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Show 1873.] NEW SPECIES OF ACHATINELLINcE. 83 APEX LEUCOZONUS, Gk. (Plate X. fig. 6.) Testa subperforata, dextrorsa, globoso-conica, nitida, incrementi lineis (haud spiralibus) striata, griseo-brunnea, saturate griseo-brunneo strigata, ad peripheriam zona alba interrupta ; sutura distincte albo marginata; spira recte conica; anfract. 6, primi 3 convexiusculi, cceteri convexi; apertura alba ; perist. paululum dilatatum, dilute roseo-fusco tinctum, intus incrassatum; plica columellaris valida, alba. Long. 19 mill., diam. 12. Station. On trees. Habitat. The metropolis of this species is in Waialei. A few specimens have also been found in Wahiawa, island of Oahu. Affinities. It is related to and passes into A. napus, Pfr., which is also found in Waialei; but the usual forms are distinguished by having a shorter spire and a white suture, and in being free from the yellowish hue of that species. Remarks. This species is always dextral. The specimen figured is from Waialei. AM ASTRA. AMASTRA CARINATA, Gk. B.M. This is the var. agglutinans of the species obesa, Newc, Proc. Zool. Soc. 1853, p. 143, pl. xxiii. fig. 39a, where it is thus described :- " Shell somewhat carinated on the last two whorls, with the keel extended by agglutinations, giving it a pagoda-like form." Station. On the ground. Habitat. Wailuku, West Maui. Affinities. It is allied to Am. obesa, Nwc.; but that species, which is confined to East Maui, is nearly globose with an evenly rounded body-whorl, while this is strongly carinated; that also has but little of the rough bark-like epidermis with which this is loaded. AMASTRA TENUILABRIS, Gk. (Plate X. fig. 16.) B.M. Testa dextrorsa, ovato-conica, haud nitens, incrementi lineis sub-rugose striata, sub epidermide fulvida (in anfract. ult. infra suturam. plerumque detrita) alba; anfract. 5^, convexiusculi; apertura subquadrata, alba, spiram non cequans; perist. tenue; columella recta, plica parva medio munita, labro callo tenuissimo juncta. Long. 15 mill., diam. 8. Habitat. The specimens received are reported by Dr. Frick to be from Pauoa, on Oahu; but there is some reason to believe that they could not have been found on Oahu. Affinities. Its affinities are uncertain ; but it may be allied to Am. flavescens, N w c , which is found on the island of Hawaii. AMASTRA ELLIPTICA, Gk. (Plate X. fig. 15.) B.M. Testa dextrorsa, ovata, haud nitida, incrementi lineis leviter striata anfract. b\, convexi, primi 4| fusco-cornei, et ultimus pallidior, epidermide saturate olivacea (anfr. ult. antice partim detrita) 6* |