200 AMERICAN JOURNAL 



13, Paktula umbilicata, Pse. 



Description. — T. globoso-ovata, solida, parum nitida, late 

 umbilicata, juxta perforationem rotunde angulata, transversim 

 tenuissimt^ striata; anfr. 4|, convexis, ultimo ventricosus ; 

 apertura rotunde ovalis, dentata ; labro intus calloso, oblique 

 piano ; columella callosa, subdentiformis, ad basi angulata. 



Fulvescente aut fuscescente cornea, longitudinaliter obscure 

 strigata, apice plerumque rufescente fusca vel purpurascente, 

 rarissirne omnino intense castanea, aut fulvescente cornea cin- 

 gulata. 



Dimensions. — Long. 18, diam. 12| mill. 



Shell globosely ovate, solid, rather dall, openly umbilicate, 

 roundly angulate at the umbilicus, transversely very finely 

 striated ; whorls 4:|, convex, the last swollen ; aperture roundly 

 oval, dentate ; lip internally thickened, obliquely flat ; colu- 

 mella callous, somewhat dentate, angulate at base. 



Yellowish or brownish horn color, faintly striped longitudi- 

 nally; apex usually reddish-brown or dark purple; seldom 

 wholly dark chestnut-brown ; occasionally with a broad yel- 

 lowish horn color band ; very rarely yellowish horn color, with 

 a chestnut band. 



14. Paetula compacta, Pse. 



Description. — T. elongata ovata, solida, umbilicata, parum 

 nitida, transversim tenui striata ; anfr. 5, plano-couvexis ; aper- 

 tura auriculata, verticalis vel subobliquis, prominente dentata, 

 nd basi angulata ; labro late calloso, angulato ; columella sub- 

 verticalis, incrassata. Fulvescente, interdum omnino rufes- 

 cente fusca, rarissime fascia fulvescente cingulata. 



Dimensions. — Long, 21, diam. 14 J, 



Shell rather elongatelj^ ovate, solid, umbilicate, rather dull, 

 transversely finely striate; whorls 5, plano-convex ; aperture 

 auriculate, vertical or slightly oblique, callous on its inner 

 edge, callosity not reaching the body whorl, angulate near the 

 outer edge; columella much thickened. 



Yellowish, sometimes wholly reddish-brown, and rarely with 

 a broad j^ellowish band, 



Ohservations. — The two last species are analogous forms from 

 the neighboring islands of Kaiatea and Tahaa. They differ in 

 the form of the lip and aperture and somewhat in general 

 shape. 



