248 COLLECTIONS FROM MELANESIA. 



synonyms by giving a new designation to a female example and one 

 so doubtfully distinct. I sbould add, however, that in Dr. Cop- 

 pinger's specimen there is scarcely any trace of pubescence on the 

 middle part of the dorsal surface of the carapace, which is probably 

 worn smooth by abrasion. 



Two females received in the second collection from the same 

 locality, 1G fms. (No. 137), are of larger size, uniformly tomcntose, 

 and the maxillipedc (in one specimen examined) is less distinctly 

 truncated at its distal end ; they cannot, however, be regarded as 

 belonging to a distinct species. 



93. Mycteris longicarpus, Latr. 



Port Molle ; four specimens (two males and two females) were 

 obtained on tbe beach (No. 95). 



Specimens are in the British-Museum collection from PortEssing- 

 ton (J. Gould); Nicol Bay, N.W. Australia (M. du Boulay); Sydney; 

 Port Jackson (Antarctic Expedition) ; Swan River (Bring) ; Tasmania 

 (B. Gunn); and others without special locality. Also from New 

 Guinea (liev. W. Y. Turner): Billiton Island (Marquis of Tweeddale); 

 Timor Laut (H. 0. Forbes) ; Philippines, Negros (Cuming) ; and 

 China seas (Swirihoe). 



It is recorded by M. A. Milne-Edwards from New Caledonia. 



I think it is very doubtful whether Mycteris brevidactylus, Stimp- 

 son *, from the Loo-choo Islands, can be regarded as distinct from 

 this species. 



Of the closely allied Mycteris platycheles, M. -Edwards, there are 

 specimens in the British-Museum collection from Broken Bay 

 (J. Macgillivray, H.M.S. ' Battlesuake '), Tasmania (Dring, Litvt. A. 

 Smith), and others without special indication of locality. "With 

 this latter species, Mycteris subverrucatus of White f and Kinahan + 

 is identical. 



94. Halicarcinus ovatus, Stimpson. 



Port Jackson, 0-7 fms. (No. 104). Four specimens, two males 

 and two females. 



In the 'Catalogue of New-Zealand Crustacea,' p. 49 (1876), I 

 united this form with Halicarcinus planatus (Eabr.) ; but after a 

 closer examination of a larger series of Australian specimens, I was 

 inclined to think that it might after all be distinctly characterized by 

 relatively larger and more closely approximated frontal lobes which 

 are less hairy above. Accordingly the citation of this species was 

 not included among the synonymical references to H. planatus in 

 my notice of that species in the Report on the Crustacea of Ker- 

 guelen Island §. 



* Proc. Acad. Nat. Sci. Philad. p. 99 (1858). 



+ List Crust. Brit. Mas. p. 34 (1847). 



\ Journ. Roy. Dublin Soc. i. p. 123 (1858). 



§ Phil. Trans, clxviii. p. 201 (1879). 



