197 



others, and distinguished by its perfectly flattened peristome, as 

 well as by its variegated coloring and revolving striae. 



Partula pusilla. Testa parva, elongata, conica, polita, albi- 

 do-cornea, perforata : spira acuta, anfr. 6 convexis, superne 

 tabulatis : apertura sub-quad rata, postlce lamella intro-volvente 

 instrucia ; peristomale reflexo, dextrorsum sinuato. Long, /q, 

 lat. :^^ poll. Hab. Matea Island, under stones. 



This little species bears all the characters of the group, and is 

 by fur the most minute species yet described. 



Pupa {Vertigo) TANTiLLA. Testa minima, sub-ovalis, albida, 

 perforata : spira obtusa ; anfr. 4 convexiusculis, supernis sub- 

 clathratis, ultimo exiliter rugoso-granulato : apertura sub-rotun- 

 da, peristomate everso; fauce dentibus 5 armato, quorum uno 

 columellari, uno basali, uno labiali et duobus posticis. Long, y^^, 

 lat. ^V Pol'- ^^^' Taheiti, 2000 feet elevation. 



About the shape and size of P. Gouldii, and with the same 

 number of teeth, but has two of them on the transverse lip, in- 

 stead of on the columella. 



Pupa PEP0x\u:.r. Testa minuta, variabilis, ovata, plus minusve 

 elongata, tenuis, lucida, nitida, fulv^o-cornea, perforata : spira 

 anfr. 6 convexis leviter striatis : apertura ovato-rotundata, pos- 

 tice lamellam volventem gerens ; labro simplici, ad columellam 

 plerumque late revoluto ; columella vol nuda vel lamellis trans- 

 versis 1-3 instructa. Long, /j, lat. ^^j poll. Hah. Sandwich 

 Islands ; very abundant on pumpkin vines. 



This interesting little shell is of somewhat doubtful genus. It 

 may prove to be of the genus Tornatellina or Elasmatina. Its 

 very variable characters render a decision difficult. But it be- 

 longs to the old genus Pupa, where I at present place it. 



Pupa (Megaspira) elata. Testa sub-cylindrica, elevata, tenuis, 

 nitida, striis conspicuis lirata, cornea, lituris parvis sparsis prope 

 suluram notata, vix perforata; spira obtusa, anfr. 19 ani2;uslis 

 sub-planulatis : apertura parva, obliqua, lunata, antice sub-efiusa 

 poslice lamellam volvenlem gerens ; plica columellari modica, 

 bilamellata. Long. 1^, lat. ^ poll. Hab. Brazil. 



Compared with P. elalior it is smaller, more cylindrical, more 

 delicately striated, more shining, the whorls more crowded, be- 



