904 PEOCEEDINGS OF THE NATIONAL MUSEUM. 



*MUTELA NILOTICA Sowerby. 



* Iridina nilotica^owE'RBY, Zool. Jourual, I, 1835, p. 53," pi. ii. — *?Cailliauo, 

 Yoy. a Meroe, 1826, pi. lx, fig. 12. — * Audouin, Savigny, Icon. Moll. Egypt, 

 1827, pi. VII, fig. 2.— "Crouch, 111. lut. Lam., 1827, p. 17, pi. x, fig. 1.— 

 *Lea, Syu., 1836, p. 56.—* Hanley, Biv. Shells, 1843, p. 225.— *Catlow and 

 Reeve, Concli. Nom., 1845, p. 68.— *Deshayes, Tr. Ele., II, 1853, p. 219, pi. 

 XVII, figs. 6, 7.— *Chenlt, Man., 1859, II, p. 148, fig. 727.— * Sowerby, 

 Conch. Icon., XVI, 1868, pi. ii, fig. 4. 



* Platiris {Spatha) nilotica Lea, Syn., 1838, p. 33. 



* Mytilus niloticus Wood, Ind. Test. Eev., 1856, p. 207, pi. ii, sup. fig. 1. 



"" Mutela nilotica H. and A. Adams, Gen. Eec. Moll., II, 1857, p. 506. — * Jickeli, 



Faun., 1874, p. 259.— * PiETEL, Conch. Sam., Ill, 1890, p. 187.— * Wester- 



LUND, Faun. Pal., II, Pt. 7, 1890, p. 313. 



* "^ Mutela joiiherti BOVRGVIGNAT, Un. et Jr., 1886, p. 28; *Icon. Mai., 1888, pi. 



XXIII, fig. 1. — 'P.ETEL, Conch. Sam., Ill, 1890, p. 187. 

 * '^MutelavisseriBoVRGViGSATjJJn. et Ir., 1886, p. 31. — * P/Etel, Couch. [Sam., 



Ill, 1890, p. 187. 

 *Mutela vysseri Bourguignat, Icon. Mai., 1888, pi. xxiii, fig. 3. 



MUTELA NILOTICA var. EMINI von Martens. 



* Mutela nilotica var. enmii VON Martens, Besch., 1897, p. 253. 

 Tropical Africa. 



t MUTELA ANGUSTATA Sowerby. 



* Iridina angustata Sowerby, Conch. Icoij., XVI, 1868, pi. ii, fig 5. 



* Mutela angustata Jickeli, Faun. N. 0. Af., 1874, p. 268. — ""P^etel, Conch. Sam., 



Ill, 1890, p. 187.—" Westerlund, Faun. Pal., IL, pi. 7, 1890, p. 312. 



Tropical Africa. 



t MUTELA ALATA Lea. 



*Spatha alata Lea, Pr. Ac. N. Sci. Phila., 1864, p. 109; * Jl. Ac. N. Sci. Phila., 1866, 

 p. 35, pi. XII, fig. 31; *Ol)s.,XI, 1867, p. 39, pi. xii, fig. 31.— * P.etel, Conch. 

 Sam., Ill, 1890, p. 188. 



* Platiris {Spatlia) alata Lea, Syn., 1870, p. 89. 



"" Mutela alata Clessin, Conch. Cab. Ano., 1876, p. 196, pi. lxii, figs. 7, 8. — *Ancey, 



Bull. See. Zool. de Fr., 1894, p. 232.—-^ von Martens, Besch., 1897, p. 253. 

 " Burtonia alata Ancey, Bull. Soc. Mai. Fr., VI, 1889, p. 38. 



Lake Nyassa. 



MUTELA SIMPSONI Ancey. 



"" Mutela simpsoni Ancey, Ball. Soc. Zool. de Fr., VII, 18J4, p. 233, fig. 8. 

 "Mutela alata var. simpsoni vox Martens, Besch., 1897, p. 253. 



Shire and Karonga rivers, near Lake Nyassa. 



MUTELA BOURGUIGNATI Bourguignat. ^ 



"" Mutela hourguignatl Bourguignat, Esp. Ouk., 1885, p. 8. — * Smith, Ann. and 

 Mag., X, 1892, p. 128, pi. xii, fig. 16.— "von Martens, Besch., 1897, p. 255. 



Lake Nyanza. 



1 Credited to Ancey, in lilt. 



