AUSTEALIAN MAIACOSTBACA. 99 



Dactyli long, somewhat curved, acute, and covered, together with 

 the under side of the propoda, with short hairs. Carpus with a 

 small toothed process on the inner border. Hand and fingers 

 smooth, very small, the latter without teeth. [-Sess.J 

 Sydney (Gottingen Museum). 



G-enus Goniogeapsijs, Dana. 

 Carapace crossed transversely by numerous raised lines, sub- 

 quadrate, sides straight, often convergent backwards. Front 

 longer than half the breadth of the carapace. Antennae usually 

 exserted from beneath the front. External maxillipedes with a 

 lozenge-shaped space. Tarsi armed with spinules. [D.] 



177. Goniograpsus Thukujar. A.M. 

 Grapsus Thukujar, Owen, Crust, of the Blossom. 

 Pachygrapsus parallelus, Randall, Proc. Acad. Nat. Sci. 



Philad. 



Goniograpsus Thukujar, Dana, U.S. Explor. Exped., Crust., i., 

 p. 344. 



Surface nearly smooth. Eront bending downwards rather 

 abruptly, and becoming nearly vertical. Sides converging some- 

 what backwards. Antero-lateral margins entire. Third joint of 

 the posterior legs with three small teeth at the lower apex. 

 Hand and carpus slightly rugate above, but the outer surface of 

 the hand smooth, with a single raised line near its lower side. 



Port Denison, etc. ; common on the tropical parts of the coast. 

 Pound previously at the Sandwich Islands, Eijis, Samoa. 



G-enus Pianes, Leach. 

 Carapace longer than broad, nearly quadrate, front straight, 

 sides very slightly curved. External maxillipedes having between 

 them a vacant space when closed, the third joint somewhat 

 cordate in shape. Legs short and smooth, tarsi armed with 

 spines. 



178. Planes minutus. 



Cancer minutus, Linn. Syst. Nat. (ed. xii.), p. 1048 (1766). 

 Nautilogrcvpsus minutus, M.-Edw., Hist. Nat. Crust., ii., p. 90 

 (1837). 



