1028 
33. Otopoma (Rochebrunia) lineatum Pfeiffer, 
(Taf. 45. Fig. 3. 4.) 
C. testa umbilicata, globoso-conica, tenuiuscula, laevigata, diaphana, nitidula, fulva, lineis 
castaneis, alternis subtilioribus, subinterruptis picta; spira turbinata, acutiuscula; anfractibus 
5V a convexis, ultimo rotundato, infra peripheriam fascia latiore ornato, in umbilico angusto, 
vix pervio spiraliter confertim sulcato; apertura vix obliqua, subangulato-circulari, peristomate 
simplice, recto, albo, margmibus approximatis, callo subemarginato junctis. — Operculum 
- ? — L. Pfr. 
Alt. 15, diam. 13 mm. 
Cyclostoma lineatum L. Pfeiffer, in: Proc. zool. Soc. London 1851 p. 65; 
Martini-Chemnitz, Conch. Cab. ed. II p. 350 t. 45 fig. 34. — 
Monogr. Pneum. vol. I p. 222. — Reeve Conchol. icon. t. 8 sp. 
46. — Smith, in: Pr. Z. Soc. London 1881 p. 278 (insulare var.); 
ibid. 1882 p. 378. — Bourguignat Moll. Afrique 6quatonale 
p. 151. — Martens, Moll. D. 0. Afrika p. 5. — (Ligatella) Kobelt 
& Moellendorff, Catal. Pneum., in: Nachrbl. D. malac. Ges. 1898 
p. 178 Sep. p. 82. 
Aufenthalt an der Ostküste des tropischen Afrika, besonders auf der Insel 
Mombasa, am Kap Gfassi und am Ras Kinbidji südlich von Dar es Salam, auch 
gemein bei Kondon in Usagara (Bgt.). Martens nennt dagegen den Fundort unsicher, 
bemerkt aber: „Scheint mir dadurch, dass Pfeiffer gar keine Spiralskulptur angibt, 
verschieden (vor der Gruppe letourneuxi). 
Smith nennt das Tal von Marohogo bei Monjonga in Nordwest Madagaskar. 
Smith 1882 bemerkt über diese immer noch unsichere Art : „The specimen from 
the above locality is exactly similar in all respects to the type of this species, which 
at one time I considered a variety of 0. insulare. As the localities prove to be 
different, I now think it better to keep the two forms separate. Some small varieties 
of C. insulare from the country between lake Nyassa and the east Coast of Africa, 
referred to by me in the „Proceedings“ approach very closely to the present species 
None of them, howewer, is absolute identical, the umbilicus being a little more con- 
tracted, the spire a trifle lower, and the liration around and within the umbilicus 
decidedly coarser. In 0. lineatum this is unusually fine. Pfeiffer described the Shell 
as smooth; but this is not correct. To the unaided eye such appears to be the 
case; but on making use of a lens the fine brown lines are seen to be elevated (lirae), 
