502 AXEL A. OLSSON 



EXPLANATION' OF PLATE 29 

 Figure Page 



1. Codakia (Codakia) punctata (Linne) 216 



Length 62.5 mm., height 57.8 mm., diameter 27.4 mm. Panama. Swift 

 Coll. ANSP 54393. 



2. Lucina (Lncinisca) mittallii centrifug'a Dall 



Young specimen, length 7.0 mm. Copied after Dall, 1901. Gulf of 

 California. USNM 108881. 



3. Codakia (Codakia) distinqnenda (Tryon) 217 



C. colpoica Dall. Copied after Dall, 1901. Length 76 mm. Gulf 

 of California. USNM 104044. 



4. Lucina (Lucinoma) cliiripanica Olsson 209 



Copied after Olsson, 1942. Length 54 mm. Pliocene. Charco Azul, 

 Panama. PRI 4099. 



5. Codakia (Ctena) mexicana Dall 218 



Copied after Dall, 1901. Length 23 mm. Gulf of California. USNM 

 101783. 



6. Lucina (Lucinoma) heroica Dall 209 



Copied after Dall, 1901. Length 71 mm. Western Mexico. USNM 

 108818. 



7-7a. Lucina (Here) excavata Carpenter 208 



Copied after Dall, 1901. Young shell, length 14.5 mm. Catalina 

 Island, California. USNM 108828. 



8. Codakia (Ctena) galapagana Dall 218 



Copied after Dall, 1901. Length 23 mm. Galapagos Islands, USNM 

 102454. 



9-9a. Lucina (Lucinisca) liana (Pilsbry) 212 



Fig. 9, length 20.3 mm. Pliocene, Punta Blanca, Ecuador, PRI 

 25643; Fig. 9a, young shell, length 8.2 mm. Bucaro, Panama. 

 PRI 25644. 



10. Lucina (Lucinisca) fenestrata Hinds 213 



Length 55 mm. Panama. Mr. Harry B. Johnson Coll. PRI 25645. 



