RATHBUN— MARINE BRACHYURA 227 



lower edge granulate. Chelipeds of $ very unequal, spinous ; upper and inner edges of 

 merus spinous ; outer surface of wrist and palm spinous, spines of palm very unequal, 

 lower fourth of palm smooth ; fingers light brown with white tips, widely gaping, those 

 of large claw each with a single tooth ; dactyli spinous outside for half their length ; one 

 row of spines runs from the palm on to the immovable finger ; dark colour extending very 

 little on the palm ; tips of fingers broad and deeply hollowed. Upper margin of merus 

 joints of legs armed with a row of spines ; upper surface of carpal and propodal joints with 

 3 rows of spines. 



In the females the chelipeds are nearly equal ; fingers black with light tips. 



This species is more strongly spinous than any other Chlorodopsis. In form and 

 general appearance, it resembles Pilodius flavus Rathbun (1906, p. 860, text-fig. 21), 

 which is less deeply areolated and devoid of spines on the dorsum and on the upper 

 margin of the orbit. 



142. Pilodius paumotensis Rathbun. 



Pilodius paumotensis Rathbun, Mem. Mus. Comp. Zool., xxxv. 1907, p. 52, pi. 8, 

 figs. 2, 2 a, 2 b. 



Salomon ; 1 $. Peros, Coin ; 1 $. 



The $ resembles closely the type ; the ? has a dark green colour, and is slightly 

 wider than the $ cotype, approaching Chlorodopsis melanochira A. Milne Edwards ; in 

 P. paumotensis, there is no narrow lobule cut off from the posterior end of the mesogastric 

 region. 



143. Cymo andreossyi (Audouin). 

 Cymo andreossyi Alcock (3), p. 173. 

 Coetivy, 32 feet, taken by diver ; 1 $ ovig. 



144. Cymo melanodactyhis de Haan. 

 Cymo melanodactyhis Alcock (3), p. 174. 

 Coetivy ; 2 ?. 



145. Cymo quadrilobatus Miers. 

 Cymo quadrilobatus Alcock (3), p. 175. 



Salomon; 2 $, 2 ?. Egmont, reef; 1 ?. Praslin ; 1 $. 



Length of largest specimen ($, Salomon) 173, breadth 19 mm. 



146. Pseudozius caystrus (Adams & White). 

 Pseudozius caystrus Alcock (3), p. 181. 



Diego Garcia, lagoon; 1 ?. Coetivy; 13 $, 11 ?. 



147. Epixanthus corrosus A. Milne Edwards. 



Epixanthus corrosus A. Milne Edwards, Nouv. Arch. Mus. Hist., Paris, ix. 1873, 

 p. 241, pi. 9, figs. 1, 1 a. De Man, Arch. f. Naturg., liii. 1888, p. 292, pi. 11, fig. 3. 

 Peros, Coin ; 1 «?, 1 ?. 

 $, C. 1. 12 nun., C. b. 19-8 mm. 



