PROCEEDINGS OF THE NATIONAIj MUSEUM. vol. 60. 



Spirobolus stolU Pocock. 

 Spirobolus eximius Porat. 

 Oxobolus rnrilis, new species. 

 Oxoholiis cinctus, new species. 

 Oxobolus cratus, new species. 

 Oxobolus pictus, new species. 

 Allopocockia tylopus (Pocock). 

 Spirobolellus articiilus Pocock. 

 Arolus purulanus, new species. 

 Orthomorpha coarctata (Saussiire). 

 Oxidus, gracilis (Koch). 

 Amplinus areatus Pocock, 

 Av\pUnus nitidus (Brolemnnn). 

 Amplinus palicaudatus (Attems). 

 Amplinus orplmius, new species. 

 Polylepiscus stolli Pocock. 

 Polylepiscus actaeon Pocock. 

 Polylepiscus heterosculptus (Carl). 

 Chondrodesmus morUanus (Pocock). 

 Chondroresmus rodriguezi (Brolemann). 

 Cyclorhabdus contortus Brolemann. 

 Eutyporachis tessellafus Pocock. 

 Eutyporachis oltraniarci (Carl). 

 Atylophor rafaelanus, new species. 

 Tunodesmus orthogonvs, new species. 

 Tunodesmus laniinigcr, new species. 

 Synthodesmus simiilans, new species. 

 Rliysodesmus cluimpioni Pocock. 

 Rhysodesmus stolli Pocock. 

 Rhysodesrnus molaccus (Brolemann). 

 Curodcwius guaienialensis, new species. 

 Holistophallus peregrinus Silvestri. 

 Sphaeriodesmus coriaceus Pocock. 

 Sphaeriodesmus medius Carl. 

 Euspliaeriodesmus angustus (Pocock). 

 Cylionus constrictus Pocock. 

 Peridontodesmus flogellatus Pocock. 

 Cynedesmus eelatus (Pocock). 

 Cynedestmts perparvus (Pocock). 

 Glomeroides centralis, new species, 

 Qlomeridesmus centralis, new species. 



Suborder COLOBOGNATHA. 



Family PLATYDESMIDAE. 

 Genus PLATYDESMUS Lucas. 



1. PLATYDESMUS TRIANGULIFER Pocock. 



Platydesuius trianguUfer Pocock, Biol. Centr.-Amer., Diplop., 19<.)3, p, 45, 

 pi. 4, figs. 4-4e. 



Locality.— Guatemala,: Volcan de Acatenango. 



