360 Dr. Leacn’s Arrangement of the Crustacea, óc. 
Spec. 4, Gammarus Campylops. 
G. oculis flexuosis. 
Gammarus campylops. Leach, Edin, Encycl. vii. 403. 
Habitat in mari prope Loch-Ranza in Arran Insulä. 
Gen. 10. AMPITHOE. 
Antenne superiores seta nullä ad articuli quarti basin. Cauda 
superne haud fasciculato-spinosa. Manus ovate. 
Spec. 1. Ampithöe rubricata. 
Cancer Gammarus rubricatus. Montagu, Linn. Trans. ix. 99. 
Gammarus rubricatus. Leach, Edin. Encycl. vii. 402. 
Ampitióe rubricata. Leach, Edin. Encycl. vii. 432. 
Gen. 11. PHERUSA.. 
Antenne superiores setä nullä ad articuli quarti basin. Cauda 
superne haud fasciculato-spinosa. Manus filiformes. | 
Spec.1. Pherusa fucicola. 
P. testaceo-cinerea aut griseo-cinerea rubro-varia. - 
Pherusa fucicola. Leach, Edin. Encycl. vii. 432. 
Habitat inter fucos in Danmoniz australis mari rarius. 
DIVISIO V. 
Antenne 4-articulate, inferiores longiores, pediformes. (Pedes 
quatuor antici monodactyli.) 
SUBDIVISIO 1l. 
Pedum par secundum manu magna. ' 
Gen. 12. PopocEnvs. . 
Oculi prominuli. Pedum paria duo antica monodactyla. 
Spec. 1. 
