C. W. Stiles 
119 
Acanthocephala : 
Gigantorhynchus Hamann, 1892 c?, 196, type echinodiscus (in Myrmecophaga 
juhata, M. bivittata ; Brazil). 
10. The Secretary presents the following generic names for definite 
rejection from the “ Official List,” on the ground that they are pre¬ 
occupied (see Art. 34). 
Trematoda: 
Acanthocephala Dies., 1858, not Laporte, 18.32. 
Acrodactyla Staff., 1904, not Hal., ante 1846. 
Anadasraus Looss, 1899, not Walsingham, 1897. 
Anisogaster Looss, 1901, not Deyr, 1863. 
Astia Looss, 1899, not Koch, 1879. 
Baris Looss, 1899, not Germ., 1817. 
Brachymetra Stoss., 1904, not Mayr, 1865. 
Creadiwn Looss, 1899, not VieilL, 1816. 
Crossodera Duj., 1845, not Gould, 1837. 
Eurycoelum Brock, 1886, not Chaudoir, 1848. 
Eurysoma Duj., 1845, not Gistl., 1829. 
Leioderma Staff., 1904, not Will.-Suhm, 1873. 
Leptalea Looss, 1899, not King, 1839. 
Leptosoma Staff, not Leach, 1819. 
Levinsenia Stoss., 1899, not Mesnil, 1897. 
Macraspis Olss., 1868 or 1869, not McL., ante 1835. 
Megacetes Looss, 1899, not Thomas, 1859. 
Microscapha Looss, 1899, not LeConte, 1866. 
Polyorchis Stoss., -1892, not Agassiz, 1862. 
Polysarcus Looss, 1899, not Fieb., 1853. 
Spathidhim Looss, 1899, not Duj., 1841. 
Stomylus Looss, 1899, not Fahraeu.s, 1871. 
Nematoda^: 
Acanthophorus Linst., 1876, not Serv., 1832 
Acanthosoma Mayer, 1844, not Curt., 1824. 
Aspidocephalus Dies., 1851, not Motsch, 1839. 
Brachynema Cobb, 1893, not Fieb., 1861. 
Cephalacanthus Dies., 1853, not Lac, 1802. 
Cephalonema Cobb, 1893, not Stimps, ante 1882. 
Clmetosoma Claparhde, 1863, not Westwood, 1851. 
Cheiracanthus Dies., 1838, not Agassiz, 1833. 
Cochins Zed., 1803, not Humph., 1797. 
Co7iocephahis Dies., 1861, not Thunb., 1812. 
Cystocephalus Rail., 1895, not Leger, 1892. 
^ This list contains a few names of organisms which are not Nematoda, but which 
have been classified as such at one time or another. 
