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Show 1873.] REV. J. T. GULICK ON ACHATINELLINcE. 89 EXPLANATION OF PLATES. PLATE IX. Eig. 1. Achatinella concolor, Sm., p. 75. 2,2 a. fuscolineata. Sm., p. 75. 3. consanguinea, Sm., p. 73. 4. lehuiensis, Sm., p. 76. 5. longispira, Sm., p. 73. 6. tricolor, Sm., p. 76. 7. augusta, Sm., p. 74. 8. bellula, Sm., p. 77. 9. fuscozona, Sm., p. 76. 10. rhodorrhaphe, Sm., p. 74. 11. pygmcea, Sm., p. 75. 12. ligata, var., Sm., p. 77- Fig. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. Achatinella ligata, Sm., p. 76. diluta, Sm., p. 74. Bulimella fuscobasis, Sm., p. 77. Apex leucophceus, Gk., p. 82. gulickii, Sm., p. 78. versicolor, Gk., p. 80. innotabilis, Sm., p. 78. tumefactus, Gk., p. 82. albofasciatus, Sm., p. 78. neglectus, Sm., p. 78. coniformis, Gk., p. 80. PLATE X. Fig 1, la. Apex flavidus, Gk., p. 80. 2. Apex leucorrhaphe, Gk., p. 79 - tuberans, Gk., p. 81. - lilaceus, Gk., p. 79. - polymorpha, Gk., p. 81. leucozonus, Gk., p. 83. 3. 4. 5. 6. 7. 8. - turbiniformis, Gk., p. 81. - albospira, Gk., p. 77. 9. Amastra nigrolabris, Sm., p. 85. 10. conicospira, Sm., p. 86. 11. conifera, Sm., p. 85. 12. rubida, Gk., p. 84. 13. peasei, Sm., p. 86. 14. - _ decorticata, Gk., p. 84. ?ig. 15. Amastra elliptica, Gk., p. 83. 16. tenuilahris, Gk., p. 83. 17. rustica, Gk., p. 84. 18. malleata, Sm., p. 85. 19. nucula, Sm., p. 85. 20. amicta, Sm., p. 86. 21. Auriculella uniplicata, Pse., p. 88. 22. crassula, Sm., p. 88. 23. brunnea, Sm., p. 88. 24. patula, Sm., p. 88. 25. diaphana, Sm., p. 87. 26. perpusilla, Sm., p. 87. 27. tenuis, Sm., p. 87. January 21, 1873. Prof. Newton, F.R.S., V.P., in the Chair. Dr. Gunther exhibited and made remarks upon an Egyptian skull which had been discovered in the tombs of Sakhara, near Memphis, in Egypt, by Mr. John Dickson, in March 1872. The following papers were read :- 1. On the Classification of the Achatinellince. By the Rev. J O H N T. GULICK. [Eeceived November 19, 1872.] W h e n Dr. Pfeiffer first divided the genus Achatinella he was not altogether successful in separating the species into natural groups. Much disorder has since been removed by the recognition of the eroup Amastra by H . & A. Adams, and by Von Martens having separated from Achatinella and Bulimella the quite distinct group for which he has proposed the name Apex. M r Pease* has proposed to call the same group by the name Helicter, which he ascribes to Ferussac He was mistaken, how- * See Proc. Zool. Soc. 1869, p. 644. |