SMITH : MOLLUSCA OF LAKE TANGANriKA. 89 



Nassopsis ffrandis, Martel & Dautzenberg, p. 167. 

 Nassopsis nassa, Moore : i, pi. xxiii, lig. 2 ; ii, pp. 250-6, figs. 33-8, 

 and fig. on p. 347. 



Lavigeria diademata, Bourguignat. 



Lavigeria diademata, Bourguignat: ii, pi. xiii, figs. 15-17 ; iii, p. 179. 



Paramelania {Lavigeria) diademata, Martens : p. 207. 



? JVassopsis grandis, var. diademata, Martel & Dautzenberg: p. 168, 



pi. viii, fig. 6. 

 ? JYassopsis grandis, var. Jouberti: iid., p. 169, pi. viii, fig. 7. 



Lavigeria corojstata, Bourguignat. 



Lavigeria coronata, Bourguignat: ii, pi. xiii, figs. 13, 14; iii, p. 180; 



Nicolas, C.R. Assoc. Fran^aise, 1898, 2^ partie, p. 517, fig. 6 



(1899). 

 Paramelania {Lavigeria) coronata. Martens : p. 207. 



Some specimens in the Museum diSer slightly from the figure given 

 by Bourguignat in having the upper part of the whorls rather less 

 concave, the aperture a little shorter, and not so acuminate at the 

 upper part of the peristome. 



Lavigeria callista, Bourguignat. 



Lavigeria callista, Bourguignat: ii, pi. xiv, fig. 2; iii, p. 183. 



Lavigeria pereximia, Bourguignat. 



Lavigeria pereximia, Bourguignat: ii, pi. xiv, fig. 3; iii, p. 187. 



Lavigeria Jouberti, Bourguignat'. 



Lavigeria Joxiberti, Bourguignat: ii, pi. xiv, fig. 4; iii, p. 185. 

 Nassopsis grandis, var. Jouberti: Martel & Dautzenberg, p. 169, 

 pi. viii, fig. 7. 



Lavigeria Euellaniana, Bourguignat. 



Lavigeria Ruellaniana, Bourguignat: ii, pi. xiv, figs. 5, 6; iii, p. 190. 



Lavigeria combsa, Bourguignat. 



Lavigeria combsa, Bourguignat: ii, pi. xiv, fig. 7; iii, p. 189. 



E.ANDABELIA. 



Randabelia, Bourguignat: ii, p. 31, pi. xiii, figs. 1-4; iii, p. 170; 

 Martens, p. 207, as a subgenus of Paramelania. 

 This genus appears to be very closely related to Lavigeria, and it 

 seems possible that the two species of it may be the young state of 

 that genus. 



Randabelia catoxia, Bourguignat. 



Randabelia catoxia, Bourguignat: ii, pi. xiii, figs. 1, 2; iii, p. 171. 

 Eandabelia Hamtana, Bourguignat. 



Paramelania Hamyana, Bourguignat : i, p. 7 1 . 



Randabelia Hamyana, Boiu'guignat : ii, pi. xiii, figs. 3, 4 ; iii, p. 173. 



Paramelania {Randabelia) Hamyania, Martens : p. 207. 



