Belongs within: Hypsogastropoda.
Contains: Calyptraea, Crepidula.
The Calyptraeidae, slipper limpets, are a family of limpet-like marine gastropods whose vernacular name refers to a septum partially closing the opening of the shell. Muscle scars (if present) are large and not horseshoe-shaped, and located just before the septum. The animal possesses well-developed eyes at the base of stubby tentacles. They are most famous for the stacking behaviour of some species: as protandrous hermaphrodites (starting life as males and later becoming females), they form mating stacks when a male climbs on top of a female. Other males will then climb on top of him, waiting for the time when the male below them becomes a female. Females then brood their larvae under their shells for at least part of their development (Herbert & Portell 2004).
Members of the genus Sigapatella retain a coiled spire with rounded whorls. The genus Crucibulum is distinguished by an internal cup-shaped lamina that is attached along a line on one side to the inner wall of the shell (Oldroyd 1927).
<==Calyptraeidae (see below for synonymy)
|--Sigapatella Lesson 1830S11, P61
| |--*S. novaezelandiae Lesson 1830W93, P61 [incl. Calyptraea (Sigapatella) maculatumD56]
| |--S. maccoyi (Suter 1917) [=Calyptraea maccoyi]F26
| |--S. patulosa Powell & Bartrum 1929PB29
| |--S. subvaricosa Powell & Bartrum 1929PB29
| |--S. superstes Fleming 1958P61
| |--S. terraenovae Peile 1924P61
| `--S. vertex (Marwick 1926) [=Calyptraea vertex]F26
`--+--‘Trochita’ Schumacher 1817 non Hofer 1760S11, BR05
| |--*T. spiralis Schumacher 1817BR17
| |--T. candeanaG79
| |--T. costellataC64
| |--T. diegoana Conrad 1855C64
| |--T. dilatataH86
| |--T. neozelanicaH86
| |--T. radians Lamarck 1822R72
| |--T. subtabulataQ72
| |--T. trochiformis (Born 1778)S11 [=Calyptraea trochiformisCF02; incl. T. spirataC64]
| |--T. turbinata Tenison-Woods 1878F71
| `--T. ventricosaC64
`--+--CalyptraeaS11
`--+--+--CrepidulaS11
| `--Bostrycapulus Olsson & Harbison 1953S11, W93
| |--*B. aculeatus (Gmelin 1791)W93 (see below for synonymy)
| | |--B. a. aculeatusW62
| | `--B. a. venezuelanus (Weisbord 1962) [=Crepidula (Bostrycapulus) aculeata venezuelana]W62
| |--B. bonnieae (Petuch & Drolshagen 2009) [=Crepidula (Bostrycapulus) bonnieae]P12
| |--B. odites Collin 2005S11
| `--B. pritzkeri Collin 2005WBS-S15
`--Crucibulum Schumacher 1817S11, O27
|--*C. rudisO27
|--C. auricula (Gmelin 1791)MP65 (see below for synonymy)
|--C. auritum [incl. C. striata]C64
|--C. chipolanumW62
|--C. constrictumW62
| |--C. c. constrictumW62
| `--C. c. conjugeW62
|--C. corrugatum [incl. C. jewetti]C64
|--C. costatumW62
|--C. inermeW62
|--C. lignarium (Broderip 1834)PP78 [incl. C. rugosumC64]
|--C. multilineatum (Conrad 1841)W62
|--C. pectinatumC64
|--C. personatum Keen 1958V89
|--C. piliferum Guppy 1867W62
|--C. quiriquinae (Lesson 1830)S11 [incl. C. byronensisC64, C. ferrugineumC64]
|--C. radiatumC64
