48 DKYM.r.l s, MKXICO AM) CI.NTKAI. AMI'.UICA. 



handed uhscurely with hrowii. Spire conic, llic apex a liltlc olmise, 

 suture irregularly impressed. "Whorls -V,, a little con\ex. tin- em- 

 hryonal 1 \ smoothi,-h, pal'' lle>hy-hrown, the last \\ horl a little longer 

 than tin- spire, ('li.-ciirel)- three-handed with brown. 



Aperture .-nhovaie. shining and fleshy-white within, vividly show- 

 ing the external hands ; peristome a little expanded, milk white, the 

 margins separated ; eohiniella somewhat twisted inside, rellexed, di- 

 lated, partly closing the perforation; basal and outer margins a little 

 retlexed, the outer narrowing toward its insertion. 



Alt. 3'2, diam. 15; length of aperture scarcely 17 mill. ( ( '. $ F.) 



*\<-i<r llie fit// af Orizaba (Botteri.). 



Bitlimiiltis (Drynuni*} holla //, Cuossi-; iV Kisrii. in .loiirn. cle 

 Conch, xxiii, p. ~>'2 (IS?.")); ^\Iiss. Scient. Mex., Mollnsca, i, p. 1>7, 

 pi. 24, iig. Id, 10 a Strehel, l'>eilr. I\Ie,x. Land- und Siissw.- 

 Conch. v, p. (').') -- lliiliniiis Italti rii 1'ri;. Monogi 1 . Ilelie. Vivent., viii, 

 [i. C>1.. Iliilinins sidcosits, form A (part), S i I.-KIU.I., loc. cit. p. Gl, 

 pi. ii, Iig. 17; i'orm 15, p. C>"2, pi. - r >, Iig. 4 (tcsfe Marti us) Otostoiiiits 

 sitlcosux var. linttcri! 3lAi:TKNs, Uiol. Centr. Amer. INItilh, p. 2dS. 



Considered a variety of 1). svlcusiis hy \on IMartens; hut it seems 

 to differ in the line spiral scnlptnre, which is wanting in 



D. SL-LCOSUS (1'ieiiler). PI. lo, figs. 59, 60, r,i, r,-j. 63. 



Shell ohlong-eonic, perforate, si lid and strong; opaipie-hlnish, or 

 lleshy-white, frequently clouded longilndinally with I'eddish-hrown on 

 the spire, ;md -ometimes showing faint traces of three wide hands on 

 the last whorl. Snrlace lustreless, il/t/ili/. <-iirx<>li/ <///</ irregularly 

 ii-riiikleili the spire smoother, conic, ape\ with typical Dri/mm H* 

 sculpture, \\horls (i-li. 1 ., con\ex. 



Aperture ovate or squarish-ovate, pinkish-purple /////////, moderately 

 oliliiiue ; peri>tomc hlnnt, whitish, sou i u lial expanded, coliimi'liar 

 margin relieved above; colnmella nearly straiglil alio\e, and white, 

 or with tin- parietal wall, purple-tinted. 



Alt. .'!."!,. diam. 17, length of aperture Hi mill. 



Alt. 1_, diam. 17^,, length of aperture 'Jd], mill. 



Central Mexico i near the city ol M<.i-ir<> ( lloncard, Hahn); mlli'i/ 

 of J\I<.i !<> ( Uonrgi an i; 7'iic///,n//n ( 1 1< ge\\ isch ): summit <>(' t/ic Sierra 

 i!r /us Ai/inis /->- nniliiliix, at an ele\ation of ll.'iliu Net ahove the sea 

 (II. II. Smith): 7'n.rjK/n (Sliehelj, ^',,1,-dail. Stale <>J <; urn-em (II. H. 



