201 



The clear, delicate species like this, with the mere semblance 

 of a columellar fold, may properly constitute a distinct group, to 

 which the name Leptachatina [lenTog and Achatina) might be 

 given, 



AcHATiNELLA CEREALTS. Testa parva, elongata, cylindraceo- 

 conica, impolita, cinereo-castanea : spira obtusa, anfr. T-8 planu- 

 latis, ultimo trientem longitudinis vix superante : apertura parva, 

 lunata, quadrantem longitudinis adequans ; peristomate simplici, 

 intus incrassato ; plica columellaii obsoleta, anfractu penultimo 

 callo induto. Long, f , lat. ^ poll. Hab. Waianai, Oahu. 



In size, form and color it resembles Bulimus hordeaceus, but 

 it is still more slender. 



AcHATiNELLA GUTTULA. Tcsta parva, tenuis, lucida, rotunda> 

 to-ovata, succinea, interdum castaneo zonata : spira obtusa, 

 anfr. 6 convexiusculis ; ultimo tumido, dimidiam longitudinis 

 superante. Apertura parva, lunata; peristomate albo, incrassato, 

 ad basim valde truncato; columella curta, plica parva instructa, 

 ad anfractum penultimum callo induta. Long. -^-, lat. -fQ poll. 

 Hah. Maui, Sandwich Islands. 



One of the smallest, and proportionally the shortest of the 

 group, its length being but little greater than its breadth. It is 

 much more ventricose and less solid than A. accincfa, Mighels. 



Helicina fulgora. Testa parva, lenticularis, acute carinata, 

 glabra, dilute castanea, lineolis radiantibus angulato-flexuosis, 

 prope suturam et ad carinam dilatatis, picta : spira depresso- 

 conica, acuta ; anfr. 5-6 planatis : apertura lata, semilunaris ; 

 peristomate reflexo, flavido, ad basim rectangulari ; columella 

 recta, callo modico albido induta. Lat. -^^^ alt. ^^^ poll. Hah. 

 Islands of Upolu and Manua, among bananas. 



This species, with H. laciniosa, and EL musiva, belons; to the 

 same group with IL flammea, Quoy. These are smaller, and 

 more globular; the first has no reflected lip and the second no 

 radiations beneath. 



Helicina musiva. Testa parva, solidula, sub-globosa, polita, 

 rufo-viridis, supra lineolis flexuosis albidis radiata : spira anfr. 4 

 rotundatis : apertura lunata; peristomate reflexo, albido, ad ba- 

 sim rectangulari ; columella recta. Lat. ^^, alt. y^g- poll. Hah. 

 Islands of Manua and Upolu, among plantains. 



