330 CLAUSILIID^E. 



291. Clausilia tuba, Hanky. 



Clausilia tuba, Hanley, A. M. N. H. ser. 4, i, 1868, p. 343; 



Hanley & Theobald, Conch. Ind. 1870, pi. 24, fig. 9; Sowerby, 



Conch. Icon, xx, 1875, Clausilia, pi. 8, fig. 72 ; Pfeiffer, Mon. 



Helic. Viv. viii, 1877, p. 540 ; Boettger, Ber. Offenbacher Ver. 



Naturw. 1878, Mitt. p. 80 (inc. sed.). 

 Clausilia (Phaedusa (Hemiphaedusa}} tuba, Pfeiffer & Clessin, 



Nomencl. Helic. Viv. 1881, p. 394. ' 

 Clausilia (Garnieria) tuba, Mollendorff, Jahrb. Dents. Malak. Ges. 



xiii, 1886, p. 207 ; ibid., Nachr. Deuts. Malak. Ges. xxx, 1898, 



p. 77. 



Original description. "Testa (pro genere) magna, sub- 

 cylindraceo-fusiformis, apicem versus cylindracea, albido-cornea, 

 unicolor, tennis, subdiaphana, hand rimata, lineis elevatis vix 

 continuis et (prsesertim in anfractu ultimo, ubi remotiores fiunt) 

 oblique corrugata. Anfractibus 10-12, sutura profunda et 

 minime crenata divisi ; apicales unice convexi, subsequales ; 

 cseteri convexi, et satis rapide crescentes ; penultimus major, 

 altior ; ultimus curvatus, verticaliter descendens, infra suturam 



Fig. 115. Clausilia tuba. 



submargiuatam subcoarctatus, denique insigniter dilatatus, basi 

 rotundata nequaquam cristatus. Apertura permagna, soluta, 

 porrecta, subcordato-rotundata, undique patentissima. Peristoma 

 continuum, late expansum ; lamella supera conspicua, angusta, 

 arcuatim subverticalis ; lamella infera adjacens, obliqua, magisque 

 profunda ; plica subcolumellaris parvula, verticalis ; plica palatalis 

 (si sit ulla) labrum baud attingens ; lunella opacitate conspicua. 



" Long. 1J poll. [=31-5 mm.]/' (Hanley.) 



Hob. Burma : Upper Salween Valley, Shan States (Feclderi). 



Apparently a rare species. It resembles an exaggerated C. 

 masoni with wing-like margins of the peristome, but the sub- 

 columellar fold does not reach so far and is placed lower on the 

 columellar margin. The lunella is almost united to the palatal 

 plica above and to the subcolumellar fold near the inner edge 

 of the peristome below. Hanley stated that it most closely re- 

 sembles the American C. epistomium, not a very happy comparison. 

 It certainly has much closer affinity with C. masoni, while it also 



