218 PERCY SLADEN TRUST EXPEDITION 



the space between the cardiac and intestinal regions there is a small group of 4 granules 

 in the form of a curve, arched forward. Upper surface of wrist indistinctly nodulous, 

 lacking the strong nodule at articulation with hand, which is present in A. rufopunctata ; 

 outer surface cut by transverse grooves into 3 long transverse lobes, exclusive of a granular 

 area at the proximal end. The fingers cross at tips and do not gape, although they do 

 not fit evenly together ; the colour is white in the specimen preserved in alcohol. 



104. Actcea hirsutissima (Riippell). 

 Actcea hirsutissima Alcock (3), p. 141. 



Salomon; 1 $. Egmont, reef; 1 ?. Coetivy ; 4 $, 4 ?. 



105. Actcea rufopunctata Milne Edwards. 

 Actcea rufopunctata Alcock (3), p. 142. 



Egmont, reef; 1 $ (a) 1 ? (b). Amirante, 25—80 fins., Sta. Ell; 2 $ (c, d) small. 



In c and d (the larger, c, C. 1. 7"5 mm., C. b. 10-8 mm.) the middle of the 3 meso- 

 gastric lobules is much more extensive than in a and b, and lies partly between the 2 

 lateral mesogastric lobules; in a, 16 - 3 x 24 - 5 mm., and b, 13 - 2 x 1 9 - 3 mm., the very small 

 median islet is entirely in advance of the postero-lateral lobules of the mesogastric region. 

 In c the immovable finger is more arched and the gape correspondingly wider than in a ; 

 colour of the lobules in c red, interspaces dark ; a and b light-coloured, with a few 

 definitely placed red spots, which do not correspond in the two specimens ; they are more 

 numerous and relatively smaller in b. In d, 5 x 7 '2 mm., the colour is patchy and the fingers 

 do not gape. The species is most variable and a large assemblage of specimens might 

 indicate distinct varieties. 



106. Actcea garretti Rathbun. 



Actcea garretti Rathbun, 1906, p. 852, pi. 9, fig. 8. 



Actwa rufopunctata var. retusa Nobili, Ann. Sci. Nat. Zool. (9), iv. 1906, p. 253. 



Salomon ; 1 $. Praslin ; 1 $. 



107. Actaa obesa A. Milne Edwards (Plate 16, figs. 4, 5). 



Actcea obesa de Man, Abh. Senckenb. naturf. Ges., xxv. 1902, p. 612. 



Amirante, 30 fms., Sta. E 21 ; 1 $ young. 



C. 1. 4-3 mm., C. b. 7 mm. 



Carapace very broad, covered, as also chelipeds and legs, with sharp granules. 

 Grooves narrow. Hairs scanty, not noticeable without a lens, of varying length. 

 Lobules few and low ; mesogastric region not subdivided ; protogastric regions partially 

 and faintly divided longitudinally. Lateral margin divided by 3 furrows into 4 lobes of 

 which the 3 posterior are prominent, rounded, their lobules continued inward to the large 

 area known as 5 L. The areolets 1 M and 2 F are marked off from the orbital region, but 

 incompletely separated from 2 M and from each other. 



Front vertical, the main lobes separated by a V-shaped sinus, and separated from the 

 outer lobes by an acute angle. Three orbital grooves faint. Lower surface of carapace 

 granulate, crossed by grooves proceeding from the lateral margin as above. 



