EXPLANATION OF PLATES 
PLATE 14 
Fig. 1. Acila castrensis (Hinds). X 2. Longitude 9.4 mm. 
Station D5788.* Exterior of left valve. 
Fig. 2. Acila castrensis (Hinds). X 2. Longitude 9.4 mm. 
Station D5788.* Interior of right valve. 
Fig. 3a. Arca transversa Say. X 2. Longitude 18.2 mm. Sta- 
tion D5711. Exterior of right valve. 
Fig. 3b. Arca transversa Say. X 2. Longitude 18.2 mm. Sta- 
tion D 5711. Interior of right valve. 
Fig. 4. Nucula tenwis Carpenter. X 4. Longitude 5.5 mm. 
Station D5785(?). Exterior of left valve. 
Fig. 5. Leda hamata Carpenter. X 2. Longitude 10.5 mm. 
Station D5785. Exterior of left valve. 
Fig. 6. Yoldia ensifera Dall. X 1. Longitude 39.5 mm. Sta- 
tion D5789.* Exterior of left valve. 
Fig. 7a. Leda taphria Dall. X 2. Longitude 16 mm. Station 
D 5785. Exterior of right valve. 
Fig. 7b. Leda taphria Dall. X2. Longitude 16 mm. Station 
D 5785. Interior of left valve. 
Fig. 8. Leda taphria Dall. X 2. Longitude 14 mm. Station 
D 5785. Dorsal view. 
Fig. 9. Yoldia corperi Gabb. X 1. Longitude 54 mm. Station 
D 57. Exterior of right valve. 
Fig. 10a. Ostrea lurida Carpenter. X1. Longitude 51 mm. In- 
terior of left valve. 
Fig. 106. Ostrea lurida Carpenter. X 1. Longitude 51 mm. In- 
terior of right valve. 
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