776 MR. W. HARPER PEASE ON THE GENUS TRIPHORIS. [Nov. 15, 
10. TRIPHORIS CYLINDRICUS. 
T. elongata, gracilis, cylindracea, solida ; anfractibus numerosis, 
triseriatim granulosis, serie mediana minore, transversim tenu- 
issime striatis, ad basin punctulatis; canali basali brevi, re- 
curvo, canali posteriore apertura clausa, tubulato, subcirculari ; 
omnino alba. 
Long. 12, diam. 23 mill. 
Hab. Ins. Apaiang. 
An elongate slender shell, the only one of large size, of which 
the posterior canal is closed and produced in tubular form. 
11. TrRIPHORIS GRANOSUS. 
T’. elongato-subulata, solida; anfractibus biseriatim cequaliter 
granulosis, interstitiis linea granulosa cingulatis ; canali basali 
brevi, valde recurvo; apertura subcirculari; pallide fusca, 
granulis albis. 
Long. 6, diam. 1? mill. 
Hab. Ins. Tahiti. 
12. TRIPHORIS TUBERCULATUS. 
T. subulata, solida; anfractibus duodecim, triseriatim granulo- 
sis, serie mediana paulo minore, canali basali brevi, recurvo ; 
apertura subcirculari; fusco alboque irregulariter maculata. 
Long. 8, diam. 2+ mill. 
Hab. Ins. Kauai. 
This is the only granulated species I have met with on which the 
colours are not regularly disposed. 
13. TRIPHORIS ORYZA. 
T’. abbreviato-subulata, robusta, solida; anfractibus decem, tri- 
seriatim equaliter granulosis; canali basali brevi, recurvo ; 
apertura subcirculart ; apice acuto; lutescens, serie superiore 
granorum alba ; basi fusco bilineata. 
Long. 4, diam. 14 mill. 
Hab. Ins. Kauai. 
14. TRIPHORIS PUSTULOSUS. 
T. elongata, cylindracea, solida; anfractibus tredecim, triseri- 
atim granulosis, serie inferiore minore, longitudinaliter subcos- 
tatis, costis supra suturam continuis ; sutura concavo-sulcata ; 
lutescens, granis albidis, interstitiis granorum rubidis. 
Long. 11, diam. 23 mill. 
Hab, Ins. Kauai. 
The interstices between the granules being stained with red gives 
the shell a pustulated appearance. 
The granules follow each other in regular succession, one under 
the other, and connected with each other, and over the suture as 
well, by a slightly elevated rib. 
