Belongs within: Palaeoheterodonta.
Contains: Mutela (Mutela), Aspatharia (Spathopsis).
The Mutelidae are a family of freshwater clams found from the Cretaceous to the present day, characterised by a greatly reduced dentition in the hinge.
Characters (from Cox et al. 1969): Shell mostly unsculptured; beaks smooth or faintly corrugated, without well-defined remains of embryonic shell; hinge with cardinals only or edentulous, few with secondary taxodont dentition; nacre soft, richly tinted, pallial line rarely with slight posterior sinus. Labial palps large, anal and superanal openings not separated; mantle generally closed behind into separate branchial and anal siphons; marsupium occupying inner gills; lasidium larva composed of three segments, median one bearing single shell.
<==Mutelidae [Iridinidae, Mutelacea, Mutelinae, Pliodontidae] |--Anodontites laciranusG88 |--Mycetopoda dilucula Pilsbry 1921SB93 |--LeilaA66 | |--L. blainvillianaA66 | `--L. giganteaA66 |--TriquetraA66 | |--T. corrugataA66 | `--T. obliquaA66 |--MonocondylaeaG88 | |--M. (Plagiodon) isocardioidesA66 | `--M. marshallianaG88 |--Mutela Scopoli 1777 (see below for synonymy)PB27 | |--M. (Mutela)PB27 | `--M. (Chelidonopsis Ancey 1887) [=Chelidonura de Rochebrune 1886 non Adams 1850, Chelidoneura (l. c.)]PB27 | |--M. (*C.) hirundo (v. Martens 1881) (see below for synonymy)PB27 | `--M. (C.) carrei (Putzeys 1898) (see below for synonymy)PB27 |--Chambardia Bourguignat 1890PB27 | |--*C. letourneuxi Bourguignat 1890PB27 | |--C. bourguignati Letourneux in Bourguignat 1890PB27 | |--C. locardiana Bourguignat 1890PB27 | |--C. pharaonum Bourguignat 1890PB27 | `--C. rhynchoidea Bourguignat 1890PB27 |--Aspatharia Bourguignat 1885 [=Asphataria (l. c.)]PB27 | |--A. (Aspatharia)PB27 | | |--A. (A.) rugifera (Dunker 1858) (see below for synonymy)PB27 | | |--A. (A.) chapini Pilsbry & Bequaert 1927PB27 | | |--A. (A.) corrugata (Dautzenberg 1893) [=Spatha corrugata]PB27 | | |--A. (A.) dahomeyensis (Lea 1859) (see below for synonymy)PB27 | | |--A. (A.) decorsei (Germain 1904) (see below for synonymy)PB27 | | |--A. (A.) divaricata (v. Martens 1897) [=Spatha divaricata]PB27 | | |--A. (A.) droueti (Chaper 1885) (see below for synonymy)PB27 | | |--A. (A.) flava Pilsbry & Bequaert 1927PB27 | | |--A. (A.) fourtaui (Pallary 1903) [=Spathella fourtaui, Spatha fourtaui, S. fourteaui (l. c.)]PB27 | | |--A. (A.) kamerunensis (Walker 1910) [=Spatha (A.) kamerunensis]PB27 | | |--A. (A.) mabillei (Jousseaume 1886) (see below for synonymy)PB27 | | |--A. (A.) pfeifferiana (Bernardi 1860) (see below for synonymy)PB27 | | |--A. (A.) protchei (de Rochebrune 1886) (see below for synonymy)PB27 | | |--A. (A.) sarae (Preston 1913) [=Mutela sarae]PB27 | | |--A. (A.) semicorrugata (Preston 1909) [=Spatha semicorrugata]PB27 | | |--A. (A.) sinuata (v. Martens 1883) (see below for synonymy)PB27 | | |--A. (A.) stuhlmanni (v. Martens 1897) (see below for synonymy)PB27 | | `--A. (A.) subreniformis (Sowerby 1867) [=Anodon subreniformis, Spatha subreniformis]PB27 | |--A. (Arthropteron de Rochebrune 1904)PB27 | | `--A. (*A.) ouassouloui (de Rochebrune 1904) [=*Arthropteron ouassouloui]PB27 | |--A. (Brazzaea Bourguignat 1885) [=Brazzea (l. c.)]PB27 | | `--A. (*B.) anceyi (Bourguignat 1885) (see below for synonymy)PB27 | |--A. (Moncetia Bourguignat 1885)PB27 | | `--A. (M.) lavigeriana (Bourguignat 1886) (see below for synonymy)PB27 | `--A. (Spathopsis)PB27 `--Iridina Lamarck 1819 [=Eufira