Sonorella aguacalientensis H.A. Pilsbry & J.H. Ferriss,1915
Helminthoglypta allyniana S.S. Berry, 1920
Sonorella allynsmithi (W.O. Gregg & W.B. Miller,1969)
Sonorella ambigua H.A. Pilsbry & J.H. Ferriss,1915
Sonorella anchana S.S. Berry, 1948
Herpeteros angelus W.O. Gregg, 1949
Sonorella animasensis H.A. Pilsbry, 1939
Sonorella apache H.A. Pilsbry & J.H. Ferriss,1915
Chamaearionta aquaealbae (S.S. Berry, 1922)
Micrarionta areolata (G.B. III Sowerbyin L. Pfeiffer, 1845)
Eremariontoides argus (H.M. Edson, 1912)
Sonorella arida H.A. Pilsbry & J.H. Ferriss,1915
Helminthoglypta arrosa (W.G. Binney, 1858)
Helminthoglypta arrosa marinensis H.A. Pilsbry, 1927
Helminthoglypta arrosa pomoensis (W.G. Binney, 1858)
Sonorella ashmuni P. Bartsch, 1904
Sonorelix avawatzica (S.S. Berry, 1930)
Helminthoglypta avus P. Bartsch, 1916
Helminthoglypta ayersiana (W. Newcomb, 1861)
Sonorella baboquivariensis H.A. Pilsbry & J.H. Ferriss,1915
Sonorella baboquivariensis depressa H.A. Pilsbry & J.H. Ferriss,1906
Sonorella bagnarai W.B. Miller, 1967
Sonorelix baileyi (P. Bartsch, 1904)
Sonorelix baileyi eremita (H.A. Pilsbry, 1939)
Sonorella bartschi H.A. Pilsbry & J.H. Ferriss,1915
Micrarionta beatula T.D.A. Cockerell, 1929
Helminthoglypta benitoensis H.N. Lowe, 1930
Sonorella bequaerti W.B. Miller, 1967
Helminthoglypta berryi G.D. Hanna, 1929
Helminthoglypta betheli (J. Henderson, 1914)
Sonorella bicipitis H.A. Pilsbry & J.H. Ferriss,1910
Sonorella binneyi H.A. Pilsbry & J.H. Ferriss,1910
Sonorella binneyi franciscana H.A. Pilsbry & J.H. Ferriss,1919
Sonorelix borregoensis (S.S. Berry, 1929)
Sonorelix borrogoensis (S.S. Berry, 1929)