Akera flexilis T. Brown, 1844 accepted as Akera bullata O. F. Müller, 1776 (original description)
Anodonta contorta T. Brown, 1844 accepted as Anodonta cygnea (Linnaeus, 1758) (original description)
Azor T. Brown, 1844 accepted as Azorinus Récluz, 1869 (original description)
Bontaea T. Brown, 1844 accepted as Cochlodesma Couthouy, 1839 (original description)
Coramya T. Brown, 1844 accepted as Hiatella Bosc, 1801 (original description)
Corbula rosea T. Brown, 1844 accepted as Varicorbula gibba (Olivi, 1792) (original description)
Cyclas citrina T. Brown, 1844 accepted as Sphaerium corneum (Linnaeus, 1758) (original description)
Gobraeus T. Brown, 1844 accepted as Gari (Gobraeus) T. Brown, 1844 represented as Gari Schumacher, 1817 (original description)
Limecola T. Brown, 1844 accepted as Macoma Leach, 1819 (original description)
Limecola solidula T. Brown, 1844 accepted as Macoma balthica (Linnaeus, 1758) (original description)
Modiola balli T. Brown, 1844 accepted as Lioberus agglutinans (Cantraine, 1835) (original description)
Modiola ballii T. Brown, 1844 accepted as Lioberus agglutinans (Cantraine, 1835) (original description)
Myatella montagui T. Brown, 1844 accepted as Lyonsia norwegica (Gmelin, 1791) (original description)
Nodosaria decemlocularia Brown, 1844 (original description)
Nodosaria octolocularia Brown, 1844 (original description)
Nodosaria tuberculata Brown, 1844 (original description)
Orthocera septemcostata Brown, 1844 (original description)
Patella vulgata var. communis T. Brown, 1844 accepted as Patella vulgata Linnaeus, 1758 (original description)
Pharus T. Brown, 1844 accepted as Pharus J. E. Gray, 1840 (original description)
Pullastra irus (Linnaeus, 1758) accepted as Irus irus (Linnaeus, 1758) (basis of record)
Rissoa glabra (T. Brown, 1827) (new combination reference)
Rissoa graphica T. Brown, 1844 accepted as Cingula trifasciata (J. Adams, 1800) (original description)
Rissoa interrupta (J. Adams, 1800) accepted as Rissoa parva (da Costa, 1778) (basis of record)
Rissoa semicostata (Montagu, 1803) accepted as Onoba semicostata (Montagu, 1803) (basis of record)
Serpula contortus Brown, 1827 (additional source)
Serpula perversa Brown, 1827 accepted as Pomatoceros triqueter (Linnaeus, 1758) accepted as Spirobranchus triqueter (Linnaeus, 1758) (additional source)
Serpula reflexa Adams, 1800 accepted as Spirorbis (Spirillum) lucidus (Montagu, 1803) (source of synonymy)
Serpula reversa Montagu, 1803 (additional source)
Serpula spiralis Brown, 1827 accepted as Pomatoceros triqueter (Linnaeus, 1758) accepted as Spirobranchus triqueter (Linnaeus, 1758) (additional source)
Spirorbis lucida (Montagu, 1803) accepted as Circeis spirillum (Linnaeus, 1758) (new combination reference)
Spirorbis reversus (Montagu, 1803) accepted as Serpula reversa Montagu, 1803 (additional source)
Thracia brevirostra T. Brown, 1844 accepted as Cuspidaria cuspidata (Olivi, 1792) (original description)
Thracia ovata T. Brown, 1844 accepted as Thracia villosiuscula (MacGillivray, 1827) (original description)
Utriculus T. Brown, 1844 accepted as Retusa T. Brown, 1827 (original description)

 Nomenclature

 for Azor T. Brown, 1844

Name attributed by Brown to Leach. Leach's MS name was first made available by J. de C. Sowerby with a taxonomic ... [details]

 Nomenclature

 for Pharus T. Brown, 1844

attributed to Leach MSS by Brown [details]