Gistel 1848, Platiris Lea 1838, Platyiris Agassiz 1846]PB27 | i. s.: ‘Pleiodon’ priscus von Ihering 1912PB27 |--I. (Iridina)PB27 | |--*I. (I.) exotica Lamarck 1819 (see below for synonymy)PB27 | |--I. (I.) hardeleti (Germain 1906) (see below for synonymy)PB27 | `--I. (I.) tchadiensis (Germain 1906) [=Pliodon (Cameronia) tchadiensis, Pleiodon tchadiensis]PB27 |--I. (Cameronia Bourguignat 1879)PB27 | |--I. (*C.) spekii Woodward 1859 (see below for synonymy)PB27 | |--‘Cameronia’ anceyi Bourguignat 1885PB27 | |--I. (C.) bourguignati (Ancey in Bourguignat 1885) [=Cameronia bourguignati, Pleiodon (C.) bourguignati]PB27 | |--‘Cameronia’ complanata Bourguignat 1886PB27 | |--‘Cameronia’ dromauxi Bourguignat 1886PB27 | |--I. (C.) giraudi (Bourguignat 1885) (see below for synonymy)PB27 | |--‘Cameronia’ guillemeti Bourguignat 1886PB27 | |--‘Cameronia’ jouberti Bourguignat 1886PB27 | |--I. (C.) landeaui (Bourguignat 1886) [=Cameronia landeaui, Pleiodon (C.) landeaui]PB27 | |--‘Cameronia’ locardiana Bourguignat 1886PB27 | |--‘Cameronia’ mabilliana Bourguignat 1886PB27 | |--‘Cameronia’ marioniana Bourguignat 1885PB27 | |--‘Cameronia’ moineti Bourguignat 1886PB27 | |--‘Cameronia’ obtusa Bourguignat 1886PB27 | |--‘Cameronia’ pulchella Bourguignat 1886PB27 | |--‘Cameronia’ randabeli Bourguignat 1886PB27 | |--‘Cameronia’ revoiliana Bourguignat 1885PB27 | `--I. (C.) vynckei (Bourguignat 1886) [=Cameronia vynckei, Pleiodon (C.) vynckei, Pliodon (C.) vynckei]PB27 `--I. (Pleiodon Conrad 1834) [=Pliodon Bourguignat 1879]PB27 |--I. (P.) ovata Swainson 1823 (see below for synonymy)PB27 |--I. (P.) diolibana (Bourguignat 1879) [=Pliodon diolibanus]PB27 |--I. (P.) elongata (Bourguignat 1879) [=Pliodon elongatus]PB27 |--I. (P.) letourneuxiana (Bourguignat 1879) [=Pliodon letourneuxianus]PB27 `--I. (P.) pachyodon (Bourguignat 1879) [=Pliodon pachyodon, Pliodon ovatus var. pachyodon]PB27
Aspatharia (Aspatharia) dahomeyensis (Lea 1859) [=Anodonta dahomeyensis, Spatha dahomeyensis; incl. An. senegalensis Lea 1859, Mutelina senegalica Jousseaume 1886]PB27
Aspatharia (Aspatharia) decorsei (Germain 1904) [=Spatha (Leptospatha) decorsei; incl. S. decorsei var. persinuata Germain 1908, Aspatharia decorsei var. persinuata, S. decorsei var. sinuata Germain 1904 (preoc.)]PB27
Aspatharia (Aspatharia) droueti (Chaper 1885) [=Spatha droueti; incl. S. (Leptospatha) droueti var. roseotincta Dautzenberg 1921, Aspatharia droueti var. roseotincta]PB27
Aspatharia (Aspatharia) mabillei (Jousseaume 1886) [=Spatha mabillei; incl. S. mabillei var. mamounensis Germain 1907, Aspatharia mabillei var. mamounensis]PB27
Aspatharia (Aspatharia) pfeifferiana (Bernardi 1860) [=Margaritana pfeifferiana, Spatha pfeifferiana, S. pfeifferi Germain 1908]PB27
Aspatharia (Aspatharia) protchei (de Rochebrune 1886) [=Spathella protchei, Spatha (Leptospatha) protchei; incl. Spatha cryptoradiata Putzeys 1898]PB27
Aspatharia (Aspatharia) rugifera (Dunker 1858) [=Anodonta rugifera; incl. Margaritana vignouana Bernardi 1859, *Aspatharia vignouana, Spatha (Aspatharia) vignoni Germain 1909, S. (A.) vignoniana Simpson 1914, Unio vignonana Reeve 1865]PB27
Aspatharia (Aspatharia) sinuata (v. Martens 1883) [=Spatha sinuata; incl. Mutela lukuluensis Preston 1913, M. mathildae Preston 1913]PB27
Aspatharia (Aspatharia) stuhlmanni (v. Martens 1897) [=Spatha stuhlmanni; incl. S. stuhlmanni var. comoensis Germain 1908, A. stuhlmanni var. comoensis, S. stuhlmanni var. comoeensis Germain 1908]PB27
