PYRAIMIDELLA. 



Plate V. 



Species 30. (Fig. a, b, Mus. Cuming.) 



Pyramidell.\ obnata. Pyr. testa elongato-cytindrnceu, 

 nitidd, pallida, anfractibm numerom subventricosk, 

 medio prope siituram lined rubra anr/ustd ci/ictis, 

 aperlurd subovali, colitmelld uniplicatd, tenui, leviier 

 7-eJlexd, labro tenui. 



The ornate Pyramidella. Shell long, cylindrical, 

 smooth, pale, whorls numerous, rather ventricose, 

 girt with a narrow red line in the centre near the 

 suture, aperture rather oval, columella with one 

 plait, thin, slightly reflected, outer lip thin. 



Gould. 



ObeliscM columella, A. Adams. 



Hab. Coral Sea. 



Species .31. (Fig. a, b, Mns. Cuming.) 



Pyramidella pusillus. Pyr. tedd parvd, obtuse co- 

 nicd, alba, nitidd, anfractibus planiusculis, suturis 

 profundis, anfractu idlimo vix angulato, aperturd 

 subpyriformi, columella bipUcatd, labro intus lirato. 



The little Pyramidella. Shell small, obtusely coni- 

 cal, white, smooth, whorls rather flat, suture deep, 

 last whorl scarcely angulated, aperture rather pyri- 

 form, columella with two plaits, outer lip internally 

 ribbed. 



A. Adams, Sowerby's Thes. Conch. Obeliscus sp. 16. 



Hab. Island of Luzon ; Cuming. Japan; A.Adams. 



In general appearance this little white shell resembles 

 P. nitidula, but the plaits inside the inner lip distinguish 

 it sufficiently. 



Species 33. (Mus. Cuming.) 



Pyramidella striatula. Pyr. testa turritd, subulata, 

 alba, tenui, subpellucidd, spiraliter tenuissime striatd, 

 anfractibus octo, subventricosis, sntiird profundd, aper- 

 turd oblongd, columelld postice uniplicatd, labro tenui. 

 intus lirato. 



The little-striated Pyramidella. Shell turreted, 

 subulate, white, thin, almost transparent, spirally ver\' 

 finely striated, whorls eight, slightly ventricose, suture 



deep, aperture oblong, columella with a single pos- 

 terior plait, outer lip thin, lirated within. 



A. Adams, Sowerby's Thes. Conch. Obeliscus sp. 38. 



Ilab. Feejee Islands. 



This small white species is very finely striated, and of a 

 very thin and semitransparent texture. 



Species 33. (Fig. a, b, Mus. Cuming.) 



Pyramidella balteata. Pyr. testd parvd, conicd, acu- 

 minatd, vix perforatd, albidd. nitidd, fascia rubra pal- 

 lida cinctd, anfractibus complanatis, snturd profundi 

 impressd, anfractu ultimo subunyulato, aperturd ovatd, 

 columelld tenui, reflexd, bipUcatd, labro tenui intus 

 lirato. 



The belted Pyramidella. Shell small, conical, acu- 

 minated, scarcely perforated, whitish, smooth, girt 

 with a pale red line, whorls flattened, suture deeply 

 impressed, last whorl rather angular, aperture ovate, 

 columella thin, reflected, with two plaits, outer lip 

 thin-ribbed within. 



A. Adams, Sowerby's Thes. Conch. Obeliscus sp. 17. 



Hab. Island of Mindinao (twenty fathoms, sandy nuul) ; 

 Cuming. 



Species 34. (Mus. Cuming.) 



Pyramidella Cremnitziana. Pyr. testd elongatd, me- 

 dio vix inflatn, alba, hcvigatd, anfractibus nmnerosis, 

 snbplanulaiis, ad suturam ant/ulatis, aperturd parvd, 

 columelld bipUcatd, labro tenui. 



Chemnitz's Pyramidella. Shell elongate, veiy slightly 

 swelled in the centre, white, smooth, whorls numer- 

 ous, rather flattened, angular at the suture, aperture 

 small, columella with two plaits, outer Up thin. 



A. Adams. 



Hab. Feejee Islands. 



A very lengthened species, with slightly flattened 

 whorls. 



Species 35. (Fig. a, b, Mus. Cuming.) 

 Pyramidella nitidola. Pyr. testd parvd, albd, sub- 



October, 1865. 



