1900.] FEOM THE SOUTH PACIFIC. 593 



ridges on the branchial regions and faint transverse markings on 

 the front ; no tooth behind that forming the orbital angle ; the 

 chelipeds smaller than in P. minutus, the hands less swollen, a ridge 

 running along the lower part of the hand and continued on to the 

 finger ; the fingers spoon-like at the ends, which are fringed with 

 short stiff hairs, the arm bearing at its distal end on the inner 

 side a crest of three teeth, the wrist with a spine on the outside at 

 the distal end ; the legs slender and almost hairless ; the meropodite 

 of the walking-legs with one tooth above and two below at the 

 outer end ; the propodite slenderer than in P. minutus." 



The third maxilliped is shown in fig. 7 a. 



Colour in spirit : greenish, banded on the legs with brown. 



Length 6 mm. Front 5 mm. ; tip to tip of orbital spines 

 7*5 mm. 



This species belongs to the group with no tooth behind the 

 orbital angle, including P. corrugatus Martens 1872, P. cethiopicus 

 Hilg. 1869, P. minutus A. M.-Edw. 1873, P. plicatus H. M.-Edw. 

 1837, and P. longipes Eathbun 1893. 



Funafuti ; one female. 



Genus Geogbapstts Stimps., 1858. 



70. Geogbapstts gbati (H. M.-Edw.), 1853. . 



Grapsus grayi, H. M.-Edwards, Ann. Sci. Nat. (3) xx. p. 170 

 (1853). 



Geograpsus rubidus, Stimpson, Proc. Ac. N. Sci. Philad. 1858, 

 p. 103. 



Geograpsus grayi, H. M.-Edwards, Nouv. Ai-ch. Mus. (1) ix. 

 p. 288 (1873); Kingsley, Proc. Ac. N. Sci. Philad. 1880, p. 196. 



Funafuti ; two males, four females. 



Eotuma ; one male, one female. 



Subfamily Sesaemin-E. 

 Genus Sesabma Say, 1818. 



71. Sesabma attbbyi A. M.-Edw., 1819. 



Sesarma {Holometopus) aubryi, A. M.-Edwards, Nouv. Arch. 

 Mus. (1) v. Bull. p. 29 (1869) ; (1) ix. p. 307, pi. xvi. fig. 2 

 (1873). 



Sesarma aubryi, de Man, Zool. Jahrb. ii. Syst. 3, p. 642 (1887). 



Eotuma ; one male. 



72. Sesabma gabdinebi, n. sp. (Plate XLII. fig. 8.) 



Diagnosis. " A Sesarma in which the front is half the fronto- 

 orbital breadth, the latter rather less than the length of the cara- 

 pace ; the front hidden from above by the frontal lobes, the frontal 

 edge divided into five shallow bights by four projections, not 

 denticulate ; the frontal lobes prominent, sharp, denticulate, the 



