Bulletin 39 



450 



Page 



6. Siliqnaria modesta Dall, variet}^ limonensis, n. var. , Port 



Limon, slightly enlarged... 147 



7. Sconsia cocleana, n. sp., Rio Coles, height mm 138 



8. Cypraea cinerea Gmelin, Rio Blanco 140 



9. C3'praca almirantensis, n. sp., Water Cay, height 39 mm 140 



10. Cyprsea parisimina, n. sp., Port Limon, height 39 mm 139 



11. Phalium moniliferum Gupp}-, Rio Betey, height 35 mm 135 



12. vSconsia bocasensis, n. sp., Bocas del Toro, height 35 mm 137 



13. Sconsia bocasensis, n. sp., Bocas del Toro. 



PLATE 13. (16) 



1-2-3. Strombus pugiloides Guppy, Banana River 142 



4. Fasciolaria tulipa Linnaeus, variety Port Limon 105 



5-6. Strombus gatunensis Toula, Water Cay, somewhat reduced.. 141 



7. Polinices Stanislas-Meunieri Maury, Banana River, slightly 



reduced 157 



8. Na.tica Youngi ^Nlaury, varietv cocleana, n. var., Codes 



Creek, slightly enlarged 155 



9. Natica canrena Linnteus, Gatun 155 



io-ii-[2. Architectonica granulata Lamarck, Banana River 154 



13-14-15. Natica Guppyana Toula, Banana River 156 



16-17. Polinices subclausa Sowerby, Banana River 157 



platp: 14. ([?) 



1. Turritella oreodoxa, n. sp. , Banana River, height 49 mm 152 



2. Turritella exoleta Linnaeus, variety limonensis, Port Linion, 



height 43 mm 152 



3. Turritella exoleta Linnaeus, variety limonensis, n. van, Port 



Limon, height 36 mm 



4. Turritella altilira Conrad, variety chiriquiensis, n. var., 



Banana River, height 52 mm 150 



5. Turritella mimetes Brown and Pilsbry, Gatun, height 72 mm 149 



6. Turritella altilira Conrad, Mt. Hope, typical, height 50 mm 150 



7. Turritella altilira Conrad, Gatun, typical, height 36 mm T49 



8. Turritella altilira Conrad, variety chiriquiensis, n. var.. Wat- 



er Cay, height n6 mm 150 



9. Turritella altilira Conrad, variety chiriquiensis, n. var. Ban- 



ana River, height 40 mm 150 



