286 
HEXACOTYLE— Continued. 
1850; Plagiopeliis Dies., 1850a, 416-417 (diiplicata = tliAumi). 
acuta Goto, 1894a, 217-220 (in Th^mniis sibi; Hagi and Osatsiibe, (Hokkaido)). — 
St.-Remy, 1898, 557. 
eZf'^cm^Xord., 1840. 597, 600 (Diklibotlninni crassicaiidatnm renamed) (in Acipen- 
ser stellatus). — Dies., 1850a. 421 {syji. of Diclibothiiiim armatum Lenck. ). — 
Tasch., 1879, 254 (s>ti. of Diplobothriiun armatum Lenck). 
grossa Goto, 1894a, 220-222 (in Th\mniis sp.; Misaki). — St.-Remy. 1898, 557-558. 
lapridis Sai’s., . — Xord., 1840. 600 (in Lampris gidlatus). 
ocellatinn (Rud.. 1819) Blainv., 1828a, 571. — Dies.. 1850a, 413 (to Polyst. >. — AYrd., 
1840, 600 (in Testudo orbiculata). — Tasch., 1879, 252 (to Polyst.). 
pinguicola (Trentler, 1793) Chiaje, 1833, 13 (= Polyst.). 
thunninse, (Par. A Perugia. 1889) Goto, 1896. 352: 1899, 273-274, pi. 20, figs. 13-15. — 
Pratt, 1900, 657, fig. 38. — St.-Remy, 1898. 557. 
thynni (Delaroche, 1811) Xord., 1840, 597. 600. — Braun, 1890a. 418. 537, 548. — 
Dies.. 1850a, 417 (diiplicata. n"pe of Plagiopeltis). — Goto, 1899. 274. — Lint.. 
1901, 414 (in Sarda sarda), 446,‘figs. 296. 297. 298.— Par.. 1894, 578: 1899. 3-4; 
1902, 3 (in Pelamys sarda, Portoferrajo: Th^mnus thynnns. Elba). — Par. A 
Perugia. 1890, 7. — St.-Remy. 1898. 556-557. — Tasch.. 1879, 250 (satis.: Polyst. 
th. Roche, P. diiplicatum Rud., Hex. th. BlaimT. Plagiopeltis dnp. Dies.) 
(in ThATinus branchA’|)terus. Pelamys sarda: Xapoli). 
fencinim (Trentler, 1793) Blaim-., see Dies., 1850a. 410 (to Hexath>Tidiiim). 
HEXACOTA'LIDH: Mont.. 1899. ; 1903. 336 (snbf.: DiplobothrW (g. Diplo- 
bothi'ium); Plectanocotylinte (g. Plectanocotyle. Phyllocotyle)); 1905,77. 78. 
HEXASTOMA Rnd.. 1809a, 38. 451-457 (stibg. of Polyst. containing: integerrimnm 
[n-pe by inclusion], pinguicola, (genus in Ciu*.. 1836a, 264). — Dies.. 1850a, 
409 (sATi. of Hexathp-idiiim Trentler). — Knhn, T829. 358 (for Polyst. Rud.). — 
Thon, 1830, a'. 7, 341. — ^^Vallenstedt, 1847, 7. 
integerrimum (Froelich, 1791) Rnd.. 1809a, 451. 
pinguicola (Trentler, 1793) [Cua'.. 1836a. 264]. — Dies.. 1850a. 410 (to HexatiiATi- 
dinm) . — Dolley . 
venarum (Trentler, 1793) [Cua’., 1836a, 264 (to HexatliATidium)]. — Dies., 1850a, 
410 (to HexathATidium). 
HEXOSTOMA Rafinescpie, 1815, 151. n. n. for Polyst. Roche, hence type tliATini. 
HEXATHIRIDIOI BlainAT, 1821a. 144-145 (see Hexathp-idium): 1824a, 516; 1828a, 
571-572. 
rejiarum (Trentler. 1793) Blaim'., 1828a. 572. — Joy. 1835a, 505. — See Hexathy- 
ridium. 
HEXATHA'RIDIA Rafinesque, 1815. 151 (genus of Fasciolaria Avith Polyst. Zed. as 
SATi.) for HexathATidium. 
HEXATHYRIDIFM Trentler, 1793, ix. 19-22 (tA-pe by first-species rule, pinguicola; 
this seems to be taken as type by authoi's: see. for instance, Braun, 1889a, 317). — 
Blaim'., 1821a, 144-145 (Hexathiridium): 1824a, 516 (“Je dotite l^eaiicoiip 
qiie ce gem-e pnisse etre regarde comme A'eritablement intestinal; il est extre- 
mement rapproche dn polystome de Delaroche: anssi pensais-je qu'il a ete 
decrit a Pem'ers, ce qtie I’on A'oit dans ma definition des caracteres de Pordre ” ) : 
1828, 571-572.— Braun. 1890a, 518: 189:3a, 887. 891, 892, 894.— Burm.. 1856a, 
251 ('Hexathidium). — Cerf.. 1899a, 351, 371. — DaA*., 1877a. Ixxx. — Dies.. 
1850a. 288. 409-410. 412 (Blaim'., sati. of Polyst. Zed.); 1858e, 314. 368. — 
Encycl. methodirpie. Par., a'. 2. 455. — Goldb.. 1855, 17. — Hoyle. 1890. 539 
('probablA' a sati. for PolA'st.). — Joerdens, 1802, 66. — Lamotnoux. 1825, 193. — 
Lenck., 1863. o26; 1867. v. 2 (1). 150: 1868. a'. 2 (2), 264.— Looss. 1902m, 756.— 
Mont.. 1888a. 84 ('HexathA'ridum). 90. — Xord.. 1840. 601 (Hexathiridium). — 
Rud.. 1801a, 58; 1809a, 22.— Stoss., 1898, 11.— Tasch.. 1879. 324, 251 (sati. 
of Polyst. Zed.). — Thon., 18:30. a'. 7, :341--342 (Hexathiridium). 
1809: He:^toma Rud., 1809a, 38. 451M57 (tAqDe by inclusion pinguicola). 
1815: Hexathp-idia Rafinesque. 1815. 151. 
1821; Hexathiridium Blaim'., 1821a, 144—145. 
1888; HexathAT’idum ]\Iont., 1888a, 84. 
1856; Hexat iridium Burm., 1856a, 261. 
affine Dies., 1850a, 410 (t. h. Bombinator igneus; Berlin). — R. BL, 1895, 104. — 
Schmitz, 1826, 15, figs. 1-13. 
