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 

 51/j convexis, ultimo rotundato, infra peripheriam fascia latiore ornato, in umbilico angusto, 

 vix pervio spiraliter confertim sulcato ; apertura vix obliqua, subangulato-circulari, peristomate 

 ßimplice, recto, albo, marginibus 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. Gab. 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 equatonale 

 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 Gassi 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 locaüties 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 Ooast of Africa, 

 referred to by me in the „Proceedings" approach very closely to the present species 

 None of them, howewer, is absolute identical, the umbihcus being a little more con- 

 tracted, the spire a trifte 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 Unes are seen to be elevated (lirae), 



