///, MALACOPODA. 



457 



tubes which arise in numbers from the spiracles, which are irregu- 

 larly distributed in each somite (fig. 478, tr). 



Fig. 478.— Anatomy of female Peripatus opened dorsallj-. (From figures of IMoseley 

 and Balfour.) a, anus ; fit, antennae. ; Ina, ventral nerve cords: (/, diKestive tract; 

 5"'i f^enital opening; o, ovary; og, brain; p, pharynx; .st/, slime gland; so, ne- 

 pliridia ; sp, salivary gland; ir, tracheEe ; u, uterus. 



Tlie soft-.skinuod body, whicli shows no external i-inging, bears 

 the legs, each terminated by claws. These legs somewhat resemble 

 tlie annelid an pariipodia in that they are not jointed and are not 

 sharply sepiarated from tlie trunk. Each segment bears legs, while 

 the head is provided with three pairs of aj^pendages: a jjair of 

 ringed antenna, a pair of mandibles, which lie in the oral cavity, 

 and a joair of mouth papilhe, at the tips of which are the 0]ienings 

 of the slime glands, the sticky secretion of which is squirted out 

 and serves to capture insects (iig. 478, sd). 



The nervous system consists of a jjair of cerebral ganglia (og), 

 supplying the antennas and a pair of veiy jirimitive eyes; and a 

 pair of ventral cords {bm), swollen slightly in each segment, which 



