46 



ilYRIAPODA 



very thick. Compact or very short limbs. The terminal point of the last 

 limb without claws. 



Family 4. Geophilidae. 

 Body long, 80 to 180 rings, principal and subsidiary. No eyes. The 



Fig. 27. — Geophilus loncjicornis. (From C. L. Koch, Die Myiia^yoden.) 



maxillary palps not compact, and with first joint large. Last joint of the 

 last pair of legs with a sharp claw. 



Order III. Schizotaesia. 



The tarsi of all the legs multiarticulate. The eyes facetted. 

 Peculiar sense organ beneath the head. 



Family 1. Cermatiidae {Scutigeridae) 



Antennae with unequal number of joints. Body rings, each with one 

 pair of legs. Dorsal scutes not so large as ventral. Limbs long and 

 multiarticulate. (Fig. 17, p. 35). 



Order lY. Symphyla. 



Myriapods resembling Thysanura. A pair of limbs to each 

 segment. The antennae are simple and multiarticulate with un- 

 equal joints. Eyes few. Mandiljles short. One pair of maxillae. 

 Xo maxillipedes. Genital oritice in the last segment of the body. 

 A single pair of tracheae. Two abdominal glands on the posterior 

 part of the body. Two caudal appendages. Free dorsal scutes. 

 Ventral scutes often with parapodia. 



Family 1. Scolopendrellidae. 

 With the characters of the Order. 



