MP* [ !fp ■: 



Fig. 4. — Limnocaridina Tanganyika and Palcemon moorei. 10, First perneo- 

 pod, outer side, icw, Inner side. II, Second peneopod. 12, Dactylus of 

 fourth perreopod. 13, Fifth peneopod. 13^, Dactylus of same. 14, First 

 pleopod of female. 15, First pleopod of male. 16, Second pleopod of 

 female. 17, Second pleopod of male. 17a, Appendix masculina and ap- 

 pendix inferna. 18, Tail fan. 19, Apex of telson. 20, Palcemon moorei. 

 Carapace. 21, First perteopod (more highly magnified). 22, Second pera;o- 

 pod. 23, Fourth peneopod. 24, Apex of telson. (After Caiman. ) 



