No.n;;6. OBSERVATIONS ON THE ASTACIDJ:— FAXON. 677 



CHERAPS QUINQUE-CARINATUS (Gray). 



Asiacus quinquc-carinatus Gray, Eyre's Journals of Expeditions of Discovery 

 into Central Australia, I, p. 410, pi. iii, fig. 3, 1845; List. Crust. ISrit. Mus., 

 p. 72, 1847 (no description). — Erichsox, Arch. f. Naturgesch., 12ter Jahrg., 

 I, p. 376, 1846 (after Gray). — vox Martens, ISIouatsber. Akad. AVissensch. 

 Berlin, 1868, p. 616 (after Gray). 



Asiacopsis qutnqin-earinatus Haswell, Cat. Australian Stalk- and Sessile-eyed 

 Crust., p. 176, 1882 (after Gray). 



Habitat. — Western Australia, near Swan River (Gray). 



CHERAPS QUADRICARINATUS (von Martens). 



Asiacus quadncarinatus vox Martens, Monatsher. Akad. Wissenscb. Berlin, 1868, 



p. 617. 

 Astacopsis quadricarinatus Haswell, Cat. Australian Stalk- and Sessile-eyed 



Crust., p. 177, 1882 (after von Martens). 



Habitat. — Cape York, Australia (von Martens), Type in Berlin 

 Zoological Museum, No. 2972 (von Martens). 



Genus PARANEPHROPS White. 



Paraneiilirops White, Gray's Zoolog. Miscell., No. 2, p. 79, 1842. 

 Type, Paranephrops planifrons White. 



liostrum triangular, upper surface plane or subplane, margins raised 

 and armed with spines or teeth. Carapace more or less spiny or tuber- 

 culate (at least in large individuals). Chehie more or less armed with 

 spines and teeth. Form astacoid. Branchial formula: 



AETHROBRANCHIjE. 



Somite. Podobranchi.-f.. ' . PLEUEOBRANrHi.*:. 



Anterior. Posterior. 



YII. . . . 0(ep/-) ..0....0....0 = O(epr) 



VIII. ...1....1....0....0 =2 



IX. ... 1 .... 1 .... 1 .... =3 



X. ... 1 .... 1 .... 1 .... =3 



XI. ... 1 .... 1 .... 1 .... 1 =4 



XII. ...1....1....1....1 =4 



XIII. ... 1 .... 1 ....)•.... 1 = 3+r 



XIV. ...0....0....0....1 =1 



(l+.-l, ,• + G 4- 4-fr -f 4 r= 20+/--fep/- 



Habitat. — New Zealand.' 



' Huxley (Proc. Zool. See. London, 1878, p. 771) mentions two specimens of a 

 raran(plirop>s in the British Museum, said to have come from the Fiji Islands. 

 Mr. Edward J. Miers wrote to me, February 4, 1894, that he could not find any such 

 s])eeiniens in the collection of the British ^Museum. Mr. Charles Chilton, of Christ- 

 ehurch. New Zealand, to whom I am indebted for a fine collection of the crayfishes 

 of that country, has been at some pains to procure specimens of the fresh-water 

 Crustacea of the Fijis, and he informs me that all the "crayfishes" have proved 

 to be fresh-water prawns {PaUtinon). It is probable that the specimens of I'ara- 

 vipltrops labelled " Fiji Islands" in the British Museum were assigned to the wrong 

 locality. 



