116 



MISS M. L. HETT ON 



The internal organs are, on the whole, typical, bnt in the 

 female the anterior third of the ovary is paired. The ovary thus 

 constitutes a Y-shaped structure, each arm of the Y passing 

 directly into the oviduct of that side (text-fig. 2). I can find no 

 mention of this condition in any other species. 



Text-fis'ure 1 . 



Porocepha Jus c/ra ndis . 



A. Female specimen, nat. size. B. Cephalothorax, X 4. 



C. Terminal segment, X 2. 



a., anus ; g.a., genital aperture. 



In general features the specimens bear a strong resemblance 

 to Porocephalus armillatus Wyman, but differ from it in the 

 following particulars : — 



(1) The body is relatively thicker than in P. armillatus. 



(2) The papilla- are differently arranged, and the two conspicuous 



