128 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



Actaea spinosissima Borradaile. 

 ActcBa spinosissima Borradaile, Fauna Maldive Arch., I. part 3. p. 256. fig. 55, 1902. 

 Nallaudu, at anchorage, 24 fathoms, January 18 ; two young. 



Xanthias alcocki, sp. nov. 



Figs. 9-10. 



The surface of the carapace is granular, the granules coarse on the anterior 

 and antero-lateral portions, very fine on the posterior part. Fronto-orbital 

 region marked off by a sinuous groove. Regions well delimited. There is a 

 short transverse crest on each epigastric, protogastric, hepatic and anterior 

 branchial region. 



The front is marked by a double edge, the lower or true edge not visible in 

 a strictly dorsal view, outer angle very slightly marked. Notches of supra- 

 orbital margin minute. 



Antero-lateral margin cut into four teeth besides the inconspicuous outer 

 angle of the orbit ; the first and fourth teeth are very small, the second and 

 third of good size, triangular, the tip of the second pointing a little forward, 

 the third directed outward. A subhepatic protuberance is visible between the 

 orbital and the first antero-lateral tooth. 



The chelipeds in the female are nearly equal, stout, less than twice the 

 length of the carapace. Outer surface covered with scaly granules. Merus 

 nearly hidden under the carapace, margins finely serrulate. Carpus with a 

 few larger granules. Granules of hand larger above than below, some of them 

 disposed to form longitudinal rows. Fingers rather long, deflexed, grooved, 

 tips crossing ; light brown in alcohol, the color on the pollex not reaching 

 quite to the palm ; dactylus of right or larger hand with a large tooth at its 

 base. 



Ambulatory legs finely granular ; upper margins of meral and carpal joints 

 serrulate. Dactyli pubescent, propodal joints sparsely so. 



Dimensions. — Length of carapace of female, 3 mm. ; width, 4.4 mm. 



Type locality. — Nallandu, 24 fathoms, at anchorage, January 18 ; one mature 

 and one young female. 



Pilumnus woodworthi, sp. nor. 



Figs. 11-13. 



Carapace nearly three-fourths as long as broad, deeply areolated, covered 

 with a short dense pubescence mixed with longer hairs; when this is removed, 

 fine granules may be seen on the anterior portion of the gastric region and 



