ACHATINELLA §. 1. 455 



XI. Achatinella Svvainsoii, 



De generis detinitione nil est, quod observationibus in 

 Monogr. L p. XX. prolatis addam. Conf. Albers Helic. p. 188 

 et Reeve Monogr. in Conch. ic. 1850. — Synon. Helicteres Graij 

 in Proc. Zool. Soc. 1847. p. 178. N. 487. 



Species hodie notae sic distribuendae erunt: 



\ . Normales : 



a. ovatae %. \ . Nr. 1 — 15. 



b. conico-oblongae §.2. — 16 — 40, 



c. turritae §. 3. _ /H— 47. 



2. Abnormes ad Achatinam accedentes (corneae) §. 4. — 48—53. 



§■ 1- 



L A. magna Adams. ^ 



T. crassa, ovato-conica, elongata, inaequaliter, irregula- 

 riter et ruditer striata, apice nigro-fusca, medio rufo-fusca, in 

 anfr. ultimis cinerea; apex subacutus; spira sublonga, curvi- 

 linearis; sutura bene impressa; anfr. 7 convexiuscuh, summi 

 confertim arcuato-costati, ultimus obtuse angularis, basi lineis 

 indistinctis elevatis spirahbus munitus; apertura ovalis, superne 

 acuta, intus calloso-incrassata; plica cokuiiellaris permagna, 

 compressa. — Diverg. media 50°; long. 1,33, lat. 0,7, long. 

 aperL 0,61". (Ad.) 



Achatinella magna Adams in Ann. Lyc. New-York V. p. 41 et 

 Contrib. to Gonchol. N. 8. p. 125. 

 Habitat . . .? 



2. taeniolata Pfr. [Reeve N. 7. t. -1.) Mon. II. p. 239. 



3. viridans Migh. (Goll. 1. — Chemn. ed. II. Bul. 



t. 67. f. 16. 17. — Ach. radiata Reeve N. 35. t. 5.) - - - 240. 



4. A. marmorata Gould. •{• 



T. oblongo-ovata, coloribus castaneis, cinereis et albidis 

 marmorata, leviter striata, imperforata; spira acuta; anfr. 6 

 convexi, superne subtabulati, ultimus magnus, ventricosus; 

 apertura ovata; perist. simplex, modice evasum; phca colu- 

 meliaris alba, compressa, fere transversa, vakie exstans. — 

 Long. Vs, lat. V^". (G.) 



Achatinella marmorata Gould in Proc. Bost. Soc. 1848. p. 200 

 et Exped. sheiis p. 34. Ed. 1851. p. 85. f. 94. 

 Habitat in montibus Haleakala ins. Maui Sandwich. 



