50 PROCEEDINGS OF THE ACADEMY OF [1888. 



A. sphoerica, Pse. (Amastra.) Jour. Conch. 1870. Jour. Conch, pi. 1, f. 5- 



5a-18r6. 



Lanai. 



A. solida, Pse. (Amastra.) Jour. Conch, xviij 173-1869. 



Oahti. 



tA. textilis, Fer. (Helix.) Pl.I,f. 8. Tab. Syst. Animal Moll, p. 56, No. 436-1819. 



A. ventulus, Kve. Mon. No. 31 (non Fer). 



A. microstoma, Gld. Proe. Bost. Soc. 25-1845, 



Luminella textilis, Pfr. Mall. Bliitt. 126-142-1854-164-1856. 



Amastra textilis, Pse. Proc. Zool. Soc. 649-1869. 



Sandwich Islands. 



-{■A. tristis, Fur. Helix (Cochlogena). Tab. Syst. Animal. Moll. p. 56, No. 435 

 1819. 



Bidimus tristis, Pfr. Mon. Hel. Viv. ii, 240-1842. 

 A. fuliginosa, Gld. Proc. Bost. Soc. 28-1845. 

 Laminella tristis, Pfr. Mall. Bliitt. 141-1854-164-1856. 

 Amastra tristis, Pse. Proc. Zool. Soc. 649-1869. 



Palolo, Oahu. 

 tA. turritella, Fer. (Helix.) Hist. Moll. pi. 155, f. 13. 



A. OaJmensis, Green. Mai. Lye. 1827. 

 Laminella turritella, Pfr. Nomen. Hel. Viv. 313. 

 Amastra turritella, Pse. Proc. Zool. Soc. 650-1869. 



Sandwich Islands. 

 tA. umbilicata, Pfr. (Achatinella.) PI. I, f. 11. Proc. Zool. Soc. 205-1855. 



Laminella petricola, Pfr. Var. Mall. Bliitt. 165-1856. 



Sandwich Islands. 



Ohs. When in London I liad the good fortune to obtain this rare 

 shell, for G. M. Sowerby Esq. Dr. Newcomb affirms it to be a good 

 species, in which I concur. 



tA. uniplicata, Nobis. (Amastra.) PI. I, f. 7. 



Shell dextral, solid, elongate oval, occasionally cylindrical, whorls 

 7, slightly rounded, the last somewhat inflated, suture impressed, 

 longitudinally striate, aperture sub-oval, white ; a single white elon- 

 gate twisted plicae within ; outer lip acute, color of the shell a pale 

 ochre-yellow, concealed by a black epidermis. 



L 20. D 9. Aperture 28. D 4. mill. Molokai. 



Ohs. This shell is from a different island from A. biplicata, Newc. 

 which it resembles, the latter possesses more coarse longitudinal 

 strise, and has a double plicse within,' and the aperture is red, while 

 uniplicata has a single plicse, and the aperture is white. The Pease 

 collection contained a large number of duplicates marked "new 

 species" by Mr. Pease. 



