ay BRITISH COPEPODA. 
Genus 9. Stanneiia, Boeck (1864). 
Anterior antenna 8-jointed; inner branch of the 
posterior antenna of moderate size, 3-jointed, median 
joint very small. Mandible-palp composed of a well- 
developed basal joint and two small 1-jointed branches. 
Masticatory segment of the maxilla provided with a 
few strong apical claws and two smaller setiferous 
digitate segments ; from the outer margin spring three 
small setiferous tubercles ; first pair of footjaws having 
one large terminal claw and three or four digitiform 
setose processes; second forming a grasping hand. 
All the branches of the swimming-feet 3-jointed, the 
inner branch of the first pair elongated, its first joint 
being often about as long as the whole outer branch ; 
last two joints small, and terminating in three long 
setze without any claw. Fifth pair fohaceous, 2-jointed. 
abdomen in both sexes 5-jointed. 
The characters which chiefly distinguish this genus 
from the Tachidwine are the structure of the inner 
branch of the first foot, the well-developed mandibular 
and maxillar palps, and the 3-joimted inner branch of 
the posterior antenna. Irom all except Hobertsonia it 
is also separated by the 2-jointed fifth foot. 
1. STENHELIA HISPIDA, nov. sp. Pl. XLII, figs. 1—14. 
Female.—Animal rather slender; head united with 
