352 RECORDS OF THE AUSTRALIAN MUSEUM. 



aa. Dactylus of third leg longer than the propodus. 



c. Inner faces of hands with raised, file-like stridulating 

 surfaces. Reddish, legs with yellow spots 



. . .strigimanus. 



cc. Inner faces of hands without stridulating surfaces. Legs 



longitudinally banded. 



d. Carapace remarkably flattened. Carapace and all its 



appendages with conspicuous, dark, longitudinal 



bands -, enrystei'nus. 



dd. Carapace normal, not remarkably flattened. 



e. Eye-stalks shorter than the antennular peduncles. 

 Arms of chelipeds with a prominent tubercle 



or obtuse spine below infraspinatus. 



ee. Eye-stalks as long as or longer than antennular 

 peduncles. 

 /. Spines on chelipeds very large, wrist with 

 several strong spines. Carapace as well as legs 



with striking colour bands keniatus. 



ff. Spines on chelipeds smaller, wrist with only 1-2 

 spines. Markings on the carapace indefinite or 

 absent. 

 g. Hands about twice as long as broad. Rostrum 

 but little more prominent than antennal angles. 

 Eye-stalks as long as front of carapace 



...striolatus. 

 gg. Hands more than twice as long as broad. 

 Rostrum more prominent than antennal angles. 

 Eyestalks longer than front of carapace 



...padawmsis. 



Petrolisthks elongatus, Milne Edwards. 



Petroli8tli.es elongatns (Milne Edwards), Miers, Cat. Crust. N. 

 Zealand, 1876, p. 60. Id., Haswell, Cat. Austr. Crust., 

 1882, p. 146 (after Miers). 



Hab. — According to Miers, this common New Zealand species 

 occurs rarely on the Australian coast. As there does not appear 

 to be anj T other reference in which a definite Australian locality 

 is assigned to it, I take this opportunity of recording specimens 

 received from Professor J. Thomson Fly nn, who collected them 

 in the estuary of the Derwent River, Tasmania, where the 

 species is very common. 



