190 Mr. ■ W. H. Benson on new Land-Shells 



tifidis, ultra medium nudis, laciniis oblongis, obtusis ; invo- 

 lucri foliolis imo connatis, lato-linearibus, obtusis; corolla 

 brevi, subcylindrica, membrana exteriore tubi hyalina et ab 

 interiore viridi remota ; paleis setaceis. — In Andibus Chilen- 

 sibus, Santa Barbara, Prov. Arauco (Gay). 

 Folia radicalia 2^ poll, long., lamina I poll, long., cum lobis 

 4{- lin. lat., lobis utrinque 4-5. Scapi exteriores liberi, 1 poll, 

 long., 2^ lin. crassi, alii ssepe folio sub capitulum donati ; capi- 

 tulum 9 lin. diam. ; involucri foliola brevissima, nonnulla lon- 

 giora; corolla alba, vix 2 lin. long.; dentes calycini distincti. 

 [To be continued.] 



XXVII. — Characters of new Land- Shells from Burmah and the 

 Andamans. By W. H. Benson, Esq. 



1. Helix ochthoplax, B. 



Testa profunde et anguste subobtecte umbilicata, depressa, superne 

 convexa, subtus convexiore, solidiuscula, oblique rugoso-striata, 

 obsolete granulata, rugis nonnullis obsoletis spiralibus distantibus 

 subtus confertioribus decussata, rufo-castanea; spira valdeobtusa, 

 sutura lineari, demum impressiuscula ; anfractibus 5 planiusculis, 

 ultimo antice convexiusculo ; peripheria carinata, carina antice 

 mitiore ; apertura obliqua, quadrato-lunari, peristomate expanso, 

 albido, margimbus callo tenui arcuato junctis, basali reflexiusculo, 

 incrassato, antice arcuato, columellari brevi, declivi, reflexo, sinuato, 

 umbilicum subtegente. 



Diam. major 54, minor 46, axis 26 mill. 



Habitat in regione Pegu. 



A single specimen of this fine Helix, which is the largest 

 known Burmese form, exceeding in size H. Saturnia, Gould, 

 and distinguished from it by the umbilicus and sculpture, 

 was forwarded to me for identification by Mr. W. Theobald. 

 The shell is slightly weathered, and has received injuries which 

 the animal has partially repaired. Near the suture and below 

 the periphery there is a tendency to angulation in one of the 

 spiral rugae, as in H. casta, Pfr. ; but this may be an individual 

 character, and cannot be considered specific without an exami- 

 nation of other specimens. The granulated surface, visible 

 under the lens, may be more prominent in a perfectly fresh 

 example. It holds an intermediate place between H. Cycloplax 

 and H, Chevalieri. 



2. Helix consepta, B. 



Testa subperforata, orbiculari, subdiscoidea, nitida, radiatim striatula, 

 superne obsolete spiraliter striata, pallide cornea ; spira depresso- 

 conoidea, apice elevatiusculo, obtuso, sutura impressa, marginata ; 

 anfractibus 8, angustis, convexiusculis, lente accrescentibus, ultimo 



