260 



as long as the three preceding joints combined, the fingers slightly longer than 

 the palm. 



The dactyli of the legs are about half the length of the propodites and have 

 the posterior border serrated. 



There are no epipodites on any of the thoracic legs. 

 Colour in life pink. 



In the male the length of the fully extended body is 38 millim., and that of 

 the chelipeds 27 millim. 



Arabian Sea, off the Travancore coast, 430 fathoms. 



AT 2346-2347 /r p p , i 



Regd. JMos. ^ (lypes of the species). 



29. Munidopsis ( Gcilathodes) trifida, Henderson. 



Uunidopsis trifida, Henderson, Ann. Mag. Nat. Hist. (5) XVI. 1885, p. 415, and Challenger Anomura, p. 156, 

 pi. xvi. fig. 2 : Alcock and Anderson, J.A.S.B. Vol. LXIII. pt. 2, 1894, p. 168. 



Galathodes trifidus, Milne Edwards and Bouvier, Ann. Sci. Nat. Zool. (7) XVI. 1894, p. 279. 



No epipodites on any of the thoracic legs. 



Body and appendages tomentose. Carapace when denuded transversely 

 rugose, especially postero-laterally. 



Eostrum about half the length of the carapace proper : its distal half is 

 acutely styliform, but its basal half is broad and vertically compressed and ends 

 in a pair of spines, one on each side of the styliform ending. 



The very oblique frontal border of the carapace is armed with a spinule, 

 post-antennal in position, and there is a large spine below the frontal margin, 

 between the eye and the antenna. The lateral margins are armed with 4 large 

 procurved spines. The posterior border is smooth. The only spines on the 

 dorsum of the carapace are a large pair on the anterior portion of the gastric 

 region. There are no spines on the abdomen. 



The eyes are movable and are terminal on the eyestalks. 



The chelipeds in both sexes are longer than the body, and in the male have 

 massive hands : the ischium has three longitudinal rows of large spines and 4 

 large terminal spines : the carpus has two rows of spines and 3 terminal spines : 

 both edges of the outer surface of the palm are spinose : the fingers are as long 

 as the palm, and in the male the cutting edge of the fixed finger is excavated at 

 its proximal end to give room to a large molariform tooth on the opposed edge 

 of the dactylus : in the female the fingers are straight. 



The next three pairs of legs are much shorter than the chelipeds : their 

 merus and carpus are spinose along the anterior margin, and their dactylus, 

 which is about half the length of the propodite, has the posterior margin 

 serrated. 



