194 lAnnean Society. [April 16, 



Ti-ih. 3. Pentazonia, Brandt. — Corpus ovale, in globum contractile, 

 dorso valde convexo, ventre complanato. Pedes laminis liberis 

 mobilibus affixi. 



Fam. 5. Glomeridcs, Leach. — Corpus leeve, in globum contractile. 

 Oculi distincti. 



Gen. 16. Glomeris, Latr. — Ocelli 8, in linea laterali curvata. 



Segmenta 13. Pedum paria 17. 

 Gen. 17. Zephronia, Gray. — Ocelli numerosi, aggregati. 



Antennae 6 — 7-articulatse, clavatse. Pedum paria 21. 

 Gen. 18. Sphasrotherium, Brandt. — Ocelli aggregati. An- 

 tennae 7-articulatse, clavatee. Pedum paria 21. 



Trib. 4. Monozonia, Brandt. — Corpus vermiforme, elongatum. Seg- 

 ment! singuli dimidia pars anterior cylindrica, posterior lateribus di- 

 latata; lamina ventrali duplici coalita pedum paria 2 gerenti. 



Fam. 6. Polyxenidce, Newp. — Caput arcuatum, prominens. Cor- 

 pus latum. Pedes attenuati ; coxis maximis. Segmentum anale 

 fasciculis longis. 



Gen. 19. Polyxenus, Latr. — Corpus breve, sqnamis parvis 

 penicillatis vestitum. Pedum paria 13. 



Fam. 7. Polydestnidce, Leach. 



Subfatn. 1. Polydesmince, Newp. Oculi nulli vel obscuri. 



Gen. 20. Fontaria, Gray. — Corpus convexum. Segmenta 

 imbricata ; laminis lateralibus deflexis. 



Gen. 21. Polydesmus, Latr. — Corpus depressum, subcon- 

 vexum ; laminis lateralibus horizontalibus. 



Gen. 22. ^ivongyXosoma, Brandt. — Corpus cylindricum. Seg- 

 menta tumida; laminis lateralibus rotundatis subnullis. 



Subfam, 2. Craspedosomince, Newp. Oculi distincti. 



Gen. 23. Craspedosoma, Leach. — Ocelli numerosi, aggregati. 

 Corpus depressum ; laminis lateralibus prominentibus. 



Gen. 24. Platydesmus, Lucas. — Ocelli duo, magni, promi- 

 nentes. Corpus depressum ; laminis lateralibus prominen- 

 tibus. 



Gen. 25. Cambala, Gray. — Ocelli serie simplici curvata. 

 Corpus cylindricum; laminis lateralibus brevissimis, in 

 porcam simplicem desinentibus. 



Trib. 5. BizoNiA, Newp. — Corpus subcylindricum ; laminis nullis mar- 

 giualibus. Antennae 7-articulatae, clavatae. Segmenta numerosa ; 

 singula e subsegmentis 2 coalitis efFormata, pedumque pai-ia 2 ge- 

 rentia. 



