BY "WILLIAM A. HASWELL, M.A., B.SC. 455 



Genus Gonatonotus, Adams and White. 



56. Gonatonotus pentagonus, Adams and White. 



Gonatonotus pentagonus, Adams and White, Zool. " Samarang " Crust, p. 33, 

 pi. vi., fig. 7. 



Hab. Coast of Borneo (H. M. S. " Samarang") ; Port Denison 

 5 fathoms (Mr. Alex. Morton). 



57. Gonatonotus crassimanus, sp. nov. Plate xxvi., fig. 4. 



Carapace and limbs covered with miliary granulatious. Rostrum 

 deeply cleft anteriorly, the cornua straight — the cleft continued 

 on the dorsal surface of the carapace into a mesial groove which 

 reaches nearly half-way towards the posterior border. Branchio- 

 cardiac groove very deep. Anterior limbs once and a-half as 

 long as the carapace, second and third joints each with a small 

 compressed tooth on its anterior margin ; fourth joint armed with 

 a prominent slightly curved tooth ; hand with two strong blunt 

 teeth above, fingers stout, acuminate, armed with a few triangular 

 teeth. Posterior limbs carinate above, the carina on the third 

 joint with two inconspicuous tubercles, and ending distally in a 

 tooth-like process. Length five and a-half lines ; breadth four 

 and a-half. 



Sab. Port Jackson (Australian Museum). 



This species marks a transition towards Eumedonus, being only 

 distinguishable from that genus by the straight rostrum. It 

 differs from G. pentagonus in the more deeply cleft rostrum t as 

 well as in the greater length of the lateral process, and other points. 



Genus Habrovia, Adams and White. 



58. Harrovia tuberculata, sp. nov. Plate xxvii., fig. 1. 



Dorsal surface of carapace with eight tubercles crowned with 

 bundles of hairs, four of them on the gastric region in pairs, the 

 anterior pair situated far apart, the posterior close together ; two 

 close together in the same transverse line on the anterior part of 



