778 PROCEEDINGS OF THE NATIONAL MUSEUM. voi.xxm. 



peduncles of the antennulw extend beyond the ej'^es by about one- 

 quarter of the length of the distal segment. The peduncles of the 

 antenna^ are three-fourths as long as the eyes. The basal article is 

 armed with a single spine on the outer side, the second segment by a 

 single spine near the base of the eye, and an elongated process with 

 a terminal and three other spines on the outer side. The acicle is 

 about twice as long as this process, and is armed with five spines on 

 the inner side, ])y a terminal spiiu* and ])y three spines on the external 

 margin. 



Afketojxigurus <jUli differs from M. jparadoxus^^ A. Milne-Edwards,^ 

 in the character of the front, which in that species is sharp and pro- 

 duced and is described as being more prominent than the lateral points. 

 The antennular peduncles do not reach the cornete, while in Ml.dnpagui'us 

 gllli they pass them. The chelipeds are quite different in proportion. 

 The telson in Mixtopagur^ts jxiradoxmiii s\'mmetrical, in M. gill I very 

 unsymmetrical. 



The central areolation of the anterior portion of the carapace is 

 shield shaped and smooth, the other parts of this portion are cut up 

 by depressions. The posterior portion and the plates of the abdomen 

 are calciffed. 



The chelipeds are short and stout; the inner and anterior mar- 

 gins are spiny; short conical spines are scattered over the surface. 

 The crest of the palm has a row of six large spines; smaller ones are 

 scattered over the surface; the movable ffnger has two rows of spines 

 above. 



The ffrst right ambulatory leg has its carpus and propodus armed 

 with a row of spines on the upper margin; there are two on the base 

 of the dact}'!; in the other ambulator}^ feet the spines are confined to 



the carpus. All of the feet are hairy. 



The segmental plate of the sixth segment of the abdomen is armed 

 with a row of spines on its distal margin. The telson is very unsym- 

 metrical. It is fringed with long hair. 



A single female w^ith eggs was dredged at station 2601, 34° 39' 15" 

 north latitude, 75^ 38' 30" west longitude, in 107 fathoms. The anterior 

 portion of the carapace is 8 mm. long. 



ryj!?^.— U.S.N. M. No. M805. 



' A. Milne-Ed wardn and E. L. Bouvier, Mem. Mus. Conip. Zool., XIV, No. 3, p. 24, 

 pi. II, 1893. 



