neic Species of Shells. 153 



its tenniiiatioii ; aperture subovate, wliite witliin ; j)cristomc 

 rather broadly o.\[)!iiKleil aiul slightly rctlcctcd ; columella 

 vertical, exjjaiidetl above. 



J\I»j. diaiu. ol, alt. A I mm. 



Hah. Nias l.-<Iaiul, Sumatra. 



A haiul-somc aud distinct new form, which cau be readily 

 separated trom A.engiinoensis, Fult., by its much less convex 

 whorls and less broadly dilated colunudla. 



Named in honour of Waller F. NN'ebb, Esq., of Rochester, 

 Kow York, 



JJuliniulus [Protoqli/ptns) iljeclus. 5:p. n. 



(l^l.X. ti^r. 1.) 



Shell very narrowly umbilicated, acuminately elongate, 

 rather thin, covered with yellowish-brown epidermis, white 

 beneath, aj)ical structure consisting of oblique, microscopic, 

 wriidvled or granular strife, lower part with inconspicuous 

 oblique striuB or lines of growth crossed by close-set spiral 

 rows of minute hairs ; whorls 8, slightly convex, regularly 

 increasing, the last not deHected ; suture rather deep, simple; 

 aperture suboval, white within ; peristome very slightly 

 ex[>anded, broader at jioint of insertion of columellar portion, 

 margins joined by a thin transparent callus. 



]\laj. diam. 10, alt. 29 mm. 



Jlab. Santa Catharina {JiJe Linnsea Institute label). 



The nearest sjiecies to this known to me is crepundii, Orb., 

 but that is readily separated by its less cylindrical form. 



Drymnus volsus^ sp. n. (PI. X. fig. 2.) 



Shell elongately fusiform, minutely rimate, rather thin, 

 almost smooth to the eye, but under the lens the usual 

 Vrymceus sculpture on nuclear whorls, while the lower 

 whorls have oblique blunt costre or lines of growth crossed by 

 microscopic close-set spiral striaj ; whorls 6^-, slightly convex, 

 first three and a half dirty white, lower with cream ground 

 ornamented by irregular, oblique, somewhat zigzag, dark 

 brown stripes which are broken by narrow white lines and 

 dots; aperture oblong-oval, dark brown markings within; 

 peristome rather broadly exj)anded, especially at the basal 

 portion, pale yellow ; columella narrow and cord-like, 

 entering spirally. 



Maj. diam. 12^, alt. ."30^ mm. 



ILib. Ecuador. 



1 know of no other species with which to make a hel[)ful 

 comparison. 



