266 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



Plate 46. 



Fig. 1. Philobrya africana, new species, type, length 5 mm. (exterior), p. 185. 



2. Philobrya africana, new species (interior), p. 185. 



3. Circe alfredensis, new species, type, length 16 mm. (exterior), p. 203. 



4. Circe alfredensis, new species (interior), p. 203. 



5. Erycina subradiata Carpenter, type, length 3.6 mm. (exterior), p. 197. 



6. Erycina subradiata Carpenter (interior), p. 197. 



7. Tellina albinella alfredensis, new subspecies, type, length 46.8 mm., p. 205. 



8. Tellina albinella alfredensis, new subspecies, p. 205. 



9. Barbatia alfredensis, new species, type, length 34 mm. (exterior), p. 182. 

 10. Barbatia alfredensis, new species (interior), p. 182. 



Plate 47. 



Fig. 1. Diplodonla almo, new species, -type, length 3.5 mm., p. 195. 



2. Rochefortia helena, new species, type, length 1.5 mm., p. 201. 



3. Cuna concentrica, new species, type, length 1.2 mm., p. 191. 



4. Rochefortia convexa Gould, young cotype, p. 199. 



5. Diplodonta africana, new species, type, length 2.2 mm., p. 195. 



6. Rochefortia milda, new species, type, length 2.5 mm., p. 200. 



Plate 48. 



Fig. 1. Condylocardia io, new species, type, length 2.6 mm., p. 193. 



2. Rochefortiafarma, new species, type, length 2.5 mm., p. 201. 



3. Venericardia africana, new species, type, altitude 3.1 mm., p. 192. 



4. Carditopsis alfredensis, new species, type, altitxide 2 mm., p. 193. 



5. Felaniella alfredensis, new species, type, length 1.9 mm., p. 195. 



Plate 49. 



Fig. 1. Crenella alfredensis, new species, p. 189. 



2. Erycina subradiata Carpenter, p. 197. 



3. Theora alfredensis, new species, p. 206. 



4. Scintilla turtoni, new species, p. 196. 



5. Scintilla turtoni, new species, p. 196. 



6. Erycina firmata Gould, p. 196. 



7. Erycina firmata Gould, p. 196. 



8. A bra africana, new species, p. 206. 

 9: Abra africana, new species, p. 206. 



Plate 50. 



Fig. 1. Erycina alfredensis, new species, p. 197. 



2. Erycina alfredensis, new species, p. 197. 



3. Erycina ima, new species, p. 197. 



4. Erycina ima, new species, p. 197. 



5. Erycina carifa, new species, p. 197. 



6. Erycina carifa, new species, p. 197. 



7. Erycina rifaca, new species, p. 198. 



8. Erycina rifaca, new species, p. 198. 



9. Bornia fortidentata Smith, p. 198. 

 10. Bornia fortidentata Smith, p. 198. 



