MOLLUSCA 381 
(4) TZornatellina cylindrica sp. nov. 
Testa elongata, cylindrica, cornea, perforata; anfr. 5—54, convexiusculi, striatuli, 
ultimus rotundatus, 2 altitudinis testae aequans, sutura impressa; apertura ovata vel 
lunaris, lamellam in pariete gerens; columella incrassata, albida, contorta, interdum 
denticulo mediocri munita. Alt. 2°2, lat. vix 1 mm. 
Plate XI. fig. 28. 
This species may be distinguished from the true 7. peponum, by its smaller size 
and more slender shape. 
Has. Oahu, Waianae Mts. (Perkins).—Kauai, Makaweli, one specimen (Perkins). 
(5) TZornatellina dentata Pease. 
Tornatellina dentata Pease, P. Zool. Soc. London, 1871, p. 460. 
I identify Mr Perkins’ specimens with some doubt; if not this species they 
belong to no other recorded Hawaiian form. 
Has. Hawaii (Pease); Puna (Baldwin) ; Kona at 3000 feet (Perkins). 
(6) TZornatellina euryomphala Ancey. 
Tornatellina euryomphala Ancey, Bull. Soc. Malac. France, vt. (1889), p. 239. 
Not found by Mr Perkins; I have specimens from another source, without indica- 
tion as to which island they come from. 
Has. W. Maui (Ancey). 
(7) Tornatellina extincta Ancey. 
Tornatellina extincta Ancey, Bull. Soc. Malac. France, vii. (1890), p. 341. 
Has. Central Maui, subfossil (Ancey). 
(8) TZornatelhina gracilis Pease. 
Tornatellina gracilis Pease, P. Zool. Soc. London, 1871, p. 460. 
A single shell, found by Mr Perkins, agrees well with Pease’s description and 
measurements, save that Pease speaks of the shell being sometimes spirally sulcate, 
while Mr Perkins’ specimen shews traces of a single spiral thread at the periphery. 
Haz. Kauai (Pease).—? Hawaii, Kona at 3000 feet (Perkins). 
