SMITH : MOLLUSCA OF LAKE TANGANYIKA. 95 



Baizea leucoraphe (Ancey). 



Ponsonhya leucoraphe, Ancey : Bull. Soc. mal. France, 1890, vol. vii, 

 p. 347 ; Martens, p. 296. 

 This species closely resembles B. Giraudi, but is not oblique in 

 growth, and consequently the aperture is more upright. 



GiRATJDIA. 



Giraudia, Bourguignat: i, p. 61; ii, p. 28, pi. xi, figs. 16-24; iii, 



p. 148 ; Martens, p. 206. 

 Reymondia, Bourguignat: i, p. 64; ii, p. 28, pi. xi, figs. 1-15; iii, 

 p. 152; Martens, p. 206. 

 At pi'esent I fail to perceive any characters which are sufficient to 

 separate Rei/mondia from Giraudia. As the word Raymondia., which 

 ' is very similar to Reymondia, had previously been employed in insects, 

 it will be convenient to apply the name Giraudia to these shells. 

 Messrs. Martel & Dautzenberg have also united these two genera. 



Giraudia pr^claea, Bourguignat. 



Giraudia prcBclara, Bourguignat: i, p. 62; ii, pi. xi, figs. 16-18; iii, 



p. 149. 

 Reymondia prceclara, Martel & Dautzenberg: p. 176. 



Giraudia Grandidieriana, Bourguignat. 



Giraudia Grandidieriana, Bourguignat : i, p. 63 ; ii, pi. xi, figs. 19-21 ; 

 iii, p. 150. 

 This species appears to differ very slightly from G.prmclara ; indeed, 

 it seems doubtful also whether G. Lavigeriana is anything more than 

 a small slender variety. 



Giraudia Lavigeriana, Bourguignat. 



Giraudia Lavigeriana, Bourguignat: ii, pi. xi, figs. 22-24 ; iii, p. 151. 



Giraudia quintana (Mabille). 



Assiminea quintana, Mabille: Bull. Soc. Philom. Paris, 1901, vol. iii, 

 p. 56. 

 This and the following species apparently belong to the genus 

 Giraudia, and may even be synonymous with some of the species 

 described previously. 



Giraudia Foai (Mabille). 



Assiminea Foai, Mabille : Bull. Soc. Philom. Paris, 1901, vol. iii, p. 56. 



Giraudia Horei (Smith). 



Melania ( — ?) Horei, Smith : iii, p. 427 ; ii, p. 292 ; pi. xxxiv, fig. 27 ; 



Crosse, p. 115; Pelseneer, p. 108. 

 Reymondia Horei, Bourguignat : i, p. 65 ; ii, pi. xi, figs. 1,2; iii, p. 153 ; 



Martel & Dautzenberg, p. 175, pi. viii, figs. 20-1; Martens, 



p. 206. 



