Opinions from H. A. Pilsbry and A.A. Olsson 1941
- 'Acar was reranked as Barbatia (Acar) and belongs to Barbatia'
- 'Acteocina puruha belongs to Acteocina'
- 'Aesopus (Glyptaesopus) perornatus belongs to Aesopus (Glyptaesopus)'
- 'Aesopus polylophus belongs to Aesopus'
- 'Angulus was reranked as Tellina (Angulus) and belongs to Tellina'
- 'Anomalocardia callistoides belongs to Anomalocardia'
- 'Arca (Cunearca) esmeralda belongs to Arca (Cunearca)'
- 'Arca (Scapharca) ecuadoriana belongs to Arca (Scapharca)'
- 'Arca (Scapharca) hopkinsi belongs to Arca (Scapharca)'
- 'Arca (Scapharca) wheeleri belongs to Arca (Scapharca)'
- 'Arcularia was reranked as Nassa (Arcularia) and belongs to Nassa'
- 'Argina was reranked as Arca (Argina) and belongs to Arca'
- 'Bellucina was reranked as Lucina (Bellucina) and belongs to Lucina'
- 'Cadulus (Gadilopsis) belongs to Cadulus' according to Woodring 1925
- 'Cadulus (Gadilopsis) belongs to Cadulus'
- 'Cadulus (Gadilopsis) leptodoma belongs to Cadulus (Gadilopsis)'
- 'Cadulus (Polyschides) quitus belongs to Cadulus (Polyschides)'
- 'Caecum campe belongs to Caecum'
- 'Calliostoma nonurum belongs to Calliostoma'
- 'Cancellaria (Cancellaria) belongs to Cancellaria' according to Lamarck 1799
- 'Cancellaria (Cancellaria) belongs to Cancellaria'
- 'Cancellaria (Cancellaria) cominella belongs to Cancellaria (Cancellaria)'
- 'Cancellaria (Cancellaria) dolioides belongs to Cancellaria (Cancellaria)'
- 'Cancellaria (Cancellaria) jijipana belongs to Cancellaria (Cancellaria)'
- 'Cancellaria (Cancellaria) yolandia belongs to Cancellaria (Cancellaria)'
- 'Cancellaria (Euclia) harpiformis belongs to Cancellaria (Euclia)'
- 'Cancellaria (Narona) pajana belongs to Cancellaria (Narona)'
- 'Cancellaria (Tribia) bahia belongs to Cancellaria (Tribia)'
- 'Cancellaria cassidiformis is recombined as Cancellaria (Euclia) cassidiformis'
- 'Cancellaria cumingiana is recombined as Cancellaria (Olivia) cumingiana'
- 'Cancellaria pacifica is recombined as Cancellaria (Euclia) pacifica'
- 'Cardium (Trigoniocardia) ballenium belongs to Cardium (Trigoniocardia)'
- 'Cardium (Trigoniocardia) cabopasadum belongs to Cardium (Trigoniocardia)'
- 'Cassis centiquadrata is recombined as Semicassis centiquadrata'
- 'Chione (Chionopsis) jamaniana belongs to Chione (Chionopsis)'
- 'Chione (Chionopsis) manabia belongs to Chione (Chionopsis)'
- 'Chione (Chionopsis) traftoni belongs to Chione (Chionopsis)'
- 'Chione (Chionopsis) venadoensis belongs to Chione (Chionopsis)'
- 'Chione (Lirophora) gorgona belongs to Chione (Lirophora)'
- 'Chionopsis was reranked as Chione (Chionopsis) and belongs to Chione'
- 'Circulus occidentalis belongs to Circulus'
- 'Clathrodrillia noventa belongs to Clathrodrillia'
- 'Clathrodrillia woodringi belongs to Clathrodrillia'
- 'Corbula ecuabula belongs to Corbula'
- 'Crassinella clementia belongs to Crassinella'
- 'Crassinella haylocki belongs to Crassinella'
- 'Crassispira guayana belongs to Crassispira'
- 'Crenella ecuadoriana belongs to Crenella'
- 'Crucibulum (Crucibulum) belongs to Crucibulum' according to Schumacher 1817
- 'Crucibulum (Crucibulum) belongs to Crucibulum'
- 'Crucibulum alloglyptum belongs to Crucibulum'
- 'Cunearca was reranked as Arca (Cunearca) and belongs to Arca'
- 'Cyclinella galera belongs to Cyclinella'
- 'Cymatoica was reranked as Macoma (Cymatoica) and belongs to Macoma'
- 'Cymatophos galerus belongs to Cymatophos'
- 'Cypraea cayapa belongs to Cypraea'
- 'Dispotaea was reranked as Crucibulum (Dispotaea) and belongs to Crucibulum'
- 'Egesta was reranked as Clementia (Egesta) and belongs to Clementia'
- 'Epitonium (Ferminoscala) eleutherium belongs to Epitonium (Ferminoscala)'
- 'Epitonium (Ferminoscala) manabianum belongs to Epitonium (Ferminoscala)'
- 'Epitonium (Spiniscala) loripanum belongs to Epitonium (Spiniscala)'
- 'Euclia was reranked as Cancellaria (Euclia) and belongs to Cancellaria'
- 'Eurytellina was reranked as Tellina (Eurytellina) and belongs to Tellina'
- 'Ferminoscala was reranked as Epitonium (Ferminoscala) and belongs to Epitonium'
- 'Glycymeris canoa belongs to Glycymeris'
- 'Glyptaesopus was reranked as Aesopus (Glyptaesopus) and belongs to Aesopus'
- 'Hanetia boggsi belongs to Hanetia'
