90 'TRUNCATELLA $. 5. 
Truncatella. clathrata. ("Taheitia) H. Adams & Ang. in Proc. Zool. Soc. 
1865. p. 54. t. 9, f. 9. 
Habitat in insulis Salomonis. 
59. Tr. pallida (Taheitea) Pease. 7 
T. non rimata, cylindracea, scalariformis, decollata, tenu- 
iscula, laevigata, nitida, subtranslucida, albida; anfr. 4, rotun- 
dato-convexis, ad suturam vix rotundato-angulatis; sutura bene 
impressa; costis prominentibus, rectis numero apud 20; aper- 
tura verticalis, ovalis, vix porrecta; perist. continuum, margine 
dextro leviter expansum tenuisculum, latere columellari ineras- 
Satum. —- Alt. 61/5, diam. 2!/; mill.* (P.) 
Taheitea pallida Harper Pease in Amer. journ. conch. lII. 1867. p. 229. 
—— — Mart. & Langk. Don. Bism. p. 60. t. 4. f. 2. 
Tahitia pallida Schmeltz in Mus. God. cat. V..p. 102. 
Habitat in insulis Tahiti et Huaheine. 
eo. Tr. Arcasiana Crosse. 
T. subimperforata, elongata, cylindraceo-turrita, truncata, 
costis longitudinalibus, medio anfractuum interdum evanidis, 
irregularibus impressa, haud nitens, subcretacea, squalide 
albida; sutura impressa; anfr. superst. 6, vix convexiusculi, 
ultimus vix descendens, antice leviter protractus, breviter so- 
lutus, costis impressus longitudinalibus, tum basim attingentibus, 
tum media anfractus parte evanidis; apertura oblique subovalis; 
perist. continuum, liberum, incrassatum, reflexum, nitide luteum, 
margine basali et externo valde expansis, — Operc.? — Long. 
9, diam. 2!/, mill. Apert. 2 mill. longa.* (Cr. — Coll. Nr. 29.) 
Truncatella Arcasiana Crosse in Journ. Conch. XVI. 1868. p. 177; XVIII. 
1870:p: 102: t: 2. EXOLRE 
c — Mouss. in Journ. Conch. XVIII. 1870. p. 196. 
— alternans Mouss. in Mus. God. cat. IV. 
Habitat in insulis Viti. 
Obs. Species 7r. clathratae Ad. & Ang. valde affinis, sed testa albida, 
cretacea, haud nitida, anfr. superst. 6, apertura obliqua et costis alternatim 
basin attingentibus aut medio anfractus ultimi evanidis distinguenda**. — 
Habitat in parte centrali insulae Viti-Levu (GrüffeJ. An cum sequentibus ad 
8. 1 transferenda? 
ei. Tr. turricula Mousson. 1 
,T. rimato-canalieulata, conico-turrita, solidiuscula, stria- 
tula, lamellose costulata, intervallis duplo majoribus, griseo- 
