554 axel a. olsson 



Explanation of Plate 81 



Figure Page 



1-lg. Pandora (Clidiophora) arcuata Sowerby 456 



Fig. 1, enlargement of hinge, the small ligament scar or resilifer 

 is indicated. Charapota, Ecuador. PRI 25939A; Figs, la, Ig, length 

 19.7 mm.; Figs, lb, Ic, length 18.2 mm.; Fig. Id, length 20 mm. 

 Zorritos, Peru. PRI 25939B; Figs, le. If, after Sowerby in 

 Reeve, vol. 19. (as P. claviculata Carpenter). 



2-2b. Pandora (Foveadens) panamensis Dall 457 



Fig. 2, enlargement of hinge, the small ligament scar is indicated; 

 Figs. 2a, 2b, length 22.6 mm. Old Panama, Panama. PRI 25940. 



3. Pandora (Frenamya) radiata Sowerby 456 



Figure after Sowerby in Reeve, vol. 19. 



4. Pandora (Pandora) uncifera P'ilsbry and Lowe 454 



Length 9 mm., Manta, Ecuador. PRI 25941. 



5. Pandora (Pandora) brevifrons Sowerby 454 



Figure after Sowerby in Reeve, vol. 19. 



6. Pandora (Pandorella) rhypis Pilsbry and Lowe 455 



Figure after Pilsbry and Lowe. 



7-7a. Pandora (Pandorella) cornuta C. B. Adams 455 



Length 13.5 mm. The posterior end of the shell has been broken 

 producing two hornlike points, hence the name. Panama. Holotype. 

 MCZ. 



