1066 
Wisconsin Academy of Sciences, Arts, and Letters . 
EXPLANATION OF PLATE LXXI. 
1. Wlassicsia Jcinistinensis. Feet from inside. Enlarged 200 di¬ 
ameters. This figure shows the feet in their natural position, 
as seen from the median plane of the animal. The line oft 
upper side of figure is the cut membrane of the ventral wall of 
the body. 1, 1, posterior part of labrum; 1, first foot; 2, second 
foot. The number lies on the maxillary process; the rest of 
the foot is concealed except the large recurved claw of the 
endopodite. 3, third foot; 4, fourth foot. The recurved seta 
lies vertically below the number; the edge of the endopodite 
can be seen with its setae foreshortened. 5, fifth foot; a, 
protopodite, d, d, exopodite, e, endopodite, ep, branchial sac. 
It will be noted that in the natural position the setiferous 
edges of the 2, 3, and 4 feet are turned toward each other and 
toward the median plane of the body. 
2. Wlassicsia kinistinensis. Post-abdomen. Enlarged 150 diameters. 
3. Odontalona longicaudis. Apex of post-abdomen. Enlarged 500 di¬ 
ameters. 
4. Odontalona longicaudis. Female. Enlarged 70 diameters. 
5. Odontalona tenuicaudis. Post-abdomen. Enlarged 200 diameters. 
6. Odontalona tenuicaudis. Apex of post-abdomen. Enlarged 500 dP 
ameters. 
7. Odontalona longicaudis. Post-abdomen. Enlarged 150 diameters. 
