GRAPSIDAE. 35 



those of the pollex ; the largest tooth of the former lies near its base, of the 

 latter near its middle. Inner surface of palm very finely granulated ; a 

 row of granules near and parallel to the distal end of the palm. 



Ambulatory legs of moderate length and width. Posterior margin of 

 merus joints unarmed ; anterior margin with a sharp sub-distal spine. Last 

 3 joints furnished with a few stiff bristles and long hairs; dactyli slender, 

 nearly as long as propodi. The legs have irregular transverse bands of 

 color. 



Dimensions: — Length 7 mm.; fronto-orbital width 9.7 mm.; posterior 

 width 8.5 mm.; width of front 5.5 mm. 



Type locality : — Kusaie, Carolines; Feb. 9, 1900: 1<? (Cat. No. 32,8G1, 

 U. S. N. M.). 



This species most closely resembles Sesarma {Parascsarma) lenzii de Man 1 ; 

 but our species has the lamina of the arm-joint less projecting distally, the palm 

 smoother inside and out, the pectinated ridges not parallel to the proximal 

 margin of the palm, and the projections of the upper margin of the movable 

 finger of different shape and not obliquely placed. 



Sesarma (Holometopus) obtusifrons Dana. 



Sesarma (Sesarma) obtusifrons de Man, Zool. Jahrb., Syst., 1895, 9, 1G1; 1898, 10, pi. 

 29, fig. 31. 



Nine ; Nov. 25, 1899 ; 1 <?. 



This species is variable in its proportions. In the 8 from Nine the length 

 is to the width as 1:1.35; in a £ from Hilo as 1:1.25; while de Man 

 {he. eii.) gives measurements of males, which have a width of 1.31 and 1.34 x 

 their length, respectively. 



Abdomen of S from Nine a little narrower than those from Hilo or than 

 that figured by de Man (op. cit., fig. 316). 



Sesarma (Holometopus) villosum A. Milne Edwards. 



Sesarma villosum A. Milne Edwards, Nouv. Arch. Mus. Hist. Nat. Paris, 18G9, 5, 31. 

 Sesarma villosa de Man, Zool. Jahrb., Syst., 1887, 2, <>44. 



Sesarma (Sesarma) villosa de Man, Zool. Jahrb., Syst., 1895, 9, 153; 1898, 10, pi. 29, 

 fig. 30. 



Kusaie, Carolines; Feb. 9, 1900; 1 S. 



1 Zool. Jahrb., Syst., 1895, 9, 193 ; 1898, 10, pi. 30, fig. 35. 



