MUSEUM OF COMPARATIVE ZOOLOGY. 365 



Fig. 10. Fi S- n - 



rig 12. 



Fig 14. 



Figs. 10-18. AlloTchestes armatus: 10. 2d thoracic leg of female, with epimeron, gill and incuba- 

 tory plate. —11. 3d thoracic leg. — 12. Section of body of female (4th thoracic segment) showing 

 the incubatory pouch with two eggs. — 13. 5th thoracic leg. —14. 7th thoracic leg. — 15. Abdomen, 

 side view. —16. 2d abdominal leg. —IT. Caudal stylets. — 18. Hairs on the integument under 625 

 diameters. 



Body stout. Hind margin of the segments raised so as to form conspicu- 

 ous transverse ridges. Fore margin of the head produced into a point 



