•;o^^^^_N<m^ONJ^MWBlMIU.-D.U.L .LX„ BARKCH. 339 



The .lender shape and IworiTde^reroped^rtm^T^^hi^S^b^c;^ 



d^L^rd'ieif '-''"'"' "•'" ^"^-""-^ *'"^'- '^e oth:.. 



TURBONILLA (CHEMNITZIA) ACOSMIA. new species. 

 Plate XX, fig. 5. 



while" "C7 ''°"f' T™'"^' <''°"S"'«-«<'"i^-- g™tl.r tapering- Ik- 



wh,te_ Nuclear whorls one and three-fourths, planorboid lar^ 

 extendn,g- somewhat beyond the outline of the spil-e on the 1 f f e 

 scarcely at all nnniersed, having their axis at a right angle to the IS 

 of the later whorls. Post-nuclear whorls rathe? high between the 

 utures, shghtly rounded, son.ewhat shouldered, ornamented Z, ntther 

 low broad rounded, oblique axial ribs (which are badly worn on the 

 hrst wo whorls), the third contains fourteen, the fifth twenty and the 

 penultuuate th.r^v; these ribs are distinct at the summit, but fuse al 

 the periphery of the whorls. Intercostal spaces narrow s ■ celv 

 depressed bebw the general surface of the shell, extendi^o „ tt 

 periphery butures well marked. The summits of the last th el 

 whorls tan a very httle anterior to the termination of the intercostal 

 spaces and leave a very narrow plain band above the suture Perinh 

 ery and base o the last whorl well rounded. Aperture subquadrate" 



~1 o r: "' '""r*"" ^' ">•' ^■""^"°" °' '^e eolun,eira, d tS 

 oute. l.p, posterior angle acute, outer lip thin, showing the external 



sculpture within l,y transmitted light; columella straight, ob q 



r ti •:: ^:^. -'"^ » -^ -'• '»- °'"'^- ^^^'^ ' 11... a^;:: 



locat'itv"'''Ll't"''^K° %" Dunker collection and is without definite 

 rom ianan Tt ! ^>-™'" '•^"'''■^ i" the Dunker collection are 



tiom Japan. It ,s quite probable therefore that this may also be the 

 home of the present species. The type and only spec men ha ten 

 post-nuclear whorls and measures: long. 8.4 mm.; diam. 2.4 mm 



. tm^,o„ai„) «««.« = (new name for Turlonilla ohdiscm Gould- not 

 /t;rc b' Ad T,"^- \Adams,»=r„,fo„-ff« iStrlot^^o^ml^ T 

 itk *?■ «• *''"" ^'"""^ '^■■^y' ^''P^ Town, South Africa but 



lacks the fine spiral striie and is in every way somewhat smaller. 



TURBONILLA (CHEMNITZIA) QARRETTIANA, new name. 



Plate XXI, lis. 5. 



Odoslomu. «ta(a Gakbett, Proo. MM. Nat. Sci. Phila.lelpMa, 1873 „ -.J „1 

 ni, fig. 46. Not TurhoniUa micu, de Foi.in, istl ' ' 



Shell moderately large, subdiaphanous, bluish white, shinin.. Earlv 

 whorJsdecoJlated. Lifter whorls almost flatten^l^na-what shouldered 



«Proc. Bosl. Soc. NaTlJiZ:^;ilr,^-^0^7-;^j^ to Conch: .850, pp. 72-73: 



