BY F. E. GRANT AND ALLAN R. McCULLOCH. 41 



a comparison of it with the large series before us and with Dana's 

 figure, convince us that he is in error in this conclusion. P. pul- 

 chella, which has been well figured by Miers,* differs markedly 

 from that under consideration in the sculpture of the chelipeds, 

 in the rugosity of the dorsum of the carapace, and in other 

 features. 



Ortmann (loc. cit.) has shown that P. pulchella is a synonym 

 of P. pisum M.Edw., as is also P. sculpta De Man (nee. M.Edw.); 

 and has thrown much light on the synonymy of that species and 

 the one now under consideration. 



We are unable to refer to the figure of this species given by 

 Krauss,f and that of Dana being scarcely adequate for recogni- 

 tion, we submit a further drawing of one of our specimens with 

 the following notes. 



The frontal and hepatic regions are very rugose, and there are 

 irregular transverse raised ridges on the frontal region and two 

 large ornate bosses on each hepatic region. 



The wrists are ornamented with about five rows of tubercles, 

 each of which is margined anteriorly with a fringe of setse. The 

 palm is similarly ornamented on its outer surface. The fingers 

 are somewhat variable and are ornamented with rows of elongate- 

 imbricate tubercles fringed with setae, which are more pronounced 

 on the mobile finger. 



The front is reflexed and truncate, and has a deep transverse 

 sulcus, which is sometimes only faintly indicated. The carapace 

 varies considerably in width. 



Length of carapace 5 mm . 



Breadth ,, 4 ,, 



Length of cheliped 10"5 ,, 



PoLroNYX obesulus Miers (?). 

 1884. Miers, Zool. H.M.S. " Alert," p.272, pl.xxix. fig. 7. 

 1893. Henderson, Trans. Linn. Soc. Lond. (2) Zool. v. p. 430. 



To this species we refer a single imperfect specimen from 

 Port Curtis, dredged in 7 fathoms. 



*Miers, Zool. H.M.S. "Alert," p.273, pl.xxx. fig. A., 1SS4. 

 t Krauss, Siidafr. Crust, p.58, Tab. iv. fig.l, 1843. 



