from the West Coast of North America, 397 



tremate coiitinuo, valde calloso ; labrb sinuato. Long. '215 long, 

 spir. -13, lat. '09, div. 40°. 



Hab, Sta. Barbara, 1 specimen [Jewett), 



Preeminent for aberration among the distorted Eulimidse. 

 A second specimen occurred from an uncertain source. 



Opalia buUaia. 



0. testa minora, alba, subdiaphana, turrita, graciii ; marginibus spirse 

 subrectis ; tota superficie minutissime et creberrime spiraliter 

 striolata ; vertice nucleoso declivi, celato ; dein anfr. ii., globosis, 

 radiatim baud sculptis ; dein v. normalibus, planatis, suturis vix 

 impressis ; lirulis radiantibus circ. xxvi., haud nisi in anfr. primis 

 expressis, circa basim irregulariter rotundatam ad axim continuis ; 

 serie bullularum suturalium anfr. primis e lirulis extantibus for- 

 mata, postea lirulis haud convenientibus, anfr. penult, circ. xvii., 

 planatis, super suturas parieti appressis, interstitiis haud infossis ; 

 basi subangulata, haud costata; apertura subovali, sinistrorsum 

 subplanata ; peritremate continue, calloso ; labro haud sinuato. 

 Long. 'S, long. spir. -21, lat. '09, div. 20°. 



Hah, Sta. Barbara, one specimen {Jewett). 



422. Cerithiopsis purpurea, 



C. testa compacta, haud graciii, marginibus spirse parum excurvatis ; 

 purpurea seu fusco-purpurea, circa peripheriam pallidiore ; anfr. 

 nucl. ? ii., Isevibus ; norm, vii., planatis, suturis impressis ; serie- 

 bus iii. nodulorum minorum supra costulas spirales minores, ad 

 intersectiones costularum radiantium circ. xxiii., lineis fere rectis, 

 ad suturas interruptis, spiram ascendentium sitis ; interstitiis im- 

 pressis, quadratis ; costulis suturalibus ii. haud nodulosis ; basi 

 rotundata, antice lirulis paucis expressis inter eas et costulas su- 

 turales vix sculpta ; apertura subquadrata ; columella torta, emar- 

 ginata. Long. "29, long. spir. '19, lat. '1, div. 20°. 



Hah. Sta. Barbara [Jewett); Monterey, San Diego [Cooper). 

 423. Cerithiopsis fortior. 



C. testa C.purpurece simili, sed sculptura multo fortiore, basi pallida; 

 seriebus nodulorum spiralibus testa adolescente ii., postea iii. ; costis 

 radiantibus circ. xiii., interstitiis magnis ; costis suturalibus validis, 

 subnodosis; costa basali valida. Long. '3, long. spir. '2, lat. 'll, 

 div. 26°. 

 Hah, Sta. Barbara, 1 specimen [Jewett), 



439. Marginella suhtrigona. 



M. testa M. Jewettii simili, sed multo curtiore, latiore ; antice valde 

 angustata, postice valde tumente ; labro postice minus prolongato ; 

 phcis iv., validioribus, parietali una. Long. '14, long. spir. '01, 

 lat. -11, div. 130°. 



Hah. Sta. Barbara [Jewett), 



