530 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



lapping- in the median line. The terminal lobe of the fir.st pair of 

 plates is not deiined. 



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.—Q?it. No. 29093, U.S.N.M. 



PSEUDIONE CURTATA Richardson. 



Pseudione curtuta Richardson, Proc. U. S. Nat. Mus., XXVII, 1904, pp. 80-81. 

 Locality. — Key West, on Petrollsthes sexsjrmosus (Gibbes). 



Fig. 574. — Pseudione curtata. a. Dorsal view of female, b. Ventral view of s.a.me. 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 wideh^ rounded. Eyes 



wanting. 



The segments of the thorax 



are distinct. The epimera arc 



distinct as narrow plates on 



the extreme lateral margin of 



the anterior })ortion of the 



first four segments. Ovarian 



bosses are prominent on the 



anterior portion of the tirst 

 four segments. The epimera occupy almost all of the lateral margin 

 of the three posterior segments. 



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

 ally in small rounded epim(>ra with the exception of the last, or termi- 

 nal segment which is very small and rounded posteriori}". 



Fk;. .')7.').— Pseudione cur- 

 tata. First lamella of 



MARSUl'IUM. X 14^. 



Fig. 57(;.— Pseudione 

 CURTATA. Leg of 



SI.XTH PAIR OF ADULT 

 FEMALE. X 39. 



