PY R AMIDELL A, 



Plate YI. 



Species 36. (Mus. Cuming.) 



Pyeamidella ckocata. Py)-. testa solidd, parvd, falvd, 

 IcBvigatd, elongato-coyiicd, aiifraclihus planiusculis, su- 

 turd impressd, ultimo anfractu rotmcdatu, aperturd 

 brevi, cohmielld miiplicatd, lahro niDiplice. 



The yellow Pyhamidella. Shell solid, small, yellow- 

 ish-brown, smooth, conical, long, whorls rather Mat, 

 suture impressed, last whorl rounded, aperture short, 

 columella single-plaited, outer lip simple. 



A. Adams. 



Hab. Japan. 



A very smooth pyramidal species, with one plait on the 

 columella. 



Species 37. (Mus. Cuming.) 



PYRAMIDELLA CVLINDllELLA. Pi/r. ti'.dd eloiiijiito-cijlhi- 

 draced, ulbd, lined rubra teniti anfractanin medio 

 cincld, a)ifractibns niimerosis, plaititlntis, props siitu- 

 ram. subliimidis, snliiril profimd'i, apertard parvd, 

 colmueltd uniplicatd, labro simplici. 



The CYLiNDEU Pyhamidella. Shell elongately cylin- 

 drical, white, girt with a thin red line in the middle 

 of the whorls, whorls numerous, rather flat, a little 

 swelled near the suture, suture impressed, aperture 

 small, columella single-plaited, outer lip simple. 



A. Adams (Syrnola). 



Hab. Japan. 



The most decided characters of this little shell are its 

 elongate-cylindrical form and the thin red line round the 

 centre of the whorls. 



Species 38. (Mus. Cuming.) 



Pyramidklla subulina. Pi/r. testd pi/ramido-mtbidatd, 

 Icevi, alba, lined rubra tenui aiifractuum medio cincta, 

 anfractibm numerous, siibveutricosis, apertard obliqad, 

 columelld uniplieald, labro tenui, antice subexpanso. 



The little-awl Pyeamidella. Shell pyramidal, ta- 

 pering to a point, smooth, white, girt with a thin 

 red line in the centre of the whorls, whorls numerous, 

 rather ventricose, aperture oblique, columella single- 

 plaited, outer lip thin, rather expanded in front. 



A. Adams, Pro. Zool. See. 1862, p. 234.. 



Hab. Takano Simo, Japan. 



Blore tapering and less cylindrical in form than P. aj- 

 Undrella, and having the whorls slightly swelled. 



Species 39. (Mus. Cuming.) 



Pyhamidella denticulata. Pijr. testd solidd, elon- 

 t/ato-pyrainidatd, alba, laci, anfractibus numerosis, 

 snperne ad sutiiram ininute denUeidatis, laterihus pla- 

 nidalis, snturd profunda, anfracta ultimo medio sab- 

 angulato, infra anyuluni subrotundo, aperlurd subquad- 

 ratd, columelld unipUcatd, labro crasso, simplici. 



The toothed Pyeamidella. Shell solid, elongately 

 pyramidal, white, smooth, whorls numerous, their 

 upper edge at the suture minutely denticulated, sides 

 rather flat, suture deep, last whorl slightly ani'ular 

 in the centre, rounded beneath the angle, aperture 

 subquadrate, columella one-plaited, outer lip thick, 

 simple. 



Sowekby. 



Syrnola acicidata, A. Adams. 



Another species having been previously described under 

 the name P. aciculuta, it becomes nece^SiUy to give a nciv 

 name to this one. 



Species -iO. (Mus. Cuiuhig.) 



Pyramidell.a pufina. Pi/r. testd oblomjd, lavigatd, 

 albd, spiraliter pallidi lineatd, anfractibus noveiii, rec- 

 tiusculis, medio subcompresiis, suturd impressd, aper- 

 tard obloni/ii, autioii paulidiiin e.cpauso, colicuiMd eloii- 

 (J(dd, rectiusculd, unipUcatd, labro tenui subsinuoso. 



The chrysalis Pyra.midella. Shell oblong, smooth, 

 white, spirally and faintly lineated, whorls nine, ra- 

 ther straight, rather compressed in the centre, sutiu'e 

 impressed, aperture oblong, a little expanded iu 

 front, columella long, rather straight, with a single 

 plait, outer lip thin, slightly sinuous. 



A. Adams, Ann. and Mag. Nat. Hist. 1860. 



Hab. Miuo Sima, Japan. 



This little species is wider in proportion to its length 

 than Nos. 37 and 38. It is of a pyramidal form, and 

 distinguished by a long, straight eolnmella, with a plait 

 high up under the body-whorl. 



October, 1865. 



