676 PROCEEDINGS OF THE NATIONAL MUSEUM. 



Habitat, — Australia (Milne-Edwards), Sydney, Australia (Heller). 

 Length about 2 inches (Milne-Edwards), 2£ inches (Heller). Color 

 greenish (Heller, as also in Milne-Edwards's figure). 

 Probably an immature specimen of an Astacopsis, possibly A. nobilis. 



"ASTACUS" TASMANICUS Erichson. 



Astacus tasmanicus Erichson, Arch. f. Naturgesch., 12ter Jahrg., I, p. 94, 1846. — 

 von Martens, Monatsber. Akad. Wissensch. Berlin, 1868, p. 618. 



Astacopsis tasmanicus Haswell, Cat. Australian Stalk- and Sessile-eyed Crust., 

 p. 178, 1882 (after von Martens). 



Habitat. — Tasmania. Type in Berlin Zoological Museum, ISTo. 1579, 

 female (von Martens). 



"ENG.EUS" FOSSOR Erichson. 



Astacus (Engams) fossor Erichson, Arch. f. Naturgesch., 12ter. Jahrg., I, 



p. 102, 1846. 

 Astacus fossor von Martens, Monatsber. Akad. Wissensch. Berlin, 1868, p. 618. 

 Engwus fossor Haswell, Cat. Australian Stalk- and Sessile-eyed Crust., p. 178, 



1882 (after von Martens). 



Habitat. — Tasmania (Erichson, von Martens), Australia (von Mar tens). 

 Types in Berlin Zoological Museum, Nos. 1123, 1124 (von Martens). 



"ENG/EUS" CUNICULARIS Erichson. 



Astacus (Engatus) cunicularis Erichson, Arch. f. Naturgesch., 12ter Jahrg., I, p. 



102, 1846. 

 Astacus cunicularis von Martens, Monatsber. Akad. Wissensch. Berlin, 1868, p. 



619. 

 Engwus cunicularis Haswell, Cat. Australian Stalk- and Sessile-eyed Crust., p. 



179, 1882 (after von Martens). 



Habitat. — Tasmania (Erichson, von Martens). Type in Berlin Zoo- 

 logical Museum, No. 1122 (von Martens). 



"ASTACOIDES" PLEBEJUS Hess. 



Astaco'ides plebejus Hess, Arch. f. Naturgesch., 31ter Jahrg., I, p. 164, pi. vii, 



fig. 17, 1865. 

 Astacus pleoejus von Martens, Monatsber. Akad. Wissensch. Berlin, 1868, p. 



616 (after Hess). 

 Astacopsis pleoejus Haswell, Cat. Australian Stalk- and Sessile-eyed Crust., p. 



175, 1882 (after Hess). 



Habitat. — Sydney, Australia (Hess). Type in Gottingen Museum 

 (Hess). 



This is probably a Cheraps — G.preissii Erichson, or else C. bicarinatus 



(Gray). (See p. 672.) 



