THE NEMATODES OBSERVED IN MAN 376 Family. _Anguillulidæ_ 377 Genus. _Rhabditis_, Dujardin, 1845 377 _Rhabditis pellio_, Schneider, 1866 377 _Rhabditis niellyi_, Blanchard, 1885 378 _Rhabditis_, sp. 378 Genus. _Anguillula_, Ehrenberg, 1826 379 _Anguillula aceti_, Müller, 1783 379 Genus. _Anguillulina_, Gervais and Beneden, 1859 379 _Anguillulina putrefaciens_, Kühn, 1879 379 Family. _Angiostomidæ_, Braun, 1895 379 Genus. _Strongyloides_, Grassi, 1879 379 _Strongyloides stercoralis_, Bavay, 1877 380 Family. _Gnathostomidæ_ 384 Genus. _Gnathostoma_, Owen, 1836 384 _Gnathostoma siamense_, Levinson, 1889 384 _Gnathostoma spinigerum_, Owen, 1836 385 Family. _Dracunculidæ_, Leiper, 1912 385 Genus. _Dracunculus_, Kniphoff, 1759 385 _Dracunculus medinensis_, Velsch, 1674 386 Genus (of _Crustacea_). _Cyclops_, Müller, 1776 390 Family. _Filariidæ_ 390 Sub-family. _Filariinæ_ 390 Genus. _Filaria_, O. Fr. Müller, 1787 390 _Filaria bancrofti_, Cobbold, 1877 390 _Filaria demarquayi_, Manson, 1895 403 _Filaria taniguchi_, Penel, 1905 404 _Filaria_ (?) _conjunctivæ_, Addario, 1885 404 Group. _Agamofilaria_, Stiles, 1906 406 _Agamofilaria georgiana_ 406 _Agamofilaria palpebralis_, Pace, 1867 (_nec_ Wilson, 1844) 406 _Agamofilaria oculi humani_, v. Nordmann, 1832 406 _Agamofilaria labialis_, Pane, 1864 407 _Filaria (?) romanorum-orientalis_, Sarcani, 1888 407 _Filaria (?) kilimaræ_, Kolb, 1898 407 _Filaria_ (?) sp. ? 407 Genus. _Setaria_, Viborg, 1795 407 _Setaria equina_, Abildg., 1789 408 Genus. _Loa_, Stiles, 1905 409 _Loa loa_, Guyot, 1778 409 Genus. _Acanthocheilonema_, Cobbold, 1870 414 _Acanthocheilonema perstans_, Manson, 1891 414 Genus. _Dirofilaria_, Railliet and Henry, 1911 416 _Dirofilaria magalhãesi_, R. Blanchard, 1895 417 Sub-family. _Onchocercinæ_, Leiper, 1911 417 Genus. _Onchocerca_, Diesing, 1841 417 _Onchocerca volvulus_, R. Leuckart, 1893 417 Family. _Trichinellidæ_, Stiles and Crane, 1910 419 Sub-family. _Trichurinæ_, Ransom, 1911 419 Genus. _Trichuris_, Röderer and Wagler, 1761 419 _Trichuris trichiura_, Linnæus, 1761 419 Sub-family. _Trichinellinæ_, Ransom, 1911 421 Genus. _Trichinella_, Railliet, 1895 421 _Trichinella spiralis_, Owen, 1835 421 History of the Development of _Trichinella spiralis_ 423 Family. _Dioctophymidæ_ 431 Genus. _Dioctophyme_, Collet-Megret, 1802 431 _Dioctophyme gigas_, Rudolphi, 1802 431 Family. _Strongylidæ_ 432 Sub-family. _Metastrongylinæ_, Leiper, 1908 432 Genus. _Metastrongylus_, Molin, 1861 432 _Metastrongylus apri_, Gmelin, 1789 432 Sub-family. _Trichostrongylinæ_, Leiper, 1908 433 Genus. _Trichostrongylus_, Looss, 1905 434 _Trichostrongylus instabilis_, Railliet, 1893 434 _Trichostrongylus probolurus_, Railliet, 1896 435 _Trichostrongylus vitrinus_, _Looss_, 1905 435 Genus. _Hæmonchus_, Cobb., 1898 436 _Hæmonchus contortus_, Rudolphi, 1803; Cobb., 1898 436 Genus. _Nematodirus_, Ransom, 1907, emend. Railliet, 1912 438 Sub-genus. _Mecistocirrus_, Railliet, 1912 438 _Mecistocirrus fordi_, Daniels, 1908 438 Sub-family. _Ancylostominæ_, Railliet, 1909 438 Group. _Œsophagostomeæ_, Railliet and Henry, 1909 439 Genus. _Ternidens_, Railliet, 1909 439 _Ternidens deminutus_, Railliet and Henry, 1905 440 Genus. _Œsophagostomum_, Molin, 1861 441 _Œsophagostomum brumpti_, Railliet and Henry, 1905 441 _Œsophagostomum stephanostomum_ var. _thomasi_, Railliet and Henry, 1909 443 _Œsophagostomum apiostomum_, Willach, 1891 444 Group. _Ancylostomeæ_, Railliet and Henry, 1909 445 Genus. _Ancylostoma_, Dubini, 1843, emend. Looss, 1905 445 _Ancylostoma duodenale_, Dubini, 1843 445 _Ancylostoma ceylanicum_, Looss, 1911 456 _Ancylostoma braziliense_, Gomez de Faria, 1910 456 Group. _Bunostomeæ_, Railliet and Henry, 1909 456 Genus. _Necator,_ Stiles, 1903 457 _Necator americanus_, Stiles, 1902 457 _Necator exilidens_, Cummins, 1912 459 Ancylostomiasis 459 Group. _Syngameæ_, Railliet and Henry, 1909 459 Genus. _Syngamus,_ von Siebold, 1836 459 _Syngamus kingi_, Leiper, 1913 459 Family. _Physalopteridæ_ 460 Genus. _Physaloptera_, Rudolphi, 1819 460 _Physaloptera caucasica_, v. Linstow, 1902 461 _Physaloptera mordens_, Leiper, 1907 461 Family. _Ascaridæ_, Cobbold, 1864 461 Sub-family. _Ascarinæ_ 461 Genus. _Ascaris_, L., 1758 461 _Ascaris lumbricoides_, L., 1758 463 _Ascaris_ sp. 465 _Ascaris texana_, Smith et Goeth, 1914 465 _Ascaris maritima_, Leuckart, 1876 465 Genus. _Toxascaris_, Leiper, 1907 465 _Toxascaris limbata_, Railliet and Henry, 1911 466 Genus. _Belascaris_, Leiper, 1907 466 _Belascaris cati_, Schrank, 1788 466 _Belascaris marginata_, Rudolphi, 1802 466 Genus. _Lagocheilascaris_, Leiper, 1909 466 _Lagocheilascaris minor_, Leiper, 1909 467 Family. _Oxyuridæ_ 467 Genus. _Oxyuris_, Rudolphi, 1803 467 _Oxyuris vermicularis_, Linnæus, 1767 467 Family. _Mermithidæ_ 469 Genus.