- 37 — 



Arifr. 7, superi convexi, inferi supra planati et angulati, 

 carinis spiralibus plus minusve distinctis ciiicti, ultinius 

 acute carinatus, carina versus aperturam distirictiore et 

 subtuberculata, utrin{[ue convexus, carinulis tribus superior- 

 bus, prima et secunda magis approximatls, duabus inferio- 

 ribus minoribus cinclus, antice desceiidens, basi irregulariter 

 costato-sulcatus, spirae altitudinem superans. Apert. parum 

 obliqua, basi recedens, ovata, supra acutiuscula, faueibus 

 üoerulescentibus, vix fasciatis, peristoma callo anguste nigro- 

 niarginato continuum, margine externo vix incrassato, albo, 

 iiigromarginato. Alt. 31, 5, diam. 24, alt. apert. obl. 17, 

 diam. 12 mm. 



Hab. Birma. — (Cfr. M. Ch. p. 151, t. 30, fig. 10, 11). 



4. Rivularia auriculata calcarata MoellendorfT. 



Testa elongato-ovata vel subcylindrica, solida, stria- 

 lula, saepe fusco-trifasciata, anfractibus inferis humeroso- 

 angulatis, magine sinistro valde calloso, supra nodulo magno, 

 infra processu periomphalico permagno, subduplici, late re- 

 curvo et ad modum calcaris producto insigni. Alt. 22, 

 diam. 14 — 15, alt apert. 13, lat. 9 mm. 



Hai. Ban-tsliing-fu prov. Hunan. (Cfr. M. Gh. p. 180, 

 l. 35, fig. 17, 18.) 



5. Rivularia auriculata blcarinata m. 



Testa ovato-biconica, solida, crassa, striatula, striis 

 oblique arcuatis, sculptura spirali nulla, epidermide ilavide 

 fusca adhaerente induta. Spira erosa, sutura impressa. 

 Anfr. 4V'2, penultimus et ultimus carinis 2 rotundatis, su- 

 pera infrasuturali, infera in ultimo peripherica insignes, 

 ultimus infra carinam angularem sulco impresso exaratus, 

 ad columellam gibbus, antice descendens, basi carina com- 

 pressa periomphalum cingente fere calcariformi munitus. 

 Apert. obliqua ovato-rhombica, extus angulata, intus coeru- 

 lescenti albida, marginibus callo anguste nigrolimbato junctis, 

 externo tenui, supra angulum sinuato, infra arcuatim re- 



