20 CRUSTACEA FROM PORT CURTIS DISTRICT, QUEENSLAND, 



Miers in the " Challenger " Reports states that this species is 

 "rather common in ... . Australian Seas " — we cannot, 

 howevei', trace in literature any definite record of its occurrence 

 on our coast. 



Tribe CATOMETOPA. 



Family OCYPODID^. 



OCYPODA CERATOPHTHALMA (Pallas). 



1882. Haswell, Cat. Aust. Crust, p.94. 



Mast Head Island; common on the beach, boring deep holes in 

 the sand above high-water mark. This species is nocturnal in its 

 habits, and a good series was taken running swiftly on the sands 

 in the moonlight. None were observed moving in the daylight. 



Uca dussumieri (M.Edw.). 



1852. Gelasimus dussumieri, H. Milne Edwards, Ann. Sci. Nat. 



Zool. (3) xviii. p. 148, pi. iv. fig.12. 

 1887. Gelasimus dussumieri, de Man, Journ. Linn. Soc. Zool. xxii. 

 p. 108, pi. vii. figs. 2-7. 



Port Curtis; very common on mud banks amongst mangroves 

 between tide marks. 



A large series was taken exhibiting all stages of the growth of 

 the large cheliped in the male. In the smallest specimen, which 

 has the hand 6 mm. in length, the fingers meet along the whole 

 of their trenchant borders. As the specimens become more adult 

 a gape is developed commencing at the base of the fingers and 

 extending proximally with age; for a long time, however, they 

 meet on their trenchant borders for at least a third of their 

 length. The largest specimen taken has the large hand 40 mm. 

 long and the gape at its greatest width 5 mm. 



Uca arcuata (De Haan). 



1835. Ocypode (Gelasimus) arcuatus De Haan, Faun. Japon. Crust. 



p. 53, pi. vii. fig. 2. 

 1905. Stebbing, Marine Investg. South Africa, p. 40. 

 Port Curtis; on mud banks. 



