CLASSIFICATION 



437 



As already stated, Simon does not consider the possession of 

 the two — often very feebly developed — eyes of generic importance, 

 and admits only the genus Ghelifer. 



Five species of Ghelifer (including Ch. cancroides) and five 

 of Chernes have been recorded in England. 



Fig. 125. — Ghelifer 

 cyrneus, enlarged. 

 (After Simon.) 



Fig. 226. — Chiridium 

 mitseorum, enlarged. 

 (After Simon.) 



Sub-Fam. 2. Garypinae. — The Garypinae have the cephalo- 

 thorax greatly contracted in front and often projecting con- 

 siderably. 



There are three genera, Chiridium, Olpium, and Garypus. 

 Ghiridium is eyeless, and appears to have only ten segments in 

 the abdomen, the tergal plates of which are 

 bisected. G. museorum is found in England, 

 and is the only Chernetid except Ghelifer 

 cancroides which habitually lives in houses. 

 G. ferum is found under bark in the south 

 of Erance. 



Neither Olpium nor Garyims, which both 

 possess four eyes and eleven abdominal seg- 

 ments, have as yet been found in this country. 

 Garypus, like Ghiridium, has the dorsal ab- 

 dominal plates bisected. There is a transverse 

 stria on the cephalothorax, and the eyes are 

 far from the anterior border. In Olpium the dorsal plates are 

 undivided and the eyes more anterior. 



Sub-Fam. 3. Obisiinae. — The cephalothorax of the Obisiinae 

 does not narrow — and is, indeed, sometimes broadest — anteriorly. 

 The chelicerae are notably large, and the dorsal abdominal plates 

 undivided. They are the most active of the Chernetidea, ordinarily 



Fig. 227. — Olpium 

 2xdlipes, enlarged. 

 (After Simon.) 



