38o FAUNA HAIVAIIENSIS 



TORNATELLINIDAE. 



TORNATELLINA Beck. 



Beck (Index Moll. 1837, p. 80) proposed this name as a subgenus oi Achatina, and 

 placed in it four species, all of them undiagnosed. Pfeiffer in 1841 (Symb. Hist. Helic. 

 pt. 2, p. 5) diagnosed the genus and gave (p. 130) a list of species. Previously to this 

 Anton had proposed (1839) Strobilus, but in considering his claims it should be borne 

 in mind that Strobila had twice previously been used in Zoology. 



The Hawaiian species appear to be but little understood : the only attempt at 

 figuring them was made by Gould, whose six figures, under one name, represent three 

 different species. 



I have endeavoured to avoid the creation of synonyms by a careful study of the 

 descriptions and measurements given by the various authors. The habitat in the case 

 of these very small shells is not always reliable, as they are very liable to be transported 

 with plants, &c. 



( 1 ) Tornatellina baldwini Ancey. 



Tornatellina baldzvini Anc&y, Bull. Soc. Malac. France, vi. (1889), p. 238. 

 Hab. Oahu, Tantalus (Ancey); Waianae Mts. (Perkins). — Kauai (Baldwin). 



(2) Tornatellina compacta sp. nov. 



Testa perforata, ovata, brunneo-cornea, nitidula, tenuis ; spira curta, apice obtusulo ; 

 anfr. 5 — ^\, lineis incrementi bene notati, convexiusculi, regulariter et lente crescentes, 

 sutura bene impressa ; apertura ovato-pyriformis, lamina unica pygmaea volventi 

 interdum praedita ; peristoma simplex, margine columellari reflexo et expanso. 

 Alt. 2'2, diam. V2 mm. 



Plate XI. fig. I. 



A compressed, compact little form, the aperture measuring about f of the length ; 

 the whorls are somewhat convex. 



Hab. Hawaii, Mauna Loa at 2000 feet, on hilo grass (Perkins). 



(3) Tornatellina confusa sp. nov. 



Pupa peponum Gould, P. Boston Soc. 11. (1847), P- '97! U. S. Explor. Exped. 



MoUusca, pi. VII. figs. 104 a — c. 

 See for remarks under Tornatellina peponum Gould ; this Is the edentulous form 

 figured by him. 



Hab. Kauai, Makaweli (Perkins). 



