IM.-.-OIH 



., I'l i>i 1'iioNA * Lcadi, Is.VJ |, M..III- 1884. 



Originally included a heterogeneous assemblage of specie- ut 

 varioii- t\pe>. Monterosato has recently restricted it to tlmsr 

 having punctate spiral lines; either loniritudinally ribbed or smooth. 



II. Kl Til. \r-i:i>, Leach. 

 Thi> LToiip -hades unmistakably into the typical one. 



Section Smw AKT/IA, I>uc<|. Dant/. et Dollf 1884. 



Shell elongated, conic, longitudinally ribbed or smooth, colum- 

 ella dentate. R. MONODONTA, Bivona. 



Section /iiM-m: \. Leach. 1847. 



(MauHlia-like. izenerally elate, smnothish or biii.LMtiidiiially ribbed ; 

 margin of aperture dilated or reflected. 



Aciti', H. cV A. Adams, is a synonym. K. ATKIM-A i.i-it M, Linn. 



Section TIKI;I:U,A, Leach. 1847. 



Shell ovate, minute, often flamed or maculate with chestnut, with 

 rounded longitudinal ribs, becoming obsolete on lower part of body 

 whorl, or sometimes -month, no spiral stria-. II. I-AKVA, DaCosta. 



/'/x/7////f/, Monts., 18S4, may be united with this section. Whorls 

 turriculated, ribs interrupted, lip acute, not externally var'n-"--. 



/:. //.;////. Phil. 



;ion M(III:I:N-TI.I:M \. Siolic/ka. l' s 'i s . 



Turriculated, thin, semijiellueid; whorls fre|uently transv-r>rly 

 coMnlate; columella fissured at th<' base; ajierture subovate, an^u- 

 lated behind, rounded in front, maririn very little dilated, outer lip 

 simple, x-arcely varic<^. |-'o>>il in brackish or fresh-water de- 

 posit-. K. INTI.AIA, Andr/ejowski. litvtfrti 



MII MAN/MM A, Hrusina. 1870. 

 Shell tiion- ni !>- -hoiildered, longitudinally ribbed, spirally 



ridir'-d. peristome duplicate, l^nrti/n-nn. 1J. < <-i \\\. Ads. 



I-'/* intii'/i't, .JHl'ivy-. L884, i- a -ynonym. 



on I-'UI.IM \. ( Jroas 



TIM liculated. Ion-jit udinally ribbed, -pirally striatr. posterior end 

 ol aperture with a -mall >im^. II. I\-K,MS, Folin. I^iunimi. 



Submenu.- s \ i; \ N\KA, I^each. 1847. 



Shell smooth, stout, .Icvated conic, prristome thick, continuous. 



II. I I.VMMI \, Frauenf. 



