ILLUSTRATIONS 



PLATES 



Following 



1. Tehnatochromis bifrenatus, new species, and Perissodus gracilis, new P^^® 



species 12 



2. Scales of Microdesmus 64 



3. Species of Diaciis, Colactis, and Tynomma, new genera of millipeds.. 112 



4. Species of Colactis and Heptium, new genera of millipeds 112 



5. Gravirnicolepis hrachiusculus Poey and Xenolepidichthys dalgleishi 



Gilchrist 150 



6. Gramtnicolepis hrachiusculus Poey 150 



7. Xenolepidichthys dalgleishi Gilchrist 164 



8, 9. Species of the trematode genus Brachycoelium Dujardin 190 



10. Poly goniaf annus smythi, new subspecies, and P.f. f annus (Edwards) _ 220 



11. Cercorchis sirenis, new species 224 



12-15. New species of Mexican fossil Echini of the genera Stomopnenstes, 



Clypeaster, Laganum, Enpatagus, and Lovenia 232 



16, 17. Heads of Exetastes 312 



18. Ovipositors and propodea of Exetastes 312 



19. Wings of Exetastes 312 



20, 21. Abdomens of Exetastes 312 



22-28. Moths of genus Rnpela: Male genitalia 388 



29-32. Moths of genus Rnpela: Female genitalia 388 



33. Moths of genus Rnpela 388 



34-61. Species and subspecies of Allopora and Stylaster 554 



62-64. Species of Cryptohelia 554 



65-69. Species of Errinopora 554 



70. Species of Errinopora, Allopora, and Distichopora 554 



71-73. Distichopora borealis, new species 554 



74. Distichopora sulcata Pourtal^s 554 



75. Distichopora gracilis Dana 554 



76. Species of Allopora 554 



77-80. Branchinecta gigas, new species 562 



TEXT FIGURES 



Faga 



1. Brachycyrtus pretiosus, new species: Head and propodeum___ ._ 19 



2. Brachycyrtus convergens, new species: Head and propodeum 21 



3. Brachycyrtus oculatns, new species: Head and propodeum 22 



4. Brachycyrtus nawaii {Ashme&d) : Head and propodeum _ 23 



5. Ricuzenius nudithorax, new species: Holotype 28 



6. Atopocottns tribranchius, new genus and species: Holotype 31 



7. Phasmatocottus ctenopterygius, new genus and species 34 



8. Stlegicottns xenogrammns, new genus and species: Holotype 37 



vn 



