Genera and Species oj- Scolopendridgs. 229 



a". Anal pleurae very small, without pores and 

 without spines. 



a}'^. Antennae longer ; head not covering the 

 maxillipedes. 

 Asanada, Meinert. Type breviconiis, 

 Mein. 

 b^'^. Antennae very short ; head covering the 

 maxillipedes. 



Pseudocryptops, gen. nov. Type Walkeri, 

 sp. n. 



i^\ Anal pleurae larger, porous and spined. 



a". Head not covered posteriorly by the 

 first tergite. 



o^*. Basal plate visible between the head 

 and first tergite ; claw of anal leg 

 veiy long. 

 Arthrorhabdus, gen. nov. Tj^e formosus, 

 sp. n. 

 6'^. Basal plate absent; claw of anal leg 

 small. 

 Scolopendra* (Linn.), Leach. Type 

 gigantea, Linn. 



6'^. Head covered posteriorly by the first 

 tergite. 



a^'. Head sulcate ; tarsi unspined ; 

 basal plate visible. 



a"'. Stigmata large, triangular ; anal 

 legs thinner and claw smaller. 

 Cormocephalus, Newport. Type riibriceps, 

 Newp. 

 6'®. Stigmata small ; anal legs 

 thicker, claw long. 

 Cupipes, Kohlrausch. Type amphieurys, 

 Kohl. 



6''. Head not sulcate ; basal plate 

 invisible ; stigmata ear-shaped. 

 Otostigma, Porath f- Type carinatum, 

 Porath. 



b^. Anal legs not provided with a claw and with the 

 three dif^tal segments enormously widened and 

 leaf -like. 



Alipes, Imhoft" J. Type inulticoatis, Imhoff. 



IP. Seventh somite bearing a pair of stigmata. 



«'■'. Stigmata small, not sieve-like. 



• Syn. Rhomhocephalus , Newport ; Eurylithobius, Butler, 

 t Syn. Branchiotrema, Kohlrausch. 

 X Syn. Eucorybaa, Gerstaecker. 



