NO. 12 STRONG AND HERTLEIN : MARINE MOLLUSKS 223 



PLATE 21 



Fig. 1. Barleeia zeteki Strong & Hertlein, new species. Holotvpe, No. 707 

 (Calif. Acad. Sci. Paleo. Type Coll.), from Loc. 27,229 (C.A.S.), 

 dredged in from 3 to 9 fms. in Bahia Honda, Veragua, Panama. 

 Length, 2.2 mm; diameter, 1.3 mm. (Page 228.) 



Fig. 2. Amphithalamus trosti Strong & Hertlein, new species. Holotype, No. 

 706 (Calif. Acad. Sci. Paleo. Type Coll.), from Loc. 27,229 (C.A.S.), 

 dredged in from 3 to 9 fms. in Bahia Honda, Veragua, Panama. 

 Length, 1.1 mm; diameter, 0.7 mm. (Page 228.) 



Fig. 3. Liotia halhoai Strong & Hertlein, new species. Holotype, No. 728 

 (Calif. Acad. Sci. Paleo. Type Coll.), from Loc. 27,228 (C.A.S.), 

 dredged in from 3 to 9 fms. off Taboga Island, Panama. Height, 2.5 

 mm; diameter, 3.6 mm. View of base. (Page 236.) 



Fig. 4. Liotia heirni Strong & Hertlein, new species. Holotype, No. 730 (Calif. 

 Acad. Sci. Paleo. Type Coll.), from Loc. 27,228 (C.A.S.), dredged in 

 3 to 9 fms. off Taboga Island, Panama. Height, 1.4 mm; diameter, 

 2.0 mm. (Page 238.) 



Fig. 5. Liotia halboai Strong & Hertlein, new species. View of the top of the 

 specimen shown in figure 3. (Page 236.) 



Fig. 6. Liotia halhoai Strong & Hertlein, new species. Apertural view of 

 the specimen shown in figures 3 and 5. (Page 236.) 



Fig. 7. Liotia heimi Strong & Hertlein, new species. View of the top of the 

 specimen shown in figure 4. (Page 238.) 



Fig. 8. Cyclostrema mccullochae Strong & Hertlein, new species. Holotype, No. 

 716 (Calif. Acad. Sci. Paleo. Type Coll.), from Loc. 27,229 (C.A.S.), 

 dredged in from 3 to 9 fms. in Bahia Honda, Veragua, Panama. 

 Height, 0.5 mm; greatest diameter, 1.1 mm. Basal view. (Page 239.) 



Fig. 9. Liotia erici Strong & Hertlein, new species. Holotype, No. 729 (Calif. 

 Acad. Sci. Paleo. Type Coll.), from Loc. 27,229 (C.A.S.), dredged in 

 from 3 to 9 fms. in Bahia Honda, Veragua, Panama. Height, 1.3 

 mm; diameter, 2.0 mm. (Page 237.) 



Fig. 10. Cyclostrema mccullochae Strong & Hertlein, new species. View of the 

 top of the specimen shown in figure 8. (Page 239.) 



Fig. 11. Cyclostrema mccullochae Strong & Hertlein, new species. Apertural 

 view of the specimen shown in figs. 8 and 10. (Page 239.) 



Fig. 12. Cyclostrema bartschi Strong & Hertlein, new species. Holotype, No. 

 715 (Calif. Acad. Sci. Paleo. Type Coll.), from Loc. 27,229 (C.A.S.), 

 dredged in from 3 to 9 fms. in Bahia Honda, Veragua, Panama. 

 Height, 0.5 mm; greatest diameter, 1.0 mm. View of the top of the 

 specimen. (Page 240.) 



Fig. 13. Cyclostrema hartschi Strong & Hertlein, new species. Apertural view 

 of the specimen shown in figures 12 and 16. 



Fig. 14. Circulus hakeri Strong & Hertlein, new species. Holotype, No. 713 

 (Calif. Acad. Sci. Paleo. Type Coll.), from Loc. 27,229 (C.A.S.), 

 dredged in from 3 to 9 fms. in Bahia Honda, Veragua, Panama. 

 Height, 0.5 mm; greatest diameter, 1.4 mm. (Page 240.) 



Fig. 15. Circulus hakeri Strong & Hertlein, new species. Apertural view of the 

 specimen shown in figure 14. 



Fig. 16. Cyclostrema bartschi Strong & Hertlein, new species. Basal view of 

 the specimen shown in figures 12 and 13. (Page 240.) 



