BRACHYURA AND MACRURA 29I 



the first pair ; the carpus is well developed, but small and rounded, 

 the palm is oblong, twice as wide as long ; the fingers resemble each 

 other, are moderately broad, longitudinal in direction, curved and cross 

 at the tips. 



The third pair of feet are a little longer than the second ; the fifth 

 pair reach the end of the merus of the third. 



The postero-inferior angles of the fifth and sixth segments of the 

 abdomen are subacute ; sixth segment about one and a third times as 

 long as the fifth ; the telson is one and three fifths 

 times as long as the sixth segment and has two pairs 

 of lateral spinules, the extremity is rounded and armed 

 with about ten or twelve spinules; the uropods are 

 scarcely longer than the telson, oval, the outer is the 

 broader and along its outer margin is cut into from ten 

 to twelve teeth, becoming gradually a little smaller j^.^_ 



and closer towards the posterior extremity. ^/^^ serrifer, 



The eggs are rather large, measuring a millimeter tail fan (X 14)- 

 in the lesser diameter. 



Type Locality. — Three ovigerous females were taken at Tagus Cove, 

 Albemarle Island, on the reef north of Tagus Hill, Maixh 16, 1S99 

 (U. S. Nat. Museum Cat. No. 24S36). 



Dimensions. — Female, length about 15 mm., length of carapace 

 and rostrum 5 mm. 



Family PAL^MONID^. 



PAL^MON sp. 



Clipperton Island Lagoon, Nov. 23, 1S98, one specimen, 27 mm. 

 long, the large pair of chelipeds missing. Very near P. ritteri 

 Holmes, but differs from specimens of that species from Lower Cali- 

 fornia, in being more slender, the rostrum a little more ascending, and 

 slightly arched above the extremity of the eyes, the eyes black in alco- 

 hol instead of pale, the sixth abdominal segment a little longer (twice 

 as long as fifth) . The first pair of chelipeds and the antennse corre- 

 spond to P. ritteri. 



Proc. Wash. Acad. Sci., July, 1902. 



