CATALOGUE OF BBITISH CRUSTACEA. 
21 
1. Atelecyclus septemdentatus. The Face-Crab. 
Cancer (Hippa) septemdentatus, Mont. Linn. Trans, xi. t. 1, f. 1. 
Atelecyclus septemdentatus, Leach, Ed. Enc. vii. p. 430 ; Linn. 
Trans. Soc. xi. p. 313. 
Corystes (Clorodius) 7-dentata, Haan, Faun. Jap. p. 14. 
Atelecyclus heterodon, Leach, Mai. Pod. Brit. t. ii. f. 1 — 4; Sa- 
mouelle, Ent. U. Comp. p. 83 ; Bell, Brit. Crust, p. 153. 
Old Man’s-Face Crab (local name, Devon). 
a — e. Bell Rock, Scotland. Presented by R. Stevenson, Esq., 
C.E. 
/. — h. Coast of Devon. From the collections of Col. Montagu and 
Dr. Leach. 
2. THIA. 
Thia, Leach, Linn. Trans, xi. p. 312. 
Corystes (subg. Thia), Haan, Faun. Jap. p. 14. 
2. Thia polita. Polished Crab. 
Thia polita, Leach, Linn. Trans, xi. p. 312; Zool. Misc. ii. t. 103 ; 
Guer. Icon. R. A. Crust, t. 2, f. 3 ; M. Edw. Crust, ii. p. 144. 
Cancer residuus, Herbst, p. 3, 53, t. 48, f. 1 ??? 
Corystes (Thia) polita, Haan, Faun. Jap. p. 14. 
a. Ireland (Roundstone, Connemara). Presented by Dr. Scouler. 
2. CORYSTES. 
Corystes, Latr. Hist. Nat. Crust, vi. p. 121 (1803). 
Corystes (subg. Corystes), Haan, Faun. Jap. p. 15. 
Albunea, sp. Fabr. Ent. Syst. Suppl. p. 397. 
Cancer, sp. Penn. 
2. Corystes cassivelaun us. Pennants’s Long-armed Crab. 
Cancer cassivelaun us, Penn. Brit. Zool. edit. 1777, iv. t. 7, p. 5, f. 
13 ; Herbst, i. t. xii. f. 72. $ . 
Cancer personatus, Herbst, t. xii. f. 71. $ . 
Albunea dentata, Fabr. Ent. Syst. Suppl. 398; Lam. Syst. An. 
sans Vert. p. 156. 
