390 CALIFOENIA ACADEMY OF SCIENCES. 



EXPLANATION OF PLATE XIV. 



Fig. I. Venus (Chione) succincia Valenciennes. Upper San Pedro series, San Pedro. 



Exterior of right valve. Longitude 54 mm.; natural size. 149 



Fig. 2. Venus ( Chione) Jludi/raga Sowerby. Upper San Pedro series, San Pedro. Ex- 

 terior of right valve. Longitude 25 mm.; >ci.7. 147 



Fig. 3. Venus {^Chione) ?ieglecta Sowerby. Upper San Pedro series, San Pedro. Lon- 

 gitude 30 mm.; X2.2. 148 



Fig. 4. Tapes s/aminea CoT^iR AD. Upper San Pedro series, San Pedro. Longitude 50 mm.; 



natural size. 150 



Fig- 5- Tapes lacineala Carpenter. Upper San Pedro series, Los Cerritos. Longitude 



10 mm.; x i.i. 150 



Fig. 6. Tapes lenerrima Carpenter. Upper San Pedro series, San Pedro. Longitude 



84 mm.; natural size. 151 



