CRAYFISHES. 403 
CHERAPS Erichson. 
Cueraps Erichson, Arch. Naturgesch., 1846, 12, 1, p. 101. 
1. CHERAPS PREISSII. 
Astacus (Cheraps) preissti Erichson, Arch. Naturgesch., 1846, 12, 1, p. 101. 
?Astacoides plebejus Hess, Arch. Naturgesch., 1865, 31, 1, p.164. Type local- 
ity:— Sydney, Australia. Type, Gottingen Mus. 
Type locality:— Southwestern Australia. 
2. CHERAPS BICARINATUS. 
Astacus bicarinatus Gray, Eyre’s Journals of Expeditions of Discovery into 
Central Australia, 1845, 1, p. 410. 
Type locality:— Port Essington, North Australia. 
3. CHERAPS QUADRICARINATUS. 
Astacus quadricarinatus Martens, Monatsber. Akad. Wissensch. Berlin, 
1868, p. 617. 
Type locality:— Cape York, Australia. Type, Berlin Mus., No. 2972. 
4. CHERAPS QUINQUECARINATUS. 
Astacus quinquecarinatus Gray, Eyre’s Journals of Expeditions of Discovery 
into Central Australia, 1845, 1, p. 410. 
Type locality:— Western Australia, near Swan River. 
ENGAEUS Erichson. 
Encagus Erichson, Arch. Naturgesch., 1846, 12, 1, p. 102. 
1. ENGAEUS FOSSOR. 
Astacus (Engaeus) fossor Erichson, Arch. Naturgesch., 1846, 12, 1, p. 102. 
Type locality:— Tasmania. Types, Berlin Mus., Nos. 1123, 1124. 
2. ENGAEUS CUNICULARIUS. 
Astacus (Hngaeus) cunicularius Erichson, Arch. Naturgesch., 1846, 12, 1, 
p- 102. 
Engaeus cunicularis Haswell, Cat. Australian Stalk- and Sessile-eyed Crus- 
tacea, 1882, p. 179. (Err. typograph.?) 
Type locality:— Tasmania. Type, Berlin Mus., No. 1122. 
PaRANEPHROPS White. 
ParaNEPHRoPS White, Gray’s Zool. Miscell., June, 1842, p. 79. 
1. PARANEPHROPS PLANIFRONS. 
Paranephrops planifrons White, Gray’s Zodl. Miscell., June, 1842, p. 79. 