|--C. scetellatum (Wood 1828)V89 [incl. C. imbricatumW62]
|--C. serratumC64
|--C. sordidum [incl. Calyptraea unguis, Cr. unguis]C64
|--C. spinosum (Sowerby 1824)V89 (see below for synonymy)
|--C. springvaleense Rutsch 1942 [incl. Capulus gatunensis, Cr. gatunense]W62
|--C. striatum Say 1826W62
|--C. subsutum Guppy 1867W62
|--C. umbrella (Deshayes 1830)V89
`--C. waltonenseW62
Calyptraeidae incertae sedis:
Dispotaea Say 1824 [=Dispotea (l. c.); Dispoteana, Dispotaeinae]BR05
|--*D. costata (Say 1820) [=Calyptraea costata]BR17
|--D. concameratum (Reeve 1859) [=Crucibulum (Dispotaea) concameratum]PP78
|--D. marensis (Weisbord 1962) [=Crucibulum (Dispotaea) marense]W62
`--D. venezuelana (Weisbord 1962) [=Crucibulum (Dispotaea) venezuelanum]W62
Clypeola Gray 1867 [=Zegalerus Finlay 1927]W93
|--*C. tenuis Gray 1867W93, P61 [=Sigapatella tenuisD56, *Zegalerus tenuisW93; incl. Calyptraea scutumD56]
|--‘Zegalerus’ crater Finlay 1927P61 [=Trochita alta Hutton 1885 non Conrad 1855F26, Calyptraea altaF26]
|--C. hedleyi (Smith 1915)W93 [=Calyptraea hedleyiF26, Zegalerus hedleyiF26]
|--‘Zegalerus’ peramplus Powell & Bartrum 1929PB29
|--‘Zegalerus’ tatei Finlay 1927 [=Calyptraea corrugata Tate 1893 nec Broderip 1835 nec Forbes 1846]F27
`--‘Zegalerus’ tumens Finlay 1930P61
Maoricrypta Finlay 1927P61
|--*M. costata (Sowerby 1824) [=Crepidula costata]P61
|--M. densistriata (Suter 1917) [=Crepidula densistriata]F26
|--M. halitoidea (Marwick 1926) [=Crepidula halitoidea]F26
|--M. hochstetteriana (Wilckens 1922) [=Crepidula hochstetteriana]F26
|--M. opuraensis (Powell & Bartrum 1928) [=Crypta opuraensis]PB29
|--M. radiata [=Pilaeopsis radiatus; incl. Crepidula striata (n. d.)]F26
|--M. wilckensi (Finlay 1924)F26 [=Crepidula wilckensiF26, C. incurva Zittel 1865 non (Broderip 1834)F27]
`--M. youngi Powell 1940P61
Zeacrypta Finlay 1927W93
|--*Z. monoxyla (Lesson 1830) [=Calyptraea monoxyla, Maoricrypta (*Zeacrypta) monoxyla]P61
`--Z. immersa (Angas 1865)W93
Ergaea Adams & Adams 1854 [Ergaeina, Ergaeinae]BR17
|--*E. plana (Adams & Reeve 1850) [=Calyptraea plana]BR17
`--E. walshi (Reeve 1859)WBS-S15
Galericulus altus (Seeley 1861)TTE93
Lithedaphus longirostrisO42
*Bostrycapulus aculeatus (Gmelin 1791)W93 [=Patella aculeataH09, Crepidula aculeataW93; incl. C. californicaC64, C. echinusC64, C. hystryxC64]
Calyptraeidae [Calyptraeacea, Calyptraina, Crepidulacea, Crepiduladae, Crepidulidae, Galeridae, Galerina, Galerinae, Trochitina, Trochitinae]
Crucibulum auricula (Gmelin 1791)MP65 [=Patella auriculaMP65, Calyptraea auriculataG79, Crucibulum scutellatum var. auriculatumW62; incl. Ca. cuvieriG79, Cr. auricula var. costata non C. costatumW62]
Crucibulum spinosum (Sowerby 1824)V89 [incl. Cr. cinereaC64, Calyptraea hispidaC64, Cr. maculataC64, Cr. pezizaC64, Calypaeopsis tubiferaC64, Cr. tubiferaC64]
*Type species of generic name indicated
References
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