236 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



[vol. 50 



extend to the tip of the sixth segment. There is a slight carina, 

 longitudinally placed near the outer margin. The posterior margin 

 is excavate between the produced lateral angles. The outer branch 

 is large and extends to the tip of the apical process of the sixth 

 segment. The inner branch does not quite reach the extremity of the 

 sixth segment. All the legs are ambulatory. 



89 



Fig. 85. — Persicyphops cooki, sp. nov. General figure. X 4. 

 Fig. 86. — Periscyphops cooki, sp. nov. Coxopodite of first thoracic segment 



(lateral view). X 7. 

 Fig. 87.. — Periscyphops cooki, sp. nov. Coxopodite of first thoracic segment 



(ventral view). X 7. 

 Fig. 88. — Periscyphops cooki, sp. nov. Abdomen with uropoda (dorsal view). 



X 7- 

 Fig. 89. — Periscyphops cooki, sp. nov. Abdomen with uropoda (ventral view). 



X 7. 



Twelve specimens of this species were collected by Dr. O. F. Cook 

 at Mt. Coffee and at Monrovia. One specimen was collected by 

 Mrs. Sharp at Mt. Coffee. The type is in the possession of Dr. 

 O. F. Cook. 



This species closely resembles Periscyphops alluaudi (Dollfus), 1 

 but differs in the much shorter apical process of the sixth abdominal 

 segment, in the shorter basal article of the uropoda per sc, and also 



1 Ann. Soc. Entomologique France, lxi, 1892, pp. 386-387, pi. 7, figs. la. 

 lb, ic. 



