20 
TRUNCATELLA §. 5. 
Truncatella clathrata fTaheitiaJ H. Adams & Ang. in Proc. Zool. Soc. 
1865. p. 54. t. 2. f. 2. 
Habitat in insulis Salomonis. 
59. Tr. pallida (Taheitea) Pease. + 
„T. non rimata, cylindracea, scalariformis, decollata, tenu- 
iscula, laevigata, nitida, subtranslucida, albida; anfr. 4, rotun- 
dato-convexis, ad suturam vix rotundato-angulatis; sntura bene 
impressa; costis prominentibus, rectis numero apnd 20; aper- 
tura verticalis, ovalis, vix porrecta; perist. continuum, margine 
dextro leviter expansum tenuisculum, latere columellari incras- 
satum. — Alt. 6 1 / 2 , diam. 2 1 / 2 mill. 44 (P.) 
Taheitea pallida Harper Pease in Amer. journ. conch. III. 1867. p. 229. 
— — Mart, fy Langlc. Don. Bism. p. 60. t. 4. f. 2. 
Tahitia pallida Schmeltz in Mus. God. cat. V. p. 102. 
Habitat in insulis Tahiti et Huaheine. 
6o. 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, bre viter so- 
lutus, costis impressus longitudinalibus, turn basim attingentibus, 
turn 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^/ 4 mill. Apert. 2 mill, longa. 44 (Cr. — Coll. Nr. 29.) 
Truncatella Arcasiana Crosse in Journ. Conch. XVI. 1868. p. 177; XVIII. 
1870. p. 107. t. 7. f. 13. 
— — Mouss. in Journ. Conch. XVIII. 1870. p. 196. 
— alternans Mouss. in Mus. God. cat. IV. 
Habitat in insulis Viti. 
Obs. „Species Tr. 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 (Graffe). An cum sequentibus ad 
§. 1 transferenda? 
6i. Tr. turricula Mousson. f 
„T. rimato-canaliculata, conico-turrita, solidiuscula, stria- 
tula, lamellose costulata, intervallis duplo majoribus, griseo- 
