774 MR. W. HARPER PEASE ON THE GENUS TRIPHORIS. [Nov. 15, 
bilis (Ad.), T. mirificus (Desh.), T. perfectus (Pse.), and -T. cylin- 
dricus (Pse.). Judging from the names attached to the two former 
species, they were considered of abnormal form; they present, 
however, the characters of the genus fully developed. The figures 
in the ‘ Voyage of the Samarang’ illustrate fairly the different stages 
of growth; two are mature, viz. figs. 28 and 37. 
The following I suppose to be new. 
1. TriIpHORIS SIMILIS. 
T. turrita, vie subulata, nitida; anfractibus duodecim, seriebus 
tribus granorum cingulatis, seriebus granulisque equalibus et 
regularibus ; sutura sulcata; canali basali brevi, verticali ; 
apertura oblique ovata, superne acute angulata ; flavescente, 
serie superna granorum rubida. 
Long. 5, diam. 1? mill. 
Hab. Insl. Kauai. 
The above may be distinguished from bicolor (Pse.) and also eingu- 
liferus (Pse.), to both of which species it is allied, by the upper row 
of granules only being red. It also differs in sculpture. 
2. TrRiIPHORIS MINIMUS. 
T. subulato-turrita, nitida, tenuiuscula, omnino rosacea; anfra- 
ctibus decem, biseriatim equaliter granulosis, interstitis linea 
granulosa cingulatis; canali basali brevi; apertura subcirculart. 
Long. 3, diam. 1 mill. 
Hab. Insl. Howland, Insl. Kauai. 
The smallest of the genus, so far as known. 
3. TRIPHORIS PALLIDUS. 
T. elongato-cylindracea, nitida, omnino albida; anfractibus nu- 
merosis, triseriatim granulosis, serie mediana minore ; sutura 
lirata; canali basali brevi, recurvo; apertura parva, oblique 
ovata. 
Long. 7, diam. 2} mill. 
Hab. Insl. Kauai. 
A slender species without any peculiar character. 
4, TripHoRIS SULCOSUS. 
T. elongato-turrita, nitida; anfractibus tredecim, triseriatim 
equaliter granulosis, longitudinaliter tenuiter striatis ; sutura 
late suleata; canali basali recurvo; apertura subcirculari, 
fere verticali; alba, serie superiore granorum fusca, sutura 
interdum fusca. 
Long. 73, diam. 23 mill. 
Hab. Insl. Kauai. 
5. TrRIPHORIS GRACILIS. 
T. subulata, solida ; anfractibus quatuordecim, biseriatim equa- 
liter granulosis ; interstitiis linea tenui granulosa cingulatis, 