Aspatharia (*Brazzaea) anceyi (Bourguignat 1885) [=*Brazzaea anceyi; incl. B. bourguignati Joubert in Bourguignat 1886, B. bridouxi Bourguignat 1886, B. charbonnieri Bourguignat 1886, B. coulboisi Bourguignat 1886, B. elongata Bourguignat 1886, B. eximia Bourguignat 1886, B. jouberti Bourguignat 1886, B. lavigeriana Bourguignat 1886, B. moineti Bourguignat 1886, B. newcombiana Bourguignat 1886, B. randabeli Bourguignat 1886, B. ventrosa Bourguignat 1886]PB27
Aspatharia (Moncetia) lavigeriana (Bourguignat 1886) [=Spatha (M.) lavigerina; incl. *Moncetia anceyi Bourguignat 1885 non Brazzaea anceyi Bourguignat 1885, S. (M.) anceyi, M. bridouxi Bourguignat 1886, M. jouberti Bourguignat 1886, M. moineti Bourguignat 1886, Spatha (Moncetia) moineti, S. (M.) monieti, Moncetia rochebruniana Bourguignat 1886]PB27
Iridina (Cameronia) giraudi (Bourguignat 1885) [=Cameronia giraudi, Pleiodon (C.) giraudi, Pliodon (C.) giraudi; incl. Cameronia charbonnieri Bourguignat 1886, Pli. (C.) charbonnieri, Pli. (C.) giraudi mut. elongata Germain 1908 non Pli. elongatus Bourguignat 1879, C. lavigeriana Bourguignat 1886, Pli. (C.) lavigeriei Germain 1908, C. lavigerina Bourguignat in Simpson 1900]PB27
Iridina (*Cameronia) spekii Woodward 1859 [=I. (Pleiodon) spekii, Mutela (Iridina) spekei, Pleiodon spekei, Pliodon spekei; incl. Cameronia admirabilis Bourguignat 1886, C. bridouxi Bourguignat 1886, Pliodon (Cameronia) bridouxi, C. coulboisi Bourguignat 1886, C. gigantea Bourguignat 1886, C. gosseti Bourguignat 1886, C. paradoxa Bourguignat 1886]PB27
*Iridina (Iridina) exotica Lamarck 1819 [=*Eufira exotica, Mutela exotica, *Platiris exotica, Iridina elongata (l. c.) non Pliodon elongatus Bourguignat 1879; incl. I. striata Swainson 1823]PB27
Iridina (Iridina) hardeleti (Germain 1906) [=Pliodon (Cameronia) hardeleti, Pleiodon hardeleti; incl. Pli. hardeleti var. molli Germain 1906, Iridina hardeleti var. molli, Pleiodon hardeleti var. molli]PB27
Iridina (Pleiodon) ovata Swainson 1823 [=Pleiodon ovatus; incl. Platiris (Iridina) leaii Sowerby in Lea 1852, *Ple. macmurtrei Conrad 1834, Iridina splendida Chenu 1858]PB27
Mutela Scopoli 1777 [incl. Calliscapha Swainson 1840, Mutelina Bourguignat 1885, Pseudomutela Simpson 1900, Spatha Lea 1838]PB27
Mutela (Chelidonopsis) carrei (Putzeys 1898) [=Burtonia carrei, Mutelina carrei, Pseudospatha carrei, P. leopoldvillensis Simpson 1900; incl. Chelidonopsis roubaudi Germain 1908]PB27
Mutela (*Chelidonopsis) hirundo (v. Martens 1881) [=Spatha (Mutela) hirundo, *Chelidonura hirundo; incl. Chelidonura arietina de Rochebrune 1886, Chelidonopsis arietina]PB27
*Type species of generic name indicated
References
[A66] Adams, H. 1866. List of land and freshwater shells collected by Mr. E. Bartlett on the Upper Amazons, and on the River Ucayali, eastern Peru, with descriptions of new species. Proceedings of the Zoological Society of London 1866: 440–445.
[G88] Gray, J. 1988. Evolution of the freshwater ecosystem: the fossil record. Palaeogeography, Palaeoclimatology, Palaeoecology 62: 1–214.
[PB27] Pilsbry, H. A., & J. Bequaert. 1927. The aquatic mollusks of the Belgian Congo, with a geographical and ecological account of Congo malacology. Bulletin of the American Museum of Natural History 53 (2): 69–602, pls 10–77.
[SB93] Skelton, P. W., & M. J. Benton. 1993. Mollusca: Rostroconchia, Scaphopoda and Bivalvia. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 237–263. Chapman & Hall: London.