308 bulletin: museum of comparative zoology. 



of second and third pairs narrowing more at the distal end ; distal spine smaller, 

 slenderer ; legs of second and third pairs more pubescent and hairy. In dejinitus 

 the third, abdominal segment of the male, and the second and third of the female, 

 are crossed by a transverse ridge, lacking in japonicus ; each of the segments in 

 the male, except the second and seventh, is longer in proportion to its width than 

 in japonicus. 



Dimensions. — $, Philippines: length 23.2 mm., greatest width (posteriorly) 

 30 mm., width at anterolateral angles 27.8 mm. 



9 , Makassar : length 19.6 mm., greatest width (posteriorly) 25 mm., width at 

 antero-lateral angles 22.2 mm. 



GRAPSIDAE. 



Grapsus grapsus tenuicrustatus (Herbst). 



Grapsus grapsus tenuicrustatus Rathbun, Bull. Bur. Fisheries for 1903, 1906, part 3, 

 p. 838. 



Dutch New Guinea : Sorong - T 1 mature 9 with a large Rhizocephalid filling 

 the abdomen. 



Moluccas : eastern part of harbor of Tifou, Bourou Island, 1 9 • 



Metopograpsus latifrons (White). 



Metopograpsus latifrons Milne Edwards, Ann. Sci. Nat. Zool., 1853 (3), 20, p. 166 

 [132]. 



Dutch New Guinea : Sorong ; 1 £ 1 9 ovigerous. 

 Utica nausithoe de Man. 



Plate 2, figs. 3-3. 



Utica nausithoe de Man, Zool. Jahrb. Syst., 1895, 9, jp. 113, pi. 28, figs. 24-24c 

 (Atjeh). 



Bali : Boeleleng; 1<J . Length 25.2 mm. ; width 27 mm. The posterior foot 

 is considerably shorter than the others, not reaching beyond the middle of the 

 propodus of the preceding pair. 



Metasesarma rousseauxi Milne Edwards. 



Metasesarma'rousseauxii Alcock, op. cit., 1900, 69, p. 427. 



Moluccas : Patani, Halmaheira Island ; 1^4 9 • 

 Dutch New Guinea: Saonek,' Waigiu Island; 1 $ juv. 

 Dutch New Guinea: Manokwari, beach; 2 £ . 



Metasesarma aubryi A. Milne Edwards. 



Sesarma (Metasesarma) aubryi de Man, Zool. Jahrb. Syst., 1895, 9, p. 130; 1898, 

 10, pi. 29, fig. 27. 



