304 BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



Habits. — On mangroves (Greeley). The following notes were 

 furnished by Dr. E. A. Andrews, October 10, 1910 : 



Found in Montego Itiver, crawliusj; out on the stones and walls and rushing 

 under water when distui'bed. They were very al)undant. tliougli difficult to 

 catch because extremely agile. Zoeas apparently belonging to this crab were 

 taken in the tow-net in this river, and one is now alive here in fresh water, 

 having passed through the megalops into the adult form. Others were hatched 

 from eggs in fresh water. 



Range. — From the Bahamas to Monte Video, Uruguay. Ber- 

 mudas. 



Material examined. — 



xVbaco, Bahamas; Albatross; 10 males, 10 females (11372). 



Egg Island, Bahamas; Biol. Exped. State Univ. Iowa; specimen 

 m Mus. S. U. I. 



San Salvador, Bahamas; Albatross; 1 male, 4 females (11414). 



Nueva Gerona, Isla de Pinos; July 11, 1900; Wm. Palmer and 

 J. H. Riley; 1 female (23815). 



Montego River, Montego Bay, Jamaica; Aug. 25, 1910; E. A. 

 Andrews; 2, male and female (41525). 



Swan Islands, Caribbean Sea; C. H. Townsend; 1 male, 3 females 

 (14556). 



Rio Parahj^ba do Norte, Cabedello, Brazil; on mangroves; June 

 20, 1899; Branner-Agassiz Exped.; 1 male (25712). 



Rio de Janeiro, Brazil; Dr. Cunningham; 1 male (Cat. No. 68-82, 

 Brit. Mus.). 



Desterro, Brazil; Fr. Muller; 1 male (20312). 



SESARMA (HOLOMETOPUS) MIERSII IHEKINGI, new subspecies. 



Plate 85. 



Type-locality. — Bahia, Brazil, on the seashore; May, 1915; J. N. 

 Rose, collector; from Carnegie Institution; male holotype, Cat. No. 

 48299, U.S.N.M. 



Diagnosis. — Differs from typical mierf<ii in having a little narrower 

 carapace and longer legs. 



Affinities. — Approaches very near S. hiolleyi of the Pacific coast, 

 which, however, has a higher front and differently shaped male 

 abdomen. 



MeasurcTnents. — Male holotype, length of carapace 20.7, width of 

 same posteriorly 22, anteriorly 20.4, superior frontal width 11.7 mm. 



Range. — Brazil, from Bahia to Sao Paulo. 



Material examined. — Besides the type-specimen noted above, 1 

 male was collected at Iguape, Sao Paulo, Brazil, by R. Krone, and 

 sent by H. von Ihering, Museu Paulista, to the National Museum 

 (47830). 



