Lottiidae
Lottiidae is a family of sea snails, specifically true limpets, marine gastropod mollusks in the superfamily Lottioidea and the clade Patellogastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Subfamilies

2005 taxonomy 
This family consists of the two following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):
 Lottiinae Gray, 1840
 tribe Lottiini Gray, 1840 - synonym: Tecturidae Gray, 1847
 tribe Scurriini Lindberg, 1988
 Patelloidinae Chapman & Gabriel, 1923

2007 taxonomy 
Nakano & Ozawa (2007) made changes in taxonomy of Patellogastropoda based on molecular phylogeny research: Acmaeidae Forbes, 1850 is a synonym of Lottiidae and assigned genera Acmaea and Niveotectura into Lottiidae. A cladogram showing phylogenic relations of Patellogastropoda:

Genera 

Genera within the family Lottiidae include:

Subfamily Lottiinae
 tribe Lottiini
 Discurria Lindberg, 1988
 Lottia Gray, 1833 - type species of the family Lottiidae
 Notoacmea Iredale, 1915
 Scurria Gray, 1847

Subfamily Patelloidinae Chapman & Gabriel, 1923
 Patelloida Quoy & Gaimard, 1834

 Collisella Dall, 1871: synonym of Lottia Gray, 1833

Subfamily Tecturinae Gray, 1847
 Tectura Gray, 1847
Subfamily incertae sedis

(Genera that were under Acmaeidae by Bouchet & Rocroi (2005) formerly in subfamily Rhodopetalinae):
 Actinoleuca Oliver, 1926
 Asteracmea Oliver, 1926
 Atalacmea Iredale, 1915
 † Boreoblinia O. Yu. Anistratenko, Burger & V. V. Anistratenko, 2010 
 Nipponacmea Sasaki & Okutani, 1993
 Niveotectura Habe, 1944
 Potamacmaea Peile, 1922
 Radiacmea Iredale, 1915
 Testudinalia Moskalev, 1966
 Yayoiacmea Sasaki & Okutani, 1993

References 

 
Taxa named by John Edward Gray