example, a red of great intensity. When the head is withdrawn, the integument is very clearly seen to be turned inwards. The body con- sists of one long cylindrical tube, which receives thre
. Evenings at the microscope : or, Researches among the minuter organs and forms of animal life . Zoology; Microscopy; Microscopes. WHEEL-BEARERS. 249 blance to the head of a rabbit, the antenna representing the ears. In front, and just below this head-like proboscis, is a double swelling, containing the rotatory organs, which are small and seldom unfolded. The eyes are deep black; probably, as in the last example, a red of great intensity. When the head is withdrawn, the integument is very clearly seen to be turned inwards. The body con- sists of one long cylindrical tube, which receives three or four short joints to complete the abdomen; at the dorsal point of the extremity of the last of these is the cloaca ; at this part the diameter is already very much attenuated; but there are eight or nine more joints which constitute the foot, and these are of extreme slenderness. Towards the extremity, two processes are given off behind, each consisting of a club- shaped piece, with a slender bristle at the tip. The foot terminates in three long, slender, cylindrical, divergent toes, which are flexible, and com- monly bent outward; they are equal in thickness, and truncate. These are often retracted in various degrees, even when the foot is otherwise extended. Owing to the slenderness of the body, the viscera are greatly elongated. The mastax, as usual in this family, consists of two hemispheres (each bearing two teeth, set transversely, but converging to the centre); it is situated at a considerable distance from the wheels, and is reached by a long buccal funnel. The digestive canal is a long sac, apparently undivided ; it originates directly from the mastax, with, I think, two small basal glands; its pos- terior extremity becomes gradually tapered to the cloaca. In the specimen we are examining, a small quantity of. TRIPOD Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloratio
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