The Non-Marine Mollusca of Portuguese East Africa. 207 



Tropidophora (Ligatella) zanguebarica (Petit), 1850. 



1850. Cyclostoma zanguebaricum Petit., J. de C. i, p. 53, pi. 3, fig. 5. 

 D.F. 



Hab. Mozambique (Gibbons ; cum mut. albina, Frey). 



Family AMPULLAKIIDAE. 



Genus Ampullaria Lamarck, 1799. 



Ampullaria largillierti Phil., 1848. 



1848. Ampullaria largillierti Phil., Zeitschr. f. Malak. v, p. 192. D. 



1857. „ wernei Phil., var., Mts., Mai. Blatt. iv, p. 187. N. 



1879. „ largillierti Phil., Mts., Monatsb. Ak. Wiss. Berlin, 



p. 733. L. 



Hab. Mozambique. Querimba I. (Peters). 



I have not seen Peters' shells, which von Martens first considered to be 

 a variety of the widely difiused African wernei and subsequently attributed 

 to largillierti, a Madagascan species. 



Genus Lanistes de Montfort, 1810. 

 Lanistes ovum Ptrs., 1845. 



1851, 52. Ampullaria ovum Ptrs., Phil., Conch. Cab., p. 22, pi. 6, 

 fig. 2. D.F. 



1866. Lanistes ellipticus Mts., Novit. Conch, ii, p. 294, pi. 70, figs. 

 9-10. D.F. 



1866. Lanistes ovum, var. elafior Mts., ibid., p. 291, pi. 70, figs. 7, 8. D.F. 

 ,, ,, olivaceus, var. ambiguus Mts., ibid., p. 292, pi. 71, figs. 



3-4. D.F. 



1877. Lanistes affinis Smith, P.Z.S., p. 716, pi. 74, fig. 7. D.F. 



solidus Smith, P.Z.S., p. 716, pi. 74, figs. 10-11. D.F. 



1886. „ zambesianus Furtado, J. de C. xxxiv, p. 148, pi. 7, fig. 1. 

 D.F. 



1886. Lanistes ellipticus, var. trapeziformis Furt., ibid., p. 150. D. 



Hab. Mozambique coast (Frey) ; Mopera, R. Quaqua ; Quilimane 

 (Stuhlmann). 



L. Marques. Tette (type, Peters ; Ivens and Capello) ; Itschongove, 

 Delagoa Bay (Schenck) ; L. Pavi ; L. Mhandlen ; Rikatla (Junod) ; 

 Wanetsi R., Magude Dist. (Bell Marley) ; Beira (Cawston ; Connolly) ; 

 Mtisherra R. Valley (Cressy). 



In the case of this and the next species I have followed Sowerby's 

 synonymy,* with which I fully agree. 



* Proc. Mai. Soc. xii, 1916, pp. 67-68. 



