1873.] NEW SPECIES OF ACHATINELLIN.E. 87 



This species is remarkable for the roughness of the epidermis, 

 which is generally worn away from the front of the body-whorl 

 near the aperture. 



AURICULELLA. 



Auriculella tenuis, Sm. (Plate X. fig. 27.) B.M. 



Testa sinistrorsa, perelongato-conica, subperforata, tenuis, sub- 

 diapkana, incrementi lineis leviter striata, fusco-cornea, zona 

 pallida anfract. ultitni medio cincta ; anfract. 8j, vix convexius- 

 culi ; apex obtusiusculus ; apertura parva ; perist. levissime 

 dilatatum ; lamina parietalis ad aperturam aliquanto callosa ; 

 plica columellaris duplex, leviter reflexa, callo pertenui labro 

 juncta. 

 Long. 9 mill., diam. 4. 

 Var. Testa fusco-cornea, concolor. 



In some specimens just above the suture there are some blackish 

 dots, which may be produced by the dried-up animal within. 



Station. On the leaves of the ginger and other herbaceous plants 

 in the woods. 



Habitat. Kalaikoa, on Wahiawa, Helemano and Kawailoa, on 

 Oahu. 



Affinities. It differs from Aur. obeliscus, Pfr., in having a more 

 turreted spire. 



Remarks. It is very rarely dextral. The specimen figured is from 

 Helemano. 



Auriculella diaphana, Sm. (Plate X. fig. 25.) 



Testa sinistrorsa, ovato-conica, pertenuis, cornea, fusco strigata, 

 zona fusca anfract. ultimi medio obscure cincta; anfract. 5j, 

 convexiusculi ; sulura simplex ; perist. tenue, leviter dilatatum; 

 columella vix plicata, aliquanto reflexa, rimam umbilicalem parvam 

 formans, callo pertenui labro juncta ; lamina parietalis tenuis. 

 Long. 7 mill., diam. 4. 

 Var. Testa concolor, cornea. 

 Station. On the ki (Cordyline terminalis). 



Habitat. The typical forms are from Olomana and Kailua on 

 Oahu. It is also found in Palolo, Makiki, and Kalihi. 



Affinities. It is like Aur. tenuis, Smith, in structure, and like Aur. 

 auricula, Fe'r., in form. The latter species, however, is usually 

 dextral, while this is almost always sinistral. 



Remarks. The specimen figured is from Olomana. 



Auriculella perpusilla, Sm. (Plate X. fig. 26.) 



Testa minuta, sinistrorsa, breviter ovato-conica, perforata, fragilis, 

 cornea ; anfract. 5, convexiusculi ; sutura simplex ; apertura 

 subcircularis ; lamina paiietalis tenuis; perist. tenue, paululum 

 dilatatum ; columella haud plicata, aliquanto reflexa. 



Long, fere 4 mill., diam. 2|. 



Station. On leaves of plants in the woods. 



Habitat. Kahalu, on Oahu. 



