HELIX. 



The name ARMANDIA has been proposed by Ancey (11. AW/. 

 188.>. j). 4) for //. ilnridi. Desh. H. nora H. Ad. etc. The consideration 

 of this and other recently proposed suhgenera of this group will be 

 deferred until the last volume of this series (VI) treating of the 

 Helices. 



PLECTOTROPIS, p. ">!. 



Dr. von Mollendorff has instituted for a number of northern and 

 middle ( 'liina shells, included principally in Plectotrojns in this work, 

 the group (-ATIIAICA. The first species enumerated, H. j>//rr]io-;<ni>i 

 Phil., may be considered the type. The group will be further con- 

 sidered in the last volume treating of the Helices in this series. 



Additional - 



H. sunroNKi.i.A Mollendorrf, 



Moderately umbilicate, conoid-depressed, thin, subtly areuately 

 striate, decussated with very fine spiral lines, and \\itii mem bran;, - 

 ceous interrupted deciduous costula 1 ; corneous brown; whorls*!, 

 slightly convex, spire, subregularly conoid, last whorl acutely cari- 

 nated at the periphery, base slightly inflated, obtusely angulated 

 around the umbilicus, very briefly deflexed anteriorly; aperture 

 oblique, lunate-trapezoidal; peristome above scarcely expanded, 

 basal margin sinuous, a little reilexed, at the columella reflexed and 

 slightly dilated. Diam. maj. 12, min. 10', alt. <J'> mill. 



(Mollnnlnrff.} Ln.'11-Jxou, Honthrrn Cliinn. 



H. LOFOUANA -Allldti., 1888. 



Somewhat widely umbilicate, depressed, rather solid, areuately 

 striatulate, decussated with fine but distinct spiral lines, with mein- 

 branaceous deciduous interrupted costuljv sometimes elongately 

 ciliose at the periphery ; silky, corneous yellow ; spire convex-con- 

 oid ; whorls (>'., a little convex, the last with an exserted subcrenu- 

 lated carina at the periphery, convex below, obtusely angular around 

 the umbilicus, briefly descending anteriorly; aperture oblique, axe- 

 shaped ; peristome above lightly expanded, basal and columella mar- 

 gins labiate, a little reflexed. Diam. maj. 14-j, min. 13, alt. 8 mill. 



Lo-fou-Shan J\Its., (_'hiu</. 



