530 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



lapping in the median line. The terminal lobe of the first pair of 

 plates is not defined. 



There is a high and widely rounded expansion or carina on the basis 

 of all the legs. 



Male unknown. 



Four specimens were collected on the eastern shore of Virginia . by 

 Prof. H. E. Webster. Host unknown. They were sent from Union 

 University to the U. S. National Museum. 



Type. Cat. No. 29093, U.S.N.M. 



PSEUDIONE CURTATA Richardson. 



Pseudione curtata RICHARDSON, Proc. U. S. Nat. Mus., XXVII, 1904, pp. 80-81. 

 Locality. Key West, on Petrolisthes sexspinosus (Gibbes). 



FIG. 574. PSEUDIOXE CURTATA. a, DORSAL VIEW OF FEMALE. 6, VENTRAL VIEW OF SAME. X 8. 



Head very large, with wide anterior margin, almost straight; no 

 frontal border. Antero-lateral portion produced in a small process 

 on either side. Posterior por- 

 tion widely rounded. Eyes 

 wanting. 



The segments of the thorax 

 are distinct. The epimera are 

 distinct as narrow pfetes on 

 the extreme lateral margin of 

 the anterior portion of the 

 first four segments. Ovarian 

 bosses are prominent on the 

 anterior portion of the first 

 The epimera occupy almost all of the lateral margin 



FIG. 575. PSEUDIONE CUE- 

 TATA. FIRST LAMELLA OF 

 MARSUPIUM. X 14|. 



FIG. 576. PSEUDION E 

 CURTATA. LEG OF 

 SIXTH PAIR OF ADULT 



FEMALE. X 39. 



four segments. 



of the three posterior segments. 



The abdomen has the six segments distinct. All are produced later- 

 ally in small rounded epimera with the exception of the last, or termi- 

 nal segment which is very small and rounded posteriorly. 



