| OCR Text |
Show 774 MR.W. HARPER PEASE ON THE GENUS TRIPHORIS. [Nov. 15, bilis (Ad.), T. mirificus (Desh.), T. perfectus (Pse.), and T. cylindricus (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. TRIPHORIS SIMILIS. T. turrita, vix subulata, nitida ; anfractibus duodecim, seriebus tribus granorum cingulatis, seriebus granulisque eequalibus 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 maybe distinguished from bicolor (Pse.) and also cinyu-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. TRIPHORIS MINIMUS. T. subulato-turrita, nitida, tenuiuscula, omnino rosacea; anfractibus decern, biseriatim eequaliter granulosis, interstitiis linea granulosa cingulatis; canali basali brevi; apertura subcirculari. 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 numerosis, 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-turrit a, nitida; anfractibus tredecim, triseriatim eequaliter granulosis, longitudinaliter tenuiter striatis; sutura late sulcata; canali basali recurvo; apertura subcirculari, fere verticali; alba, serie superiore granorum fusca, sutura interdum fusca. Long. 7|, diam. 2| mill. Hab. Insl. Kauai. 5. TRIPHORIS GRACILIS. T. subulata, solida; anfractibus quatuordecim, biseriatim eequaliter granulosis; interstitiis linea tenui granulosa cingulatis, |
