MACRURA. 



77 



The Ceylon specimens are marine. Borradaile's Figi specimens were obtained 

 from fresh water. 



General distribution : Figi and Ceylon. 



Family: PONTONIIDiE. 



Conchodytes, Peters, 1851. 



Conchodytes nieleagrinae, Peters. 



Conchodytes meleagrinae, Peters, ' Ges. naturf. Freunde, Berlin,' 1851. 

 Pontonia meleagrinae, Bate, ' " Challenger " Macrura,' p. 707, 1888. 



Localities : Cheval Paar (Station XLVIII.), four 6 ; Cheval Paar (Station LIV.), 

 two <$ and two ? within Pinna ; West Cheval (Station LVIII. ) two S and two ? 

 from shell of Pinna. 



The mouth parts agree with Spence Bate's description of the thoracic legs, the 

 second pair are very massive and are longer than the body. The ischium, meros and 

 carpos are subequal in length, and the three together are shorter than the palm, 

 which is long and massive and more than twice as long as the fingers. The 1st, 3rd, 

 4th and 5th pairs are small, decreasing slightly in length from before backwards. 

 The distal joint of the last three pairs is triunguiculate. 



Dimensions of male specimen : - 



Total length from rostrum to end of telson 

 Length of carapace and rostrum 



1st thoracic leg 



2nd 



3rd 



4th 



5th 



24 millims. 



10 



12 



27 



11 



10 



10 



General distribution : East Africa, Torres Straits, New Guinea, Pacific, Ceylon. 



Anchistus, Borradaile, 1898. 



Anchistus inermis (Miers). 



Harpilus inermis, Miers, ' Zool. Coll. of " Alert," ' 1884. 



Anchistns inermis, Borradaile, ' Ann. Mag. Nat. Hist.' (7), ii., 189S. 



Localities: Pearl banks, Gulf of Manaar (Station III.), three c? and two ?; 

 Cheval Paar (Station XLVIII), three <$ and three ? . 



There is nothing to add to the original description. In most of the specimens the 

 sides of the carapace and abdomen are only very slightly calcified. 



General distribution : West Australia, Ceylon. 



