44 



MYRIAPODA 



Family 5. Blanjulidae. 



Thin cylindrical body with more .than 30 body rings. 

 absent or in a simple row beneath the edge of the forehead. 



Eyes either 



Fig. 22. Blanjulus guttulatus. (From C. L. Koch, Die Myriapoden.) 



Family 6. Chordeumidae, 



Resemble the Folydesmidae (Fam. 7), but the head is longer and less rounded 

 in the forehead. The antennae are placed more at the side of the head. 

 Eyes small and numerous, in a cluster. Somites 30 or 32. (Fig. 16). 



Family 7. Folydesmidae. 

 Body cylindrical, with a lobe or keel on the posterior part of the upper 

 surface of the body ring. Somites 19 or 20. No eyes. 



Fig. 23. Polydesmus coUaris. (From C. L. Koch, Die Myriapoden.) ' 



Suborder 2. Colobognatha. Family 8. Polyzoniidae. 

 Head small, eyes few or none. Mouth-parts degenerate, adapted for 

 sucking. Pleural scutes free or coalesced. Laminae pedigerae free. Somites 



Fig. 24. Polyzonium germanicum. (From C. L. Koch, Die Myriapoden.) 



30 to 108, 1st and 2nd somites with one pair of feet. 3rd or 1st and 

 2nd apodous. Foramina repugnatoria j^resent. Auxiliary copulatory organ 

 in 7th somite. 



Order II. Chilopoda (or Syngnatha). 



Antennae with many joints, at least 1'4. Only one pair of 

 legs to each body ring. The genital opening on the last ring 

 of the body. Bases of the legs widely separate. 



There are four families in this Order : 



