OBSERVATIONS ON THE ASTACIDJE— FAXON. 675 



ASTACOPSIS NOBILIS (Dana). 



Astavo'idcs nohilis Dana, U. S. Explov. Exped., XIII, Ft. 1, p. 526, 185:^; Atlas,])]. 



XXXIII, 1\<y. o, 1855.— Hess, Arch. f. Naturnesch., SlterJabrg., I, p. 164, 1,S65 



(G(ittiugea Mas.). — Heller, Eeise der Novara, Zool. Th., II, Pt 3,Crust.,i>. 



101, 1865. 

 AstacHH nobiJis vox Martens, Mouatsber. Akad. Wissenscli. Berlin, 1868, }). 616 



(after Daua, Hess, and Heller). 

 Aslacopnis nobills Haswell, Cat. Australian .Stalk- and Sessile-eyed Crust., p. 175 



1882 (after Daua). 



Habitat. — New Soatli Wales f (Daaa); Sydney, New South Wales 

 (Heller, Hess). 



Voii Martens and Haswell incline to identify this species with A. 

 franJdinii; Huxley with A. sptnifera. It seeins to me more likely that 

 it is a valid species, the Australian representative of the Tasmaniau A. 

 franTclinii. 



ASTACOPSIS PARAMATTENSIS Bate. 



Asfacopsis paramaffvnsis Bate, Kep. "Challeuger" Crust. Macrura, p. 202, pi. 

 xxvii, fig. 1, 1888. 



Habitat. — Paramatta Eiver, Sydney, Australia (Bate). 



Bate described this species from a single female specimen 04 ram. 

 (about 3f inches) long, collected by the "Challenger''' expedition. Asta- 

 copsis spinifera was collected at the same place (Paramatta Eiver, Syd- 

 ney), and I am inclined to think that A. paramattensis is nothing but a 

 young, small specimen of A. spinifera. It can be demonstrated that 

 among the Famstacime, as, for instance, in the genus Paranephrops, 

 the heavy armature of spines or tubercles may be acqnired only by 

 large individuals, long after sexual maturity has been reached. 



ASTACOPSIS SYDNEYENSIS Bate. 



Astacopsis si/dneiioisis Bate, Rep. " Challenger " Crust. Macrura, p. 204, jil. 

 xxvii, fig. 2, 1888. 



Habitat. — Sydney, Australia (Bate). 



Based on single female specimen in the "Challenger" collections, 50 

 mm. (about 2 inches) long. Probably an immature specimen of an 

 Astacopsis^ perhaps A. spinifera. 



"ASTACUS" AUSTRALASIENSIS Milne-Edwards. 



Astacus aualrdlasicnsia Milne-Edwards, Hist. Nat. des Crustacis, II, p. 332, pi. 



XXIV, figs. 1-5, 1837. — AuDOUiN et Milne-Edwards, Arcb, du Mus. d'Hist. 



Nat., II, p. 36, 1841. 

 Astacus aiistraUoisis Ericuson, Arch. f. Naturgesch.. 12ter, Jahrg., I, p. 94, 1846 



(after Milne-Edwards). — Heller, Reise der Novara, Zool. Tli., II, Pt. 3, 



Crust., p. 100, 1865.— VON Martens, Monatsber. Akad. Wissenscli. Berlin, 



1868, p. 618 (after Milne-Edwards and Heller). 

 Asfacopsis ((ustraUcnsis Haswell, Cat. Australian Stalk- aud Sessile-eyed Crust., 



p. 178, 1882 (after Milue-Ed wards). 



