348 



DESCKIPTIONS OF NEW SPECIES OF LAND SHELLS FKOMJ 



AFRICA. 



]iy GmSAK II. BoKXi'GKR. 



Read 9th May, 1913. 



PLATES XV-XVII. 

 1 HAVE lately received the following new species and sub-spe(^ 

 among a large number of well-known African land shells. Most 

 them were collected in German East Africa, two in Togo, one 

 Southern Cameroons, and one in Southern Abyssinia. I recei\( 

 them through the kindness of Mr. P. Hesse, Venice (No. 6), Mr. 

 Naegele, Waltersweier, near Orenburg (Nos. 3, 4, 5, 8, 9, 10, 12, \\ 

 Mr. H. liolle, Berlin (No. 7), and Mr. M. Stahlberg, Schwej 

 (Nos. 1, 2, 11). I have to thank Dr. L. Germain, of Paris, 

 having kindly examined Nos. 1, 2, 6, 9, 11 ; also Mr. E. A. Smii 

 Avho informed me that No. 1 Avas not in the British Museum. T| 

 types are in my collection, excepting that of Ligatella Letourneu. 

 Bourg., var. intermedia, nov. var., which has been presented to the 

 Senckenberg Museum, Frankfurt (M.). 



1. Tbochonanina Germaini, n.sp. PI. XV, Figs. 1-3. 



Testa perforata, applanata, distinctissime carinata, linea impressa 

 indistinctissima supra et distincta sub carinam, supra corneo-fusca, 

 infra cornea et nitens, supra sericea, propter costulas angustas, basim 

 versus evanescentes. Anfractus GJ-, plani, regulariter accrescentes, 

 sutura plana separati ; ultimus non descendens. Apertura angulato- 

 ovata, obliqua ; peristoma simplex, acutum, mai'ginibus callo tenui 

 junctis. Alt. 10 mm. ; diara. maj. 24'5, min. 22 mm.; apertura, 

 alt. 12, lat. 9 mm. 



Hah. — Harrar, Southern Abyssinia. 



Shell perforate, flattened, very sharply keeled, the keel bordered 

 above by a very indistinct line, and below by a distinct impressed 

 line ; corneous brown above and corneous below, glossj^ below, above 

 with a silky lustre, caused by narrow, fine riblets, which become 

 very indistinct on the underside. Whorls 6A, flat, regularly increasing 

 in size, separated by a flat suture ; the last whorl not desceiuling in 

 front ; apertui'e angidate-ovate, oblique ; peristome simple, acute, 

 the margins united by a very thin callus. 



This pretty new TVot^Aowrtwmrt is related to T. Nyassana, E. A. Smith, 

 but is easily distinguished by its flatter shape. I received this species 

 from Ml'. M. Stahlberg, Schwerin. I have the honour of connecting 

 Avith it the name of Dr. L. Germain, Assistant of the Museum 

 d'Histoire naturelle at Paris. 



2. TuAPsiA CALAMiCHKOA, Jon., var. DEPKKssA, u.var. 

 PI. XV, Figs. 4-6. 

 Diflert a typo spira depressa. Alt. 7 mm. ; diam. maj. 14, min. 

 .12 mm.; apertura, alt. 8, lat. 6 mm. 

 Hab. — Atakpame, Central Togo. 



