92 ARTHROPODA. 



Order II. CHILOPODA. 

 SYNGNATHA. 



Body flattish, submembranous. Two anterior pairs of legs 

 modified into foot-jaws. Antennas with fourteen or more joints. 

 One pair of legs to each somite. 



The two mandibles have each a palpiform appendage ; the 

 second pair of foot-jaws are perforated for the discharge of a 

 poisonous secretion. The eyes are generally numerous in the 

 adult, and in Cermatia they are large and faceted ; they are 

 wanting in Geophilidae. Some species of Scolopendra are said to 

 be viviparous. 



Except the Greophilidas, these centipedes are very active and 

 voracious ; the bite of the larger species is highly venomous and 

 very painful, leaving a callus which may last for months. Some 

 of the Geophili have the property of secreting a phosphorescent 

 matter. 



LithobiidcB. Eucorybus. 



Strigamia. Lithobius. Scolopendra. 



Cryptops. 



G-eophilus. Scolopendridte. Cermatiidts. 



Himantarium. Heterostoma=Der- Cermatia =Scutigera. 



Arthronomalus. cetum. 



Order III. MALACOPODA. 

 ONYCIIOPHORA. PERIPATIDEA. 



Body soft, cylindrical, unsegmented. Jaws foot-like, termi- 

 nated by two curved claws. Legs from fourteen to thirty pairs. 

 Viviparous. Sexes distinct. 



There are two simple eyes and two tentacular-like antennae. 

 The lips are soft, and the mouth has a perforated papilla on each 

 side. The legs are indistinctly articulated, and provided with 

 two terminal claws. The tracheal pores are diffused over the 

 surface of the body. 



The body is unsegmented according to Huxley, but it has from 

 13 to 36 segments according to Schmarda. There are evident traces 

 of segmentation in Peripatus Edwardsii, but there are none in P. 

 Blainvillei, P. juliformis, P. capensis, and P. novce-zelandia. 



