IM 



appear* to be an iinil..iil.t.-.i inbftbHant of fresh water, and 

 at Mich in an interact ity; hut are not its uiimitir- with 



inop rather than \\ith I'lanax 



i \. I ),-!,.. ]s;{o. 



71. 7". 



8tr>' _vr on the hasc; colmn- 



cllnr lip cxriMrd | \itli dull cln-tiiut 



.lii. \ decollated. 



.ill. 



/, Ascension M.,New G 



\fonoptyynvimclttnoidc*, Lea, nixl /' ! < 'ros.se and 



; on a yonirj.T >|n-rim<-n, in 



whi Tint |M-ri|ilnT;il li.-inil appears, and tin- interior of the 



outer lip : : l"-tli tln-x' <-l);iral -r- nn ?_: into tin- nonunl 



pecitt ^ itli increasing age, 



II -I..MV. II. A A. A. I.. 1C 



r. m.i..i.i:i>. iMii r>9. 



Smooth, iind- \. llo\\i>h hruwn, \vitli two 



\\iiliin. Length, -^ mill. 



Afcntritiut. 

 :-lult denuded of epidermal lmii>, the 



eoond i- , 89 . which is >:iid hy 



i scum, to be identical; if so. it 

 mart IN a in roung >hcll which has not 



yet ip. 



Unfgured Specie* of /'/./. 



I and IV i VMM i a, IM.il. 11,,!>. (>. 



We* Indies. 

 W< 



" I' ' Japan, 



'' Vl 7' //////. 



6bo 



I.I I I" TIN 1 . 



; i i->r\ 



murdi th.- apex Buorofloopi- 

 Tilly longitudinally c I, ipJnJly , tli 



