28 THE BEACHYUEA. 



Grapsus longitarsis Dana. 



Grapsua strigosus longitarsis Eathbun, Bull. U. S. Fish Coinin. for 1903 (1906), part 3, 

 838, text fig. 4, pi. 8, fig. 1. 



Rangiroa Island, Paumotus ; beach ; Sept. 21, 1899; 1 <$ , 1 9. 



Mohegan Reef, Rangiroa; Sept. 21, 1899; 1 S. 



Tikei, Paumotus ; shore ; Oct. 9, 1899 ; 1 9 with eggs. 



Fakarava Island, Paumotus; outer reef; Oct. 12, 1899; 1 S. 



Funafuti, Ellice Islands; shore; Dec. 25, 1899; 1 9. 



Between Galapagos and Manga Reva ; 300 fath. to surface ; station 

 4717 ; Jan. 13, 1905 ; 1 juv. 



I now believe the longitarsis form to be an independent species. Resides 

 the characters given in the work above cited, G. longitarsis has the anterior 

 half of the carapace more tuberculous, front wider, and the ridge running 

 lengthwise across the middle of the palm less distinct than in G. strigosus. 

 Although the fingers are narrower at the tip than in typical Grapsus, they 

 are much more hollowed underneath than in Geograpsus. 



Geograpsus grayi (Milne Edwards)- 

 Geograpsus grayi Alcock, 1900, 69, 395. 



Nine; Nov. 25, 1899; 1 S, 1 9. 



The width of the meropodites of the ambulatories in this and the fol- 

 lowing species is not a dependable character. In the U. S. National Museum 

 there are specimens of G. grayi from Glorioso Id. in which the meropodites 

 are less than half as wide as long, and a series from Japan in which they are 

 more than half as wide as long. 



In G. crinipes, which have been handled (from 7 localities), the meropo- 

 dites are commonly less than half as wide as long, sometimes just half as 

 wide as long. 



Geograpsus crinipes Dana. 



Geograpsus crinipes Alcoek, 1900, 69, 396. 



Makemo Id., Paumotus; Oct. 29, 1899; 1 $. 

 Aruo Atoll, Marshall Ids. ; Jan. 27, 1900 ; 1 9. 

 Ponape, Caroline Ids.; Feb., 1900; 1 <?, 1 9. 

 Kusaie, Caroline Ids.; Feb. 9, 1900; 1 9. 



