258 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



Plate 5. 



Fig. 1. Rissoina calia, new species, type, length 6.7 mm., p. 130. 



2. Alvania ima, new species, type, length 2.3 mm., p. 129. 



3. Alvanianemo, new species, type, length 1.8 mm., p. 127. 



4. Triphoris capensis, new species, type, length 5.1 mm., p. 105. 



5. Alvania farquhari Smith, p. 128. 



6. Seila alfredensis, new species, cotype, length 10 mm., p. 113. 



7. Alabina alfredensis, new species, type, length 3.2 mm., p. 121. 



8. Turritella stimpsoni, new species, type, length 20.5 mm., p. 118. 



9. Cerithiopsis (Cerithiopsis) alfredensis, new species, type, length 5 mm., p. 109. 



10. Rissoina (Phosinella) pura Gould, type, length 5.8 mm., p. 131. 



11. Triphoris africana, new species, type, length 5. mm., p. 103. 



Plate 6. 



Fig. 1. Diala africana, new species, type, length 4.8 mm., p. 122. 



2. Dixda almo, new species, type, length 2mm., p. 123. 



3. Microsetia helga, new species, type, length 2.7 mm., p. 133. 



4. Microsetia gisna, new species, type, length 2 mm., p. 132. 



5. Amphithalamus turtoni, new species, type, length 1 mm., p. 126. 



6. Sabanaea thalia, new species, type, length 1.7 mm., p. 126. 



7. Sabanaea pyrrha, new species, type, length 1.3 mm., p. 125. 



8. Microsetia halia, new species, type, length 2.1 mm., p. 132. 



9. Assiminea capensis, new species, type, length 6 mm., p. 135. 

 10. Diala capensis, new species, type, length 2.5 mm., p. 123. 



Plate 7. 



Fig. 1. Mangilia nisga, new species, type, length 3.1 mm., p. 25. 



2. Mangilia helga, new species, type, length 3 mm., p. 26. 



3. Mangilia gisna, new species, type, length 3.1 mm., p. 24. 



4. Drillia signa, new species, type, length 14 mm., p. 21. 



5. Mangilia benjamini, new species, type, length 15.3 mm., p. 26. 



6. Mangilia amplexa Gould, type, length 8 mm., p. 30. 



7. Mangilia herilda, new species, type, length 7.4 mm., p. 28. 



8. Clionella sybarilica, new species, type, length 20.5 mm., p. 15. 



Plate 8. 



Fig. 1. Eugyrina gemnifera lepta, new subspecies (front), type, length 84.2 mm., p. 93. 



2. Clavatula helena, new species, type, length 28 mm., p. 20. 



3. Daphnella alfredensis, new species, type, length 9.6 mm., p. 32. 



4. Eugyrina gemnifera lepta, new subspecies (back), type, length 84.2 mm., p. 93. 



Plate 9. 



Fig. 1. Eugyrina gemnifera Euthyme, length 91 mm. (front), p. 93. 



2. Epitonium africanum, new species, type, length 31 mm., p. 62. 



3. Turbonilla (Pyrgolampros) angea, new species, type, length 5 mm., p. 77. 



4. Eugyrina gemnifera Euthyme, length 91 mm. (back), p. 93. 



Plate 10. 



Fig. 1. Amphiperas smithi, new species, type, length 19.5 mm. (front), p. 96. 



2. Phasianella africana, new species, type, length 3.5 mm., p. 145. 



3. Amphiperas smithi, new species, type, length 19.5 mm. (back), p. 96. 



4. Marginella alfredensis, new species, type, length 2.5 mm., p. 41. 



