14 Fulton and Grant: 



family^ to entitle them to specific rank. The species in its 

 general appearance .strongly suggests Trypaea australiensis, 

 Dana, from which it differs in the inner antennae not bearing 

 a deep, comb-like fringe of hairs, in the shape of the larger 

 chelipede and in other features. 



We have taken it burrowing in muddy flats in both Port 

 Phillip and Western Port. 



The type will be deposited with the National Museum, 

 Melbourne, and a co-type with the Australian Museum, Sydney. 



Genus Trypaea, Dana. 



" Near Callianassa in outer maxillipeds and feet, inner antennae 

 sub-pediform, flagella shorter than last basal joint." — (Dana). 



Trypaea australiensis, Dana. 



Trypaea australiensis, Dana. U.S. Explor. Exped. Crust., 



1852, 1, p. 573, pi. 32, fig. 4a, b, c, 

 Trypaea porcellana, Kinahan. Jour. Roy. Dublin Soc, 

 1, 1858, p. 130, pi. 4, fig. 2. 



"Front not triangular, anterior feet much compressed, arm, 

 carpus and hand having an acute edge above. Larger hand broad, 

 smooth, but little longer than carpus ; fingers nearly half as long 

 as hand not gaping, finely denticulate within, superior finger a 

 little the longer, arcuate; carpus somewhat smaller than hand, arm 

 having a cultriform process below near the base ; caudal segment 

 about as long as broad, nearly rounded at apex, length two and 

 three-fourths inches. Eyes on very short peduncles. Outer 

 antennae about half as long as body. Fingers with a few short 

 tufts of hair. Lower as well as upper edge of hand, arm and 

 carpus acute. 



District of Illawarra, New South Wales, along shores." — (Dana). 



Trypaea australiensis was described by Dana from a specimen 

 taken at Illawarra, N.S.W. It is exceedingly abundant, burrow- 

 ing in muddy flats at many parts of our coast and in New South 

 Wales, and we have a large series from numerous collecting 

 grounds, including the type locality of Dana. 



1 Marine Investigations of South Afrioa, 1903, p 38. 



