340 
PH YLLONELL A— Continued. 
solex Ben. & Hesse, 1863; 1864, 70-71, pi. 5, figs. 1-8 (in Solea vulgaris). — Braun, 
1890a, 409, 418, 424, 446, 465, 475, 512, 519, 528, 547, 552. — Cunningham, 
1890a, 93-96, figs. C-D.— Goto, 1899, 266.— Lorenz, 1878a, 434.— Mont., 1892, 
106, 115, 124, 125, 126 (to Epibdella); 1902, 139 (to Epibdella). — Pratt, 1900, 
655, 657, fig. 6. — Scott, 1901, 142-143, pi. 8, fig. 17 (in S. v.; Clyde River); 
190i, 344 (in Solea vulgaiis; Irish Sea); 1905, 118 (in Scott, 1901, pi. 8). — 
Tasch., 1878, 564, 568 (Phylonella) (to Trist.). 
PHYLOAELLA Lorenz, 1878a, 4M, for Phyllonella. 
PIXTXERIA Poche, 1907, Jan. 4, 125, Hoploderma Cohn, 1893, not Michselis, 
renamed, hence type mesocoelium. 
PLACOPLECTAXUM Dies., 1858e, 315, 384 (Discocotyle, 1850, renamed, hence ri^e 
sagittatum; also type by fii'st species rule and because it is the only positive 
species). — Braun, 1890a, 518. — Tasch., 1879, 239. 
kirundinaceum (Bartels, 1834) Dies., 1858e, 384, to (Discocotyle). 
lei^togastei' (Leuck., 1830) Dies., 1858e, 384 to (Discocotyle). — Tasch., 1879, 245 
(to Octobothi’ium). 
sagittatum (Leuck., 1842) Dies., 1858e, 384. — Tasch., 1879, 244 (to Octobothrium). — 
Linst., 1879 (reported for Catostomus teres). 
PLACUXELLA Ben. & Hesse, 1863; 1864, 65, 66, 71-74 (pini tvpe bvpage prece- 
dence).— Braun, 1890a, 411, 412, 415, 469, 498, 511, 516, 517, 519,^523, 526, 528; 
1891d, 422.— Gamb., 1896a, 73.— Massa, 1903, 252; 1906, 43, 44, 51 {sya. of 
Trochopus), 58 (Ptacunella). — Mont., 1888a, 7, 10, 11, 13, 52,66, 86, 87,97; 
1891, 104, 105, 107, 111; 1899, 98; 1903, 335 (-=Trochopus).— Par. & Perugia, 
1890, 13.— Par. & Mont., 1902, Dec., 46.— Pratt, 1900, 646, 648.— St.-Remv, 
1898. 534.— Scott, T., 1901, 143.— Stoss., 1898, 7-8.— Tasch., 1878, 566 (sjm. 
of Trht. CuA'.). 
1906; Ptacunella Massa, 1906, 58, misprint. 
exacantha Mont., 1891, 104, for hexacantha. 
hexacantha Par. & Perugia, 1889, 740-741, fig. 1 (in Serranus gigas; GenoAm); 1890, 
740-741, fig. 1; 1890, 5< 1894, 594.— Braun, 1890a, 418, 528, 547, 552.— Massa, 
1906, 47, 59 (to Trochopus).- — Mont., 1891, 1892s:, 104, pi. 6, fig. 31 (exa- 
cantha).— Par., 1899, 3; 1902, 2 (in S. g.; Elba). 
jnni Ben. <k Hesse, 1863; 1864. 72, 73. pi. 5, fis^!. 9-18 (hi Trigla pini). — Braun, 
1890a, 418, 465, 528, 547, 552.— Par. & Penigia, 1889, 740; 1890, 740; 1890, 5; 
1899, 3. — Massa, 1906, 57 (to Trochopus), 64 (of Scott, 1901, 344) (sati. of 
Trochopus diplacanthus Massa). — Mont., 1888a, 11. — Par., 1902, 2 (in Trigla 
hhundo; Elba). — Pratt, 1900, 655, 657, fig. 8. — Scott, 1901, 344—345, 1 fig. 
(in Trigla hhundo; Irish Sea); 1901, 143 (in Trigla pini). — Tasch., 1878, 
564-685 (to Trist.). 
rliombi Ben. k Hesse, 1863; 1864, 73-74, pi. 6, figs. 1-7 (in Rhombus maximus). — 
Braun, 1890a, 412, 419. 465, 528. 547, 551. — Massa, 1906, 58 (to Trochopus). — 
Mont., 1888a, 11.— Tasch., 1878,' 564, 568 (to Trist.). 
lalZeiPar. & Perus:ia, 1895, (3) (in Xaucratesductor; Genova). — Looss, 1902m, 746. — 
Massa, 1903,'^252; 1906, 44.— St.-Remy, 1898, 534.— Stoss., 1898, 8 (in Xau- 
crates ductor; Trist.). — TAi)e of AncATocotyle 1903. 
PLACUXELLfiE Par. A Perugia, 1889, 740; 1890, 740. 
PLAGIOPELTIX^Tl Mont., 1903, 336 (subf. of Octocotylidse). 
PLAGIOPELTIS Dies., 1850a, 289, 416-417 (m. duplicata); 1858e, 314, 368-369. — 
Ben. k Hesse, 1864, 84. — Braun, 1890a, 518, 546. — Cerf., 1895h, 920; 1896, 
515. — Goldb., 1855a, 19. — Mont., 1903, 336 tsAm. of Hexacotyle) — Tasch., 
1879, 249 (sAUi. of Hexacotyle BlaiuA'.). — See Hexacotyla. 
du'pUcata (Rud., 1819) Dies., 1850a, 417 (includes Polyst. thAuini Delaroche, 
1811; Hexacotyla tliAmni Blaiiw.); 1858e, 369 (hi TliAmnus brachypterus; 
Balearic Isles, Vindobonse). — Tasch., 1879, 250 (sati. of Hexacotyle tliAUini 
(Delaroche)). 
thynni (Delaroche, 1811) Braun, 1891 d, 421. 
PLAGIOPORUS Staff.. 1904, May 3, 493-494 (m. serotinus); nXdyio';, oblique; 
TtopoS, pore. 
serotinus Staff., 1904, May 3, 493—494 (in Moxostoma macrolepidotum L. S.; 
Canada). 
