26 CRUSTACEA FROM PORT CURTIS DISTRICT, QUEENSLAND, 



being in a sufficiently perfect state for description. Its habitat 

 appears to be the coarse white coral sand in the moderate 

 depths surrounding the reefs — an environment in which its small 

 size, rugose exterior, and brilliant ivory white colour must be of 

 great service to it for purposes of concealment. 



The nearest ally of our species appears to be C. pentagonits 

 Stimpson, which is figured by Miers,* and from which it differs 

 in the proportions of the carapace and the crenulations of the 

 margins. The hands of that species do not appear to have been 

 figured. From C. haddoni Caiman, from Torres Straits, it 

 differs in the possession of the very marked crests on the 

 chelipeds, in the crenulation of the margins, in the shape of the 

 front and in other details. From the other described species of 

 the genus, viz., G. holdsworthi Miers, C. grandidieri A.M.Edw., 

 and C. obolus Ortmann, the differences are too marked to be 

 worthy of repetition here. 



Family DORIPPID^E. 

 Dorippe australiensis Miers. 

 1884. Miers, Zool. H.M.S. " Alert," p.258, pi. xxvi. fig.D. 

 Port Curtis; a good series dredged in 7 fathoms. 

 The specimens in the Australian Museum referred to D. astuta 

 Fabr., and so included by Haswell in his " Catalogue of Austra- 

 lian Crustacea" (p. 136) belong to the above species, the 

 description of which was published subsequent to the Catalogue. 

 D. astuta must consequently be excluded from our fauna. 



Tribe OXYRHYNCHA. 

 Family MAIID^E. 

 AcHiEUS lackrtosus Stimpson. (Plate iii. fi'g.l). 

 1857. Stimpson, Proc. Acad. Nat. Sci. Philad. p.218. 

 1895. Alcock, Journ. Asiatic Soc. Bengal, lxiv. (2) p.172. 

 Mast Head Island; one female specimen. 



This species does not appear to have been previously figured. 

 We submit a drawing of a male specimen from Port Jackson, 

 11mm. long. 



*Pioc. Zool. Soc. 1879, p. 43, pi. ii. fig.5. 



