UNRECOGNIZED SPECIES. 367 



certainly undeterminable and should be dropped, since 

 Mighels' types were destroyed by fire. 



Achatinella ridua Pfr., Nomencl. Hel. Viv., 1878, p. 306, no. 

 31, error for A. vidua. 



Achatinella tuba GuL, Pfr., Monogr., v, 167, error for 

 Lutea GuL, a MS. name which Pfeiffer printed in the synon- 

 ymy of A. tappaniana. See Monographia viii, p. 217. 



Achatinella turbinata Nuttall, Wahoo. Jay's Catalogue, 

 edit. 3, p. 58, 1839. Nude name. 



"Spiraxis sandwichensis Pfr. Shell subperf orate, oblong- 

 turrite, rather solid, waxy; spire turrited, rather obtuse; 

 whorls 7%, a little flattened, plicate below the suture, the last 

 a little more than one-third the length ; columella compressed, 

 twisted; aperture scarcely oblique, oval; peristome simple, 

 the margins joined by a thin callus, the right margin some- 

 what dilated forwards, columellar margin somewhat reflected. 

 Length 9, diam. 3 mm. Aperture 3 mm. long, 1% wide. Gum- 

 ing collection" (Pfr., Proc. Zool. Soc. Lond., 1856, p. 335; 

 Monographia, iv, 575). 



Mr. Sykes (Fauna Hawaiiensis, p. 399) thinks this a form 

 of Bulimus lactifluus Pfr., from Chili. If so, it must be a 

 young shell. Cf. Manual, Vol. XIX, p. 13. 



"Bulimus kanaiensis Pfr. Shell subperf orate, conic-ovate, 

 rather solid, striatulate and irregularly malleate-impressed, 

 white; spire conic, sometimes gray above, the apex obtuse; 

 whorls 5, convex, the last scarcely exceeding the spire, ob- 

 liquely descending, rounded at the base; columella slightly 

 arcuate; aperture oblique, truncate-oval; peristome simple; 

 unexpanded, the columellar margin dilated, reflexed, some- 

 what appressed. Length 14, diam. 8 mm. ; aperture 8 mm. 

 long, 4% wide. Mus. Cuming" (Pfr., P. Zool. Soc., 1856, p. 

 332). 



The name was corrected to kauaiensis in the Monographia 

 Heliceorum, iv, p. 469. Mr. Sykes states that it is very close 

 to Bulimus albicans Brod., of Chili, but he is " not quite sure 

 of the identity, as the shell is slightly more succineif orm " 

 (Fauna Hawaiiensis, p. 399). 



Achatinella faba Pfeiffer. " Shell imperf orate, dextral. 



