no. 1704. A COLLECTION OF SHELLS FROM PERU—DALL. 
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Anomia hamillus Gray =A. peruviana Orbigny. 
Anomia lampe Gray=<A. peruviana Orbigny. 
Anomia larbas Gray=A. peruviana Orbigny. 
Aplysia Linnezeus, 1767= Tethys Linnzeug, 1758. 
Arca brasiliensis Reeve, not Lamarck=4A. carduformis Sowerby. 
Arca hemicardium Koch=A. reversa Sowerby. 
Arca inaequivalvis Reeve, not Bruguiére=A. cardiiformis Sowerby. 
Arca sowerbyi Orbigny =A. biangulata Sowerby, not A. biangula Lamarck. 
Artemis macilenta Reeve= Cyclinella kroyeri Philippi. 
Artemis tenuis Sowerby, 1852, not Recluz= Cyclinella subquadrata Hanley. 
Arthemis saccata Gould= Cyclinella subquadrata Hanley. 
Astralium, see Astrxa. 
Auricula nigra Philippi= Marinula marinella Kiister. 
Avicula Lamarck, see Pteria Scopoli. 
Barnea truncata Tryon, not Say=B. pacifica Stearns. 
Buccinum bolivianum Souleyet, see Cantharus bolivianus. 
_ Buccinum cochlidium Kiener, cf. B. paytensis Kiener. 
Buccinum cribrarium Lamarck, see Nitidella ocellata, Gmelin. 
Buccinum fusiforme Souleyet=Solenosteira fusiformis Blainville. 
Buccinum insignis Reeve, 1846=Cantharus elegans Gray. 
Buccinum pagodus Reeve=Solenosteira fusiformis Blainville. 
Buccinum parvulum Dunker = Nitidella ocellata Carpenter. 
Buccinum pristis Deshayes, 1844=Northia northiex Gray. 
Buccinum serratum Dufresne, 1834, not of Broechi, 1814, see Northia. 
Bulla Linnzeus, 1758, p. 725, not p. 425= Bullaria Rafinesque. 
Bulla ampulla Troschel, not Linnzeus=B. gouldiana? 
Buila nebulosa Gould, 1852, not Schréter, 1804=B. gouldiana? 
Bulla panamensis Philippi, 1848=B. aspersa? 
Bulla punctata A. Adams, 1850=B. punctulata Adams. 
Bulla striata Orbigny, 1837=B. punctulata? 
Cadulus panamensis Pilsbry and Sharp, cf. C. perpusillus Sowerby- 
Callista longispina Morch= Pitaria multispinosa. 
Calyptrzxa, see also Crucibulum and Crepidula. 
Calyptrea amygdala Valenciennes=Crepidula onyx Sowerby. 
Calyptrza araucana Lesson= Trochita trochiformis Gmelin. 
Calyptrxea cornea Broderip=Cheilea equestris Linneeus. 
Calyptrxa dilatata Sowerby, 1824= Trochita trochiformis Gmelin. 
Calyptrea echinus Broderip=Crepidula aculeata Gmelin. 
Calyptrea foliacea Broderip=Crepidula dilatata Sowerby. 
Calyptrea hystrix Broderip=Crepidula aculeata Gmelin. 
Calyptrxa rudis Broderip=Cheilea equestris Linneeus. 
Calyptrza rugosa Deshayes, not Lesson=Crucibulum quiriquine Lesson. 
Calyptrxa sordida Broderip=Trochita trochiformis Gmelin. 
Calyptrxa strigata Broderip=Crepidula dilatata Sowerby. 
Calyptrxa tubifera Lesson=Crucibulum spinosum Sowerby. 
Calyptrxa umbrella Deshayes=Cheilea equestris Linnzeus. 
Calyptrxa umbretia Deshayes (part) = Crucibulum imbricatum Sowerby- 
Calyptrexa unguis Broderip= Trochita, testa juvenis. 
Calyptrea varia Broderip= Cheilea equestris Linnzeus. 
Cancellaria ovata Sowerby, 1832=C. obesa Sowerby. 
Cancellaria unifasciata Orbigny, cf. C. uniplicata Sowerby. 
Cardita arcella Valenciennes=C. radiata Sowerby. 
Cardita flammea Michaud = Venericardia crassicostata Sowerby- 
Cardita tricolor Sowerby, 1832=C. laticostata Sowerby var. 
