80 Original Descriptions of Achatinella . 



elongate form ; from the latter by its less acuminate form, white 

 suture, less solidity and their widely separated localities. — Newc. 



Hab. Niu. — Newc. 



116. Achatinella rutila Newcomb. 



A. rutila Newc. P. Zool. Soc. London, [853, p. 138, pi. xxii, fig. 21. 



Shell ovately conic; whorls 6, rounded, the last margined 

 above; suture well marked ; aperture subquadrate ; lip expanded, 

 subreflected, strongly thickened within ; columella short, termi- 

 nating in a strong twisted plait ; colour a light straw, olive or brown. 

 Long. 17/20, lat. 9/20 poll. 



Animal small in proportion to the shell, of a uniform yellowish 

 white, retractile part of upper tentacles of a light brown ; tentacles 

 filaform and slightly clubbed ; foot very broad, long as the shell; 

 mantle same colour as animal. — Newc. 



It will be .seen by comparing the animal of this species with 

 that of A. viridans, that they are clearly distinct ; and Dr. Pfeiffer, 

 by taking an extreme variety of this species for his A. macrostoma, 

 thus gives evidence in its favor. This last named is in the collec- 

 tion of Mr. dimming. — Newc. 



Hab. Niu. — Newc. 



117. Achatinella taeniolata Pfeiffer. 



A. tceniolala Pfr. P. Zool. Soc. London, 1846, p. 38. 



Ach. testa ovato-oblonga, solida, striatula, nitida, alba, fasciis variis 

 fuscis, deorsum obsoletioribus ornata ; spira conica, acutiuscula ; anfracti- 

 bus 6 convexiusculis, ultimo 4-9 longitudinis subsequante ; columella alba, 

 superne valide dentato-plicata ; apertura irregulariter semiovali, intus alba, 

 nitida ; peristomate extus brevissime incrassato, intus valde labiato, margine 

 columellari dilatato, reflexo, appresso. Long. 20, diam. medio 11 mill. 



Shell ovate-oblong, solid, somewhat striated, shining, white, 

 ornamented with various brown bands, more obsolete below ; spire 

 conic, somewhat acute ; whorls 6, somewhat convex, the last nearly 

 equal to 4-9 of the length ; columella white, strongly dentate- 

 plicate above ; aperture irregularly semioval, white within, shin- 

 ing ; lip very shortly iucrassate without, strongly thickened within, 

 dilated at the margin of the columella, reflexed, appressed. 



Hab. Palolo and Niu. — Bald. Waialae. 



This and the following, although showing distinct character- 

 istics, can be grouped with A. viridans Migh., found near by. 





