Parvamussium (n.) Sacco, 1897a, 12(298): 102; Sacco, 1897c, pt. 24 (Pectinidae): 48, type species (OD) Pecten (Pleuronectes) duodecimlamellatus Bronn, 1831, 2: 624; Propeamussiidae. parvi-, parvus; amussium, n., a horizontal wheel for denoting the direction of the wind (Lewis & Short, 1984). 小さな風向計の書付け板;ワタゾコツキヒガイ科オボロツキヒガイ属 77
Parvikellia (f.) Laseron, 1956, 24(2): 9, type species (OD) Parvikellia isolata Laseron, 1956, 24(2): 11, figs. 8, 8a; Lasaeidae. parvi-, parvus; Kellia Turton, 1822: xix, 56-57. 小さなコハクノツユガイ属;チリハギガイ科 141
Parviperna (f.) Iredale, 1939, 5(6), Moll., pt. 1: 319, 322, type species (OD) Parviperna perexigua Iredale, 1939, 5(6), Moll., pt. 1: 323, pl. 5, figs. 1, 1a [= Perna nucleus Lamarck, 1819, 6(1): 142, Australia (fide Lamprell & Healy, 1998, 2: 108); Isognomonidae. parvi-, parvus; Perna Philipsson, 1788: 20. 小さなペルナイガイ属;マクガイ科ヘリトリアオリガイ属 71
Parvithracia (f.) Finlay, 1926, 57: 461, type species (OD) Montacuta triquetra Suter, 1913: 915 (1913), pl. 53, figs. 7 and 7a (1915), non Verrill & Bush, 1898, 20(1139): 782-783, pl. 91, fig. 3, = Parvithracia suteri Finlay, 1927, 57: 529; Thraciidae. parvi-, parvus; Thracia Blainville, 1824, 32: 347. 小さなスエモノガイ属;スエモノガイ科312
parvus L., adj. A, (1) small, little, cheap, (2) ignorable, unimportant. 小さな、つまらない
Patinopecten (m.) Dall, 1898, 3(4): 695, type species (OD) Pecten caurinus Gould, 1850b, 3(22): 345, Oregon; Pectinidae. L. patina, ae, f., a flat dish, pan, stewpan; Pecten Müller, 1776: 248. 浅い大皿の様なヨーロッパホタテガイ属;イタヤガイ科アラスカホタテガイ属 91
paytenorum Payten families. ペイトゥン家の人々 Example: Lentillaria p. (Iredale, 1937, 8(4): 240-241, pl. 16, figs. 2-3), Messrs. T. and F. Payten of Lord Howe Island.