200 Bulletin American Museum of Natural History [Vol. LIII 
quite moderately thickened, and it is distinctly, though rather incon- 
spicuously subtruncate at the base. The notch corresponds with the 
termination of a curved cord bordering the columella outside, and evi- 
dently homologous with the circum-umbilical carina of some Lanistes. 
’ The operculum of L. farleri is somewhat similar to that of L. 
grauert, but the concentric wrinkles of the scar are coarser and fewer. 
We believe L. farlerz to be specifically distinct. 
The following is a list of the species which have been described in 
this group. Some of these have been regarded as synonyms by E. v. 
Martens and by Germain'; but, having only. seen specimens of L. 
farleri and L. grauert, we are not inclined to adopt their conclusions at . 
present. 
Lanistes bourguignatt (Grandidier). See p. 202. 
Lanistes charmetanti (Grandidier) = Leroya charmetanti GRANDIDIER, 1887, Bull. 
‘Soc. Malacol. France, IV, p. 193. Bouraurenat, 1889, ‘Moll.’ Afrique Equator.,’ 
p. 180, Pl. vu, figs. 21-22. East Africa, without more definite locality (probably 
Vuami or Kingani River). : 
Lanistes farlert CRavEN, 1880, Proc. Zodl. Soc. London, p. 219, Pl. xx11, fig. 7. 
Magila (Usambara), Tanganyika Territory. 
Lanistes farlert var. olivata Grrmatn, 1916, Bull. Mus. Hist. Nat. Paris, pp. 
323-326. Kwiro (Mahenge), Tanganyika Territory. 
Lanistes graueri J. Thiele. See below. 
Lanistes recki Dimrricu, 1923, Centralbl. Mineral., Geol. u. Palaont., p. 317, 
fig. 2. Fossil in the Pleistocene (?), region of the saline Gottorp, near Rutschugi 
(Malagarazi River), Tanganyika Territory. 
Lanistes sculptus E. v. Marrens, 1887, Sitz. Ber. Ges. Naturf. Fr. Berlin, p. 97. 
Usambara, Tanganyika Territory. The typical specimens were united by E. v.. 
Martens (1897, ‘Deutsch Ost Afr., IV, Beschalte Weichth.,’ p. 171) with L. farleri 
Craven, and this was probably right. Kobelt (1912, ‘Syst. Conch. Cab., n. F., I, 
Ampullariide,’ p. 34, Pl. xxx, figs. 5-6), however, figures as Meladomus farleri a 
specimen from Umbugwe, received from the Berlin Museum, which is evidently not 
Craven’s species. 
Lanistes stuhlmanni E. v. Martens, 1897, ‘Deutsch Ost Afr., IV, Beschalte 
Weichth.,’ p. 171, Pl. v1, fig. 37. Daressalaam, Tanganyika Territory. 
Lanistes (Leroya) graueri J. Thiele 
7 Plate XIV, Figures 6, 7, 8 
Lanistes grauert J. Toreie, 1911, ‘Wiss. Ergebn. D. Z. Afr. Exp. (1907-08),’ 
II, p. 210, Pl. v, fig. 50. | | 
_ Meladomus graueri Thiele. Koxsrnt, 1912, in Martini and Chemnitz, ‘Syst. 
Conch. Cab., n. F., I, Ampullariide,’ p. 38, Pl. xxv1, figs. 8-9. 
Lanistes (Leroya) grauert Thiele. GrERMaIN, 1916, Bull. Mus. Hist. Nat. Paris, 
pp. 323 and 328. 
Sp RBA AGED 88 SE ih dy de ge Sc cee ee aE 
‘Germain, L. 1916. ‘Sur le genre Leroya Bourguignat.’ Bull. Mus. Hist. Nat. Paris, pp. 317-329, 
