HELIX. 65 



above and below ; aperture minutely seven-plicate, three equal 

 ones on the parietal Avail, and four smaller and palatal. 

 Diam. 3*3 mill. 



Mango, Fiji Is. 



H. MAUPITIENSIS, Garrett. PI. 12, figs. 27-29. 



Narrowly, deeply umbilicated, thin, subpellucid, closely ele- 

 vately striated, striae finer below ; yellowish brown, marked with 

 dark chestnut tessellations, sometimes becoming zigzag stripes 

 on the body-whorl, suture rather deep ; whorls 6J, rounded, 

 slowly increasing, the last one slanting from the shoulder 

 towards the base ; aperture with eight lamellae, four palatal, one 

 columellar and three parietal. Diam. 3 mill. 



Maupiti /., Society Is. 



H. DE GAGEI. Garrett. 



Closely allied to H. Maupitiensis, but may be distinguished by 

 its coarser rib-like stride, more oblique aperture, smaller umbili- 

 cus and more depressed body-whorl. The palate has five and 

 the parietal wall three revolving lamellae ; corneous or yellowish, 

 tessellated and strigated with chestnut. Diam. 3 mill. 



RurutUj Austral Is* 



Unfigured. 



H. HYSTRICELLOIDES, MoUSSOIl. PI. 12, fig. 30. 



Narrowly umbilicated, striate-costulate, radiately marked with 

 whitish and grayish corneous strigations, suture acutely im- 

 pressed ; whorls 5 J, slowly increasing, subinflated, the last a 

 little descending in front, rounded below ; aperture six to eight- 

 lamellate, of which three or four are parietal, the first and third 

 larger, the fourth inconspicuous, three to five palatal, the middle 

 ones largest, the first and last (columellar) smaller. 



Diam. 4'25 mill. 



Ins. Upolu* 



H. GRAFFEI, Mousson. PL 12, fig. 31. 



Moderately umbilicated, rather thin, acutely biarcuately 

 costulate-striate, grayish, with zigzag chestnut strigations; 

 whorls 5, slowly increasing, convex, a little tumid towards the 

 suture, the last not descending, rounded below ; aperture with 

 seven lamellse, two on the middle of the parietal wall, and five 

 palatal, whereof the first is smaller. Diam. 5'2 mill. 



Ins. Upolu. 

 5 



