CRUSTACEA. 207 



nearly as in H. sculptus. The ambulatory legs are slender, with 

 the penultimate and antepenultimate joints rugose and pitted. The 

 colour (in a spirit-specimen) is reddish upon a yellowish ground. 

 Length of carapace 8| lines (18 millim.), breadth about 1 inch 

 (25 millim.). 



A single male was obtained at Thursday Island, 3-4 fms. 

 (No. 175). 



It may be at once distinguished from Hgpoccelus scutptvs (M..- 

 Edwards) and H. granulatus (De Haan) by the crest or ridge 

 dividing the cavities of the pterygostomian regions (fig. L). 



The species of this curious genus appear to be rare. I have seen 

 no specimens of H. punctatus except the unique type example. Of 

 H. scnlptus there are in the Museum three specimens — one from 

 the Red Sea (J. Burton), one from the Gulf of Suez (R. MacAndrew), 

 and one from the Mauritius. Of H. granulatus there is but one 

 specimen, a mutilated male without indication of locality, in the 

 national collection. 



35. Atergatis floridus {Linn.). 



Of this very common and widely distributed species five specimens 

 (males and females), obtained on a coral-reef at the Clairmont 

 Islands, X.E. coast of Australia (Xo. 151), are retained for the British 

 Museum. 



Specimens are in the national collection from Port Essington, 

 Trinity Bay (J. MacgUUvray, H.M.S. ' Rattlesnake '), and Swan 

 River (H. Bring) ; also from Port Xatal (purchased), and from 

 the Philippine Islands, Guimaras (H. Cuming) ; Java, Karang- 

 bollong, and Amboina (Dr. P. Bleeker) ; Indian Ocean (Old 

 Collection) ; Ceylon, Galle (Dr. W. Ondaatje) ; Duke of York 

 Island (Bev. G. Brown) ; Sunday Island (J. B. Juices) : Minerva 

 Reef (H.M.S. 'Herald'); Fiji Islands, Ovalau, Totoya (H.M.S. 

 ' Hi raid') ; Samoa Islands, Upolu (Rev. S. J. Whitmee) ; and others 

 with less definite indication of locality. 



36. Lophozozymus epheliticns (Linn.). 



Port Molle (Xo. 95). A small male, having the beautiful colora- 

 tion usual in this common species, was obtained on the beach. 



Mr. Haswell mentions its occurrence at Cape Grenville (as L. octo- 

 dentatus). 



Specimens are in the collection of the British Museum from Xew 

 South Wales (G. Krefft) ■ Darnley Island (J. B. Juices); Xicol 

 Bay, N.W. Australia (Mr. Dv, Boiday) ; Philippine Islands (Cuming) ; 

 Java (BleeTcer Collectioyi) ; and others without definite locality. 



The coloration, both in dry and spirit specimens, is variable ; 

 ordinarily carapace and legs are crimson or orange-red with white 

 spots, but sometimes the white greatly predominates, and the red 

 forms irregular patches and reticulating lines. 



