SYKES : NEW HAWMIAN NOJT-MARINE MOLLUSCA. 127 



from this last species by the more depressed spire, the absence of keel 

 on the last whorl, deeper suture, the absence of revolving strise, etc. 



3. Endodonta (Nesophila) Lanaiensis, n.sp. 



Testa parva, late et perspective umbilicata, solidula, parum nitens, 

 lutea, strigis brunneis subaeciualibus picturata et radiata, confertim 

 costulata costulis parvis, circa umbilicum magis approximatis et 

 tenuioribus, basi sub lente indistincte spiraliter striata ; spira depressa, 

 apice laevi ; sutura impressa ; anfr. 4|- ; apertura ovato-circularis, 

 peristomate simplici, lamella unica volventi, parietali. Diam. max. 5, 

 min. 4, alt. 1-5 mm, 



Sah. — Mountains of Lanai, behind Koele (Perkins). 



In possessing only a single parietal lamella, this shell approaches 

 E. jugosa, Mighels, E. mbiginosa, Mighels, and E. decussatula, Pease. 

 Prom the last-named the absence of decussation, save for a few 

 intlistinct spiral strise on the base, will at once serve to separate it. 

 It may be distinguished from the two first-named by its smaller size, 

 more depressed form, and more distinct colour-markings ; the mouth 

 is also more drawn out from the body- whorl of the shell. 



4. Endodonta (Pterodiscus) Wesleyi, n.n. 



While dealing with species of Endodo7ita, it may be of service to 

 point out that the shell from the Hawaiian Islands made the type 

 of a section of Endodonta, called Trap idolater a ' by Mens. Ancey, and 

 subsequently Pterodiscus • by Mr. Pilsbry, is not really the Helix alata 

 of Pfeiffer. The true H. alata, Pfr.,^ has a columellar plait, and will 

 probably prove to be an Amastra, allied to ^. helicifonnis, Ancey. The 

 shell figured by Mr. Pilsbry, therefore, requires a new name, and 

 that of Wesley i may be suggested, in honour of Wesley Newcomb, who 

 has done such splendid work on the Hawaiian fauna. 



5. Leptachatina impressa, n.sp. 



Testa imperforata, dextrorsa, oblonga, pellucida, micans, pallide- 

 cornea, striata ; spira elongata, apice obtusa ; sutura impressa ; 

 anfr. 7^, convexiusculi, ultimus ^ alt. testce fequans ; apertura 

 sinuate -pyriformis ; perist. simplex, tenue, margine dextro recto, 

 arcuato, columellari angusto, adnato, parietali nullo. Alt. 7, 

 diam. 2*5 mm. 



Sah. — Mountains of Lanai, behind Koele (Perkins). 



An interesting little species belonging to the striate group of 

 Leptachatina, principally from Kauai. There are only two specimens, 

 which, although they do not quite agree, belong to one species. No 



' Preoccupied in Coleoptera. 



^ Man. Conch., ser. ii, vol. ix, p. 36, i)l. iv, fig. 44. 



^ Type in the British Museum. 



