XII LIS T OF ILL US TRA TIONS. 



Page. 

 Descriptions of Some North American Sawfly Larvae. 



By William Middleton. 



1. Periclista hicoriae Rohwer. a, maxilla; b, third urite 3 



2. Periclista similaris Rohwer. a, maxilla; b, third urite 5 



3. Macrophya epinota Say. a, maxilla; b, antenna; c, third urite 7 



4. Pseudosiobla lloridana Ashmead. a, maxilla; h, third urite 12 



5. Pteronidea amelanchieridis Rohwer. Maxilla 17 



6. Pteronidea ivinnanae Rohwer. Maxilla 18 



7. Pteronidea mendicana Rohwer. a, third urite; b, antenna 20 



8. Acordulecera fovea fa Rohwer. a, maxilla; b, antenna; c, third urite 29 



Studies on the Cyclostomatous Bryozoa. 

 By Ferdinand Canu and Ray S. Bassler. 



1. Oncousoecia accumulata, new species 7 



2. Macroeda lamellosa Michelin, 1 846 9 



3. Brachysoeda convexa, new species 23 



4. Bisidmonea tetragona Lamouroux 25 



5. Cavaria pustulosa Hagenow, 1851 33 



6. Cea (Filicea) regnlaris D'Orbigny, 1852 36 



7. Laterocea simplex D'Orbigny, 1852 38 



8. Stathmepora gabbiana, Ulrich and Bassler, 1907 40 



9. Tennysonia stellata Busk, 1867 51 



10. Cyrtopora elegans Hagenow, 1851 54 



11. Oscidipora repens Hagenow, 1851 58 



12. Truncatula pinnata Roemer, 1840 65 



13. Truncatula tetragona Uichelin, 1846, and T. subpinnata D'Orbigny, 1854. . 67 



14. Truncatula vendocinensis, new species 70 



15. Discocytis eudesi Michelin, 1844 71 



16. Semicytis disparilis D'Orbigny, 1854 75 



17. Desmepora semicylindrica Roemer, 1840, and D. rugosa D'Orl)igny, 1854 ... 78 



18. Genus Meliceritites Roemer, 1840 86 



19. Cyclodtes primogenitum, new species 89 



20. Ceriocava corymbosa Lamouroux, 1821 91 



21. Spiroclausa spiralis Goldfuss, 1827 93 



22. Spiroclmisa spiralis Goldfuss, 1827 93 



23. Ripisoecia conifcra Lamouroux, 1821 95 



24. Grammecava dumetosa Defrance, 1824 96 



25. Haplooeda strarninea Phillips, 1829 98 



26. Ldosoeda constantii D'Orbigny, 1850 99 



27. Ditaxia anomalopora Goldfuss, 1827 102 



28. Ditaxia parvipora, new species 104 



29. Chilopora guernoni Haime, 1854 106 



30. Chilopora cretacea, new species 107 



31. Tretocycloeda dichotoma Reuss, 1847 109 



32. Alveolaria semiovata Busk, 1859 HI 



33. Parascosoecia dcatrix Gregory, 1899 114 



34. Genus CVmrm D'Orbigny, 1852 117 



35. Grammascosoecia dichotoma Goldfuss, 1827 120 



36. Grammascosoecia porosa, new species 122 



37. Genus Polyascosoeda Canu and Bassler, 1920 125 



38. Genus Reteporidca D'Orbigny, 1852 130 



39. Sulcocava cristata D'Orbigny, 1854 135 



40. Filicrisina vertidllata D'Orbigny, 1852 136 



