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PoLYPTYxiDAE Pchelintsev, 1965 [after 3 Feb-
ruary]
Reference: Murchisoniata Mezozola Gornogo
Kryma: 121
Type genus: -[Polyptyxis Pchelintsev, 1924
Remarks: Original spelling Polyptyxisidae.
POLYTREMARIINAE WenZ, 1938 []
Reference: Handbuch derPaläozoologie, 6(1 ):
40,43,155
Type genus: -tPolytremaha d'Orbigny, 1850
Remarks: -idae. Knight, Batten & Yochelson
(in Moore, 1960:217).
PoLYTROPiDAE Ulrich, 1897
Reference: [in Ulrich & Scofteld] The Geological
and Natural History Survey of Minnesota,
vol. 3(2) [Paleontology]: 1043
Type genus: -fPolytropIs de Koninck, 1881
Remarks: Original spelling Polytrophidae, an
incorrect spelling as indicated by the index
which refers to Polytrophis in place of Polytropls.
Invalid: type genus a junior homonym
of Polytropis Sandberger, 1875. See Po-
leumitidae.
PoMACEiNAE Starobogatov, 1983 [after 22 Feb-
ruary]
Reference: [in Starobogatov & Sitnikova] Vsesoiuznoe
soveshchanle po Izuchenilu molliuskov,
7: 22
Type genus: Pomacea,1810
PoMATiiNAE Gray, 1853 [12 February]
Reference: [in L. Pfeiffer] Catalogue of Phaneropneumona
or terrestrial operculated Mollusca
in the collection of the British Museum:
211
Type genus: Pomatlas [see Remarks for au-
thorship]
Remarks: Original spelling Pomatiaina. -idae
[as -acea], Troschel (1856 [in 1856-1891]:
65). Pfeiffer [in Gray, same reference] cited
the type genus of the family as Pomatlas Stud-
er, 1789, but he used it in the sense of Hartmann
(1821) (for species of Cochlostoma)
and placed the type species of Pomatlas {Ner-
ita elegans Müller, by monotypy) in Cyclostoma.
Some authors have considered that
Pomatlas sensu Cochlostoma was a different
name, "Pomatlas Hartmann, 1821".
When this interpretation is followed, Pomatiinae
Pfeiffer is invalid because its type ge-
nus, "Pomatlas Hartmann, 1821", is a junior
homonym oí Pomatlas Studer, 1 789. See also
Pomatiidae Newton, 1 891
BOUCHET&ROCROI
PoMATiiDAE Newton, 1891 [April]
Reference: Annals and Magazine of Natural
History, ser. 6, 7: 347
Type genus: Pomai/as Studer, 1789
Remarks: Prior to Newton, Pomatlas Studer,
1 789, was treated as a synonym of Cyclostoma
"Draparnaud, 1801", and Pomatiidae Gray was
based on Pomatlas sensu Hartmann, 1821,
i.e. in the sense of Cochlostomatidae. Newton
re-established Pomatiidae explicitly based
on Pomatlas Studer. -oidea, H. B. Baker (1 964:
169); -inae, Parkinson, Hemmen & Groh
(1987:66).
PoMATiopsiNAE Stimpson, 1865 [August]
Reference: Smithsonian Miscellaneous Collections,
20^: 4
Type genus: Pomaf/ops/s Tryon, 1862
Remarks: -idae, F. Baker (1926: 197); -ini,
Davis & Kuo (in Davis et al., 1985: 69).
PoMATOBRANCHiATA Schweigger, 1820
Reference: Handbuch der Naturgeschichte der
skelettlosen ungegliederten Thiere: 744
Remarks: Taxon containing the genera Akera,
Notarchus, Apiysia, Pleurobranchus, and
Pleurobranchaea. Established at unspecified
rank between (order) Gastropoda and genus.
Treated as a family (not available as
such: not based on a genus) by Gravenhorst
(1845:34).
PoMMEROzYGiiDAE Gründol, 1999 [December]
Reference: Paläontologische Zeitschrift, 73(3-
4): 251
Type genus: -fPommerozygia Gründe!, 1998
PoMPHOLiciNAE Dalí, 1866 [August]
Reference: Proceedings of the California
Academy of Natural Sciences, 3: 264
Type genus: Pompholyx Lea, 1856
Remarks: Original spelling Pompholinae. Spelled
Pompholiginae by Dal! (1870c: 352). -idae,
Hannibal (1912a: 161). Invalid: type genus a
junior homonym of Pompholyx Gosse, 1851
[Rotifera]. See Pompholycodeinae.
PoMPHOLYCODEiNAE Lindholm, 1927 [August]
Reference: Trudy Komissli po Izuchenilu Ozera
Balkala [Travaux de la Commission pour
l'Etude du Lac Bajkal], 2: 1 80
Type genus: Pompholycodea Lindholm, 1927
Remarks: Replacement name for Pompholycinae
[spelling Pompholyginae used by Lindholm],
invalid because its type genus is a
junior homonym.