SYKES : NEW JIAWAIIAN NON-MAllINE M0LLU8CA. 129 



Hah. — Lanai (Newcomb) ; windward side of Lanai, apparently 

 extinct (Perkins). 



This is one of those species which are fast disappearing fi'oni the 

 fauna of the Hawaiian Islands, or are, indeed, already extinct. The 

 two specimens found by Mr. Perkins have lost their periostracum, but 

 others in the British Museiim, collected forty years ago, are in far 

 better condition. The species is, in foi'm, of the group of A. turritella, 

 Per., and has the blackish periostracum usually found on the species 

 of Amastra from Lanai. 



10. Amastea fkatekjta, n.sp. 



Testa sinistrorsa, ovato-turriformis, teniiis ; sutura impressa ; 

 anfr. 6A— 7, convexiusculi, longitudinaliter striati, cpidermide fusco 

 vel nigro-corneo induti ; apertura ovata, mediocris ; pciistoma rectum, 

 acutum, lamina mediocri. Alt. 10, diam. max. 5*5 mm. 



Hah. — Mountains of Lanai, behind Ivoele (Perkins). 



This interesting species belongs to the group of A: soror, Newc, 

 and A. elongata, Newc. It is clothed entirely with a dark-brown 

 periostracum, and is a little more inflated than either of the two 

 species mentioned. There are specimens in the Cumingian Collection 

 which have been labelled A. soror, and possibly these were part of the 

 series which induced JN^ewcomb to give Lanai as one of the localities 

 for that species. All later authors have given Maui only. 



11. Amastea villosa, n.sp. 



Testa elongato-turrita, sinistrorsa, subimperforata, crassula, pallide- 

 cornea, epidermide brunneo induta ; anfr. 7-7^, convexi, longitudi- 

 naliter et irregulariter valde striati ; sutura bene impressa ; apertura 

 lunata, fere recta ; peristoma rectum, acutum, albidum ; lamina 

 columcllaris parva. Long. 20, lat. 7 mm. 



i7«Z».— Molokai (Perkins). 



This shell, nearly related to A. Hutch insonii, Pease, from Maui, 

 may be separated by its greater size, more elongate spire, and the 

 shape ox the last whorl, which is not so fusiform as in that species. 

 The suture is also more deeply impressed. 



12. Amastea ctteea, n.sp. 



Testa dextrorsa, imperforata, ovato-fusiformis, solidiuscula, nitidula, 

 flavida, suboblique valde striata, apice resinaceo, acutulo ; anfr. 6, 

 plano-convexi, primi mediocritcr plicati, ultimus f altitudinis testte 

 seqiians, epidermide nigro-brmmeo leviter indutiis ; sutura impressa ; 

 apertura ovato-lunata ; columella contorta ; lamina valida, alba ; 

 peristoma simplex, margine dextro recto, acuto. Long. 15, diam. 

 max. 8 mm. 



Ilah. — Molokai (Hutchison, Baldwin). 



Though not yet found by Mr. Perkins, I take the present 

 opportunity of describing this form. It is noteworthy for its light 

 straw-yellow colour ; the periostracum is almost entirely lacking, save 



