CETJSTAOEA. 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 Hypoeoius ictviJjptv.s (M.- 

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

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



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

 no specimens of -ff. punctatvs except the unique type example. Of 

 H. sculptiis there are in the Museum three speoiinens — one from 

 the Red Sea {J.' Burton), one from the Gulf of Suez (R. Mac Andrew), 

 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, N.E. coast of Australia (No. 151), are retained for the British 

 Museum. 



Specimen? are in the national collection from Port Essington, 

 Trinity Bay {J. MacgiUivray, H.M.S. ' Rattlesnake ')i and Swan 

 Eiver {H. Bring) ; also from Port Natal (purchased), and from 

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

 bollong, and Amboina {Br. P. Sleeker); Indian Ocean {Old 

 Collection) ; Ceylon, GaUe {Dr. W. Ondaatje) ; Duke of York 

 Island {Bev. C. Brown) ; Sunday Island {J. B. Jukes) ; Miuerva 

 Eeef {H.M.S. 'Herald'); Piji Islands, Ovalau, Totoya {H.M.S. 

 ' Herald') ; Samoa Islands, Upolu {Rev. S. J, Whitmee) ; and others 

 with less definite indication of locality. 



36. Lophozozymus epheliticus {Linn.). 



Port MoUe (No. 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 GrenyiUe (as L. octo- 

 dentatus). 



Specimens are in the collection of the British Museum from New 

 South "Wales {G. Krefft); Damley Island {J. B. Juices); Nicol 

 Bay, N.W. Australia {Mr. Du Boulay) ; Philippine Islands {Cuming) ; 

 Java {Bleeker Collection) ; 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. 



