Cushman. — Vineyard Sound Ostracoda. 
EXPLANATION OF PLATES. 
PLATE 27. 
Sarsiella americana sp. nov. 
Fig. 1. Shell of female seen from the side. X 45. 
Fig. 2. Shell of female seen from the front. X 45. 
Fig. 3. Antennula of female. X 125. 
Fig. 4. Natatory branch of antenna of female. X 125. 
Fig. 5. Mandibular foot of female. X 125. 
Fig. 6. Abdominal lamina of female. X 125. 
