592 



MUSEO NACIONAL DE BUENOS AIRES. 



Dosinia brasilensis, 2G. 

 Dosinia Burckhardti, 2(i, 31. 

 Dosinia Burmeisteri, 104, 801. 

 Dosinia complanata, 848. 

 Dosinia entreriana, 358, 359, 388 

 Dosinia laeviuscula, 104, 108, 2(i7, 301, 



333, 348. 

 Dosinia magellanica, 333, 348. 

 Dosinia magna, 8G 



Dosinia meridionalls, 104, 109, 300, 392, 



393, 414. 

 Dosinia patagónica, 359, 383. 

 Dosinia iJonderosa, 517, 525. 

 Dosinia semilaevis, 348. 

 Dosinidia, 299. 

 Drillia, 218, 219, .504. 

 Drillia patagónica, 218, 422, 448. 

 Drillia santacruzensis, 101, 109, 221. 



E. 



Enaeta, 205. 



Ensis, 317, 505. 



Ensis macha, 517, 525. 



Entacanthus, 184. 



Eriphyla, 450. 



Erodona, 459. 



Erycina solenoides, 4.58. 



Erycinella, 502, 505. 



Erycinella exulata, 281. 



Erycinella pálida, 281. 



Eucallista, 299, 300. 



Eulima, 142, 504, ,514. 



Etilima Carforti, 142. 



Eulima subulata, 142. 



Eulima subventricosa, 97, 142. 



Eumytilus, 269. 



Euthria, 504, 510, 511, 549. 



Euthria antárctica, 520. 



Euthria fuscata, 419, 444, 487, 520. 



Euthria plúmbea, 420. 



Eutritonium, 174. 



Exogyra, 31, 38, 88, 43, 53, 54, 75, 245, 



24(5, 488. 

 Exogyra aff. lateralis, 44. 

 Exogyra auricularis, 38. 

 Exogyra callophylla, 10, 30, 81, 43, 44, 



55, 56. 

 Exogyra mendozana, 43. 

 Exogyra ostracina, 38. 

 Exogyra ostracina mendozana, 87. 



F. 



Fagus, 335. 



Fasciolaria antárctica, 534. 

 Fasciolaria purpurata, 534. 

 Felicia, 505, 508. 

 Ficula Carolina, 173. 

 Fissurella, 123, 503, 510, 512, 525. 

 Fissurella eury treta, 124. 

 Fissurella Henseli, 436. 

 Fissurellidea megatrema, 399. 

 Fissuridea patagónica, 422, 425, 427. 

 Fissuridea fumata, 534. 

 Fossarus, 79, 159, 493, 501, 536. 

 Fossarus ambiguus, .534. 

 Fossarus pilula, 98, 159. 

 Fossarus pusillus, 534. 

 Fragum , 290. 



Fusitriton, 509, 525. 



Fusus, 92, 181, 191, 195, 219, 500, 501,503, 



536. 

 Fusus archimedis, 100, 194. 

 Fusus cancellatus, 193. 

 Fusus distans, 535. 

 Fusus Orbignyi, 178. 

 Fusus Ortmanni, 193. 

 Fusus oxytropis, 195. 

 Fusus patagonicus, 181. 

 Fusus Pilsbryi, 100, 108, 195. 

 Fusus quemadensis, 100, l95. 

 Fusus subspiralis, 348, 845. 

 Fusus torosus, 100, 195. 

 Fusus verrucosus, 535. 



G. 



Galeocerdo Davisi, 88. 

 Galerus araucanus, 149. 

 Galeras mammilaris, 401. 



Gastridium, 190, 344. 



Gibbula, 79, 127 - 129, 484, 500, 501. 



Gibbula americana, 127. 



