AUSTRALIAN MALACOSTRACA. 163 



jecting far beyond the others. Chelipedes longer than the body, 

 with few spines, the propodos short and narrow, the fingers not 

 gaping. Length f in. 



Holborn Island, 20 fathoms ; Port Molle, 14 fathoms (W. A.H., 

 H.M.S. "Alert"). 



308. Galathea elegans. ? 



? Galathea elegans, Adams and "White, Zoology of the 

 "Samarang," Crustacea, pi. xii., fig. 7. 



Eostrum very long, more than half the length of the rest of 

 the carapace, triangular, nearly entire, with seven small denticu- 

 lations on each side. Lateral borders of the carapace with about 

 a dozen sharp spinous teeth. Chelipedes very long, twice as 

 long as the carapace and rostrum, slender, with few spines ; 

 fingers not gaping, not half the length of the hand. Colour 

 yellowish, with three narrow longitudinal dark purple bands on 

 the body, and one on either side of the chelipedes and ambulatory 

 legs. Length f in. 



Holborn Island, 20 fathoms. 



The chelipedes in the single specimen are very much longer 

 and more slender than in the figure in the Voyage of the 

 " Samarang." 



309. Galathea deflexifrons. 

 Galathea deflexifrons, Haswell, 1. c. 



Closely allied to the preceding, distinguished from it only by 

 having the rostrum distinctly deflexed, and the denticles on its 

 borders almost obsolete. Colour dark purple. 



Albany Passage, among Comatulids (W. A. H., H. M. S. 

 "Alert"). 



Tribe MACKOUKA. 



Abdomen elongate, extended backward, with lamellar appen- 

 dages beneath. Appendages to the penultimate segment large, 

 laterally expanded, and constituting, with the terminal segment, 

 a fan-like swimming apparatus. Sternum usually linear through- 

 out its length. Antennae very greatly developed, inner without 

 f ossettes. External maxillipedes nearly always pedif orm. Buccal 

 cavity not distinctly defined in front. 



