-IMI-I LOPS1S. 



impo.-sihle td reconcile Sowerb\ '> Inures \vitli tliese .-lid Is. More- 

 over, So werby described his species too briefly, and simultaneously 



propo-ed two specific names lor it. 



Moricand h:i<l liccn incoiTcctly informed by Ferussae that Sowerby 

 had nanicil this species brasiliensis," and therefore attributed the 

 name to that author. 



S. OKTISA (Sowerhy). PI. (I-J. tijrs. 86, 87. 



Shell ovate, corneous, longitudinally striated; -pire \ery short; 

 wliorls .'!, a little convex ; aperture ovate, oblique. Length to the 

 breadth as 2 to 3 (Soirerby). linr.il. 



Snr,-iii,'ii i>i-iifii So \\KKBY, (ieiiera of Shells, jit. ix. .-ecoiid pa ire of 

 text, Succii/i'ii. 



Siicciui'ti nbtusn SOWKKIIY, (Jenera of Shell.-, legend at foot of plate 



<if SHCI-I'I,,-,! ( l,s-2() or }*>> ; ,-ee Ann. Mai:. X. II. (I 1 ,), xiii, p. .'371). 



-IvKKVK, Conch. Sy-t., ii. p. S'.i, pi. LSI), f. 2 (reprinted from 



SouerbyV plate). Ilcli.r n/if/isd FKI;., Hist., jil. '.I 1>, f. .") (copy of 



So\\erli\'.- lijrure). Sitnpulopsis oblusa IK< K, Index, p. ICHI. 



Accoi-din^ to Sowerby's li^ur<'s, \\hich there is no reason to think 

 incon-ect, this -pecies has a decidedly more projectiiiir spii'e than >'. 

 brasilieiisis, and the outer lip is inserted much lower on the penul- 

 timate \\ horl. 



Souerliy called this species " N. nrata " in the text, " ^9. <'!>>ns<i " 

 on the plate. Pfeitl'er has cho>en to retain the latter, inorintr the 

 former name. As I can add nothing to our knowledge of the species, 

 it is not worth while to question the propriety <>f Pfeifl'er's fa\oritism 

 in dealing \vitb the twin-. 



S. 1:1 m\ [BEN8 ( .Moricand ). PI. C, 1, !i L 's. SS ? Ml), DO, '.11. 



Shell se mi-globose, \ery thin, olive-green or brown-tinted oli\e; 

 somewhat .-hininir 1ml not jrlossv. Surface do-elv and strongly cor- 

 niiraled, tiie corrugation rather regular, tliouirh sometimes folds split 

 or are intercalated. Spire conic. Whorls ."..',, moderately convex, 

 the la-t globose; siitui'e slowly doci'iidin^ ill front. Aperture 

 rounded-ovate, very oblique, the outer lip thin, its upper end inserted 

 at or near the periphery of the penultimate whorl; < olmnellar lip 

 verv thin and regularly arcuate. 



All. 1 I, diam. 1 I, lon^e-i ;i \j s of aperture PJ.-I, width !)..") mill. 



nf llnliiii, Ifrir.il ( Ulanchet. Anthony). 