- 'Hanetia cymioides belongs to Hanetia'
- 'Hanetia ecuadorensis belongs to Hanetia'
- 'Hindsia wheeleri belongs to Hindsia'
- 'Janira was reranked as Pecten (Janira) and belongs to Pecten'
- 'Laevicardium pedernalense belongs to Laevicardium'
- 'Larkinia was reranked as Arca (Larkinia) and belongs to Arca'
- 'Lirophora was reranked as Chione (Lirophora) and belongs to Chione'
- 'Longchaeus was reranked as Pyramidella (Longchaeus) and belongs to Pyramidella'
- 'Loripinus (Pegophysema) belongs to Loripinus'
- 'Lucina (Lucinisca) fausta belongs to Lucina (Lucinisca)'
- 'Lucina (Parvilucina) callosana belongs to Lucina (Parvilucina)'
- 'Lucinisca was reranked as Lucina (Lucinisca) and belongs to Lucina'
- 'Macaliopsis was reranked as Tellina (Macaliopsis) and belongs to Tellina'
- 'Macoma (Macoploma) belongs to Macoma'
- 'Macoma (Macoploma) ecuadoriana belongs to Macoma (Macoploma)'
- 'Mactra (Micromactra) atacama belongs to Mactra (Micromactra)'
- 'Mactrella was reranked as Mactra (Mactrella) and belongs to Mactra'
- 'Mangelia ecuadoriana belongs to Mangelia'
- 'Mangelia heptapleura belongs to Mangelia'
- 'Mangelia hesperia belongs to Mangelia'
- 'Mesopleura was reranked as Tagelus (Mesopleura) and belongs to Tagelus'
- 'Micromactra was reranked as Mactra (Micromactra) and belongs to Mactra'
- 'Mormula was reranked as Turbonilla (Mormula) and belongs to Turbonilla'
- 'Mulinia camina belongs to Mulinia'
- 'Nannodiella meridionalis belongs to Nannodiella'
- 'Narona was reranked as Cancellaria (Narona) and belongs to Cancellaria'
- 'Nassa (Arcularia) puntablacoensis belongs to Nassa (Arcularia)'
- 'Nassa (Perunassa) ecuadoriana belongs to Nassa (Perunassa)'
- 'Nassa cara belongs to Nassa'
- 'Nassa pacis belongs to Nassa'
- 'Nassa palta belongs to Nassa'
- 'Nassa tinosa belongs to Nassa'
- 'Olivia was reranked as Cancellaria (Olivia) and belongs to Cancellaria'
- 'Onoba fortis belongs to Onoba'
- 'Perunassa was reranked as Nassa (Perunassa) and belongs to Nassa'
- 'Phacoides (Parvilucina) was reranked as Lucina (Parvilucina) and belongs to Lucina'
- 'Pitar salanga belongs to Pitar'
- 'Polyschides was reranked as Cadulus (Polyschides) and belongs to Cadulus'
- 'Pseudorotella lens belongs to Pseudorotella'
- 'Quadrans was reranked as Tellina (Quadrans) and belongs to Tellina'
- 'Ranella nana is recombined as Bursa nana'
- 'Scapharca was reranked as Arca (Scapharca) and belongs to Arca'
- 'Semele jaramija belongs to Semele'
- 'Solecurtus broggii belongs to Solecurtus'
- 'Spiniscala was reranked as Epitonium (Spiniscala) and belongs to Epitonium'
- 'Strioterebrum was reranked as Terebra (Strioterebrum) and belongs to Terebra'
- 'Strombina ecuadoriana belongs to Strombina'
- 'Strombinophos loripanus belongs to Strombinophos'
- 'Systellomphalus peronatus belongs to Systellomphalus'
- 'Tagelus (Mesopleura) peruvianus belongs to Tagelus (Mesopleura)'
- 'Teinostoma ecuadoriana belongs to Teinostoma'
- 'Tellina (Eurytellina) ecuadoriana belongs to Tellina (Eurytellina)'
- 'Tellina (Eurytellina) laplata belongs to Tellina (Eurytellina)'
- 'Tellina (Macaliopsis) aequizonata belongs to Tellina (Macaliopsis)'
- 'Terebra (Strioterebrum) blanca belongs to Terebra (Strioterebrum)'
- 'Terebra (Strioterebrum) cuenca belongs to Terebra (Strioterebrum)'
- 'Terebra (Strioterebrum) loja belongs to Terebra (Strioterebrum)'
- 'Terebra (Strioterebrum) manta belongs to Terebra (Strioterebrum)'
- 'Terebra (Strioterebrum) tumaca belongs to Terebra (Strioterebrum)'
- 'Terebra (Terebra) belongs to Terebra' according to Bruguière 1798
- 'Terebra (Terebra) belongs to Terebra'
- 'Terebra (Terebra) elena belongs to Terebra (Terebra)'
- 'Tesseracme was reranked as Dentalium (Tesseracme) and belongs to Dentalium'
- 'Trachycardium was reranked as Cardium (Trachycardium) and belongs to Cardium'
- 'Trachycardium (Mexicardia) is reassigned into Cardium'
- 'Tribia was reranked as Cancellaria (Tribia) and belongs to Cancellaria'
- 'Trigoniocardia was reranked as Cardium (Trigoniocardia) and belongs to Cardium'
- 'Tritiaria ecuadoriana belongs to Tritiaria'
- 'Turbonilla (Mormula) loripana belongs to Turbonilla (Mormula)'
- 'Turritella pasada belongs to Turritella'