MOM I ' 



M i i MI. i I.MM> (Chenm.), An, -I. I'l | 



Flattened above. \\itli di-tant radi:i 

 earinated. defined by n rib, OODTea below, -A . r\ \\ h. r n.n 



spirally corded, Bpire-whorii often exaerted -Mtli.-i,-miy to -I;-. 



carina : whiti>h, articulated with reddi>h -li<>! nut. 

 Diain. 15-1S mill. 



n < / 



Distinguished at once from the precedim: SJMM.-'H- l,\ thr 

 top, and stronger carina, It is M. moduli^. Linn., anl M. tilonu, 

 Belbling. 



M. i.iscru-s, IMiil. 1M. is, figs, 98, 94; IM. in. !i_ 



Spin- conical, more elevated than in the |iree-linir Bpeoiefl, tin- 

 distant radiatinu- ril)s tonninir hy their tenniiiatiinis a Beriei "f t'i- 

 bercles on the sharply carinated jteriphery; base flatly eonvex, with 

 close, subnodtilons spiral cords; white, tessellated with ehestnnt at 

 the suture and periphery, aperture violaceous. Diain. 1< mill. 



A'-'i/m/''". W 



M. dwmioxii*, (rould. (fig. 95), and perhaps M. /iriiln.<. IMiil.. 

 synonyms. 



M. CEBODE8, A. Ad. PI. 49, figs. 96, !7. 



Depressed, distantly radiately ribbed, the ribs project ini: a: the 

 carinate periphery, where they are cut by two or three impressed 

 spiral lines, base with several revolving riblets. two !' which art- 

 larger and tuberculate. Diain. 12 mill. 



Muzdinbnine (('uinin.ir), dull' f ( 'nlifnriiin ( 'arp-nt-r. , 



The two series of tubercles often unite into one. 



M. UNIDENS (Lister), Auct. PI. 49, figs. '.>*-! no. 



Conical, whorls flattened, obsolctely. radiaiely, distantly rii< 

 above the angulated periphery, everywhere d<eiy -pirall\ 

 white, the cords minutelv punctate with reddish cheMnut. 



Diain. 15 mill. 



l|V.s/ //,,//, x. West Coast of N. America, /'/////, 



The synonymy includes . M. <ini/u/'ttn*. ( '. 1. Ad.. M. s Nut- 



tall), A. Ad., .17. trochiformi*, Eyd. el 8ouL fig, l" (l . M. 

 Dillw., M. ('irrhrilnnicu*. Lam., tf. oafaittlotus, IMiil. 



M. MOIM:I.I:TI. Fischer. IM. l!. figa, 1. '2. 



Narrowly subjx-rfbrate, rather thick, -pirally lirate, carinate. the 

 body whorl bicarinate ; lip thick, sub-bilabiate: whiti-h. the U|JHT 



