286 



HEXACOTYLE — Continued. 



1850: Plagiopeltis Dies., 1850a, 416-417 (duplicata = thynni). 

 acuta Goto, 1894a, 217-220 (in Thynnus sibi; Hagi and Osatsube, (Hokkaido)). — 

 St.-Remy, 1898, 557. 



elegansNord., 1840, 597, 600 (Diklibothrium crassicaudatum renamed) (inAcipen- 

 ser stellatus). — Dies., 1850a, 421 (syn. of Diclibothrium armatum Leuck.). — 

 Tasch., 1879, 254 (syn. of Diplobothrium armatum Leuck). 



grossa Goto, 1894a, 220-222 (in Thynnus sp.; Misaki).— St.-Remy, 1898, 557-558. 



lapridis Sars., . — Nord., 1840, 600 (in Lampris gullatus). 



ocellatum (Rud., 1819) Blainv., 1828a, 571.— Dies., 1850a, 413 (to Polyst.).— Nord., 



1840, 600 (in Testudo orbiculata).— Tasch., 1879, 252 (to Polyst.). 

 pinguicola (Treutler, 1793) Chiaje, 1833, 13 (= Polyst.). 



thunninse (Par. & 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) Nord., 1840, 597, 600.— Braun, 1890a, 418, 537, 548.— 



Dies., 1850a, 417 (duplicata, type 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; Thynnus thynnus, Elba). — Par. & 

 Perugia, 1890, 7.— St.-Remy, 1898, 556-557.— Tasch., 1879, 250 (syns.: Polyst. 

 th. Roche, P. duplicatum Rud., Hex. th. Blainv., Plagiopeltis dup. Dies.) 

 (in Thynnus branchypterus, Pelamys sarda; Napoli). 



venarum (Treutler, 1793) Blainv., see Dies., 1850a, 410 (to Hexathyridium). 

 HEXACOTYLIDtE Mont., 1899, ; 1903, 336 (subf.: Diplobothringe (g. Diplo- 

 bothrium); Plectanocotylinae (g. Plectanocotyle, Phyllocotyle)); 1905,77, 78. 

 HEXASTOMA Rud., 1809a, 38, 451-457 (subg. of Polyst. containing: integerrimum 

 "[type by inclusion], pinguicola, (genus in Cuv., 1836a, 264). — Dies., 1850a, 



409 (syn. of Hexathyridium Treutler).— Kuhn, 1829, 358 (for Polyst. Rud.).— 

 Thon, 1830, v. 7, 341.— Wallenstedt, 1847, 7. 



integerrimum (Frcelich, 1791) Rud., 1809a, 451. 



pinguicola (Treutler, 1793) [Cuv., 1836a, 264].— Dies., 1850a, 410 (to Hexathyri- 

 dium). — Dolley. 



venarum (Treutler, 1793) [Cuv., 1836a, 264 (to Hexathyridium)].— Dies., 1850a, 



410 (to Hexathyridium). 



HEXOSTOMA Rafinesque, 1815, 151, n. n. for Polyst. Roche, hence type thynni. 

 HEXATHIRIDIUM Blainv., 1821a, 144-145 (see Hexathvridium) ; 1824a, 516; 1828a, 

 571-572. 



venarum, (Treutler, 1793) Blainv., 1828a, 572.— Joy, 1835a, 505.— See Hexathy- 

 ridium. 



HEXATHYRIDIA Rafinesque, 1815, 151 (genus of Fasciolaria with Polyst. Zed. as 



syn.) for Hexathyridium. 

 HEXATHYRIDIUM Treutler, 1793, iv, 19-22 (type by first-species rule, pinguicola; 



this seems to be taken as type bv authors; see, for instance, Braun, 1889a, 317). — 

 Blainv., 1821a, 144-145 (Hexathiridium); 1824a, 516 j"Je doute beaucoup 

 que ce genre puisse etre regarde comme veritablement intestinal ; il est extre- 

 mement rapproche du polystome de Delaroche; aussi pensais-je qu'il a ete 

 decrit a l'envers, ce que Ton voit dans ma definition des caracteres de l'ordre " ) ; 

 1828, 571-572.— Braun, 1890a, 518; 1893a, 887, 891, 892, 894.— Burm., 1856a, 

 251 (Hexatiridium).— Cerf., 1899a, 351, 371.— Dav., 1877a, lxxx.— Dies., 

 1850a, 288, 409-410, 412 (Blainv., syn. of Polyst. Zed.); 1858e, 314, 368.— 

 Encycl. methodique, Par., v. 2, 455.— Goldb.', 1855, 17.— Hoyle, 1890, 539 

 (probably a syn. for Polvst.). — Jcerdens, 1802, 66. — Lamouroux, 1825, 193. — 

 Leuck., 1863, 526; 1867, v. 2 (1), 150; 1868, v. 2 (2), 264.— Looss, 1902m, 756.— 

 Mont., 1888a, 84 (Hexathyridum), 90.— Nord., 1840, 601 (Hexathiridium).— 

 Rud.. 1801a, 58; 1809a, 22.— Stoss., 1898, 11.— Tasch., 1879, 324, 251 (syn. 

 of Polyst. Zed.).— Thon., 1830, v. 7, 341-342 (Hexathiridium). 



1809: Hexastoma Rud., 1809a, 38, 451-457 (type by inclusion pinguicola). 



1815: Hexathyridia Rafinesque, 1815, 151. 



1821: Hexathiridium Blainv., 1821a, 144-145. 



1888: Hexathyridum Mont., 1888a, 84. 



1856: .Hexatiridium Burm., 1856a, 261. 

 a fine Dies., 1850a, 410 (t. h. Bombinator igneus; Berlin).— R. Bl., 1895, 104.— 

 Schmitz, 1826, 15, figs. 1-13. 



