from the West Coast of North America. 7 



mamillato ; anfr. norm, iv., convexis, suturis impressis, in medio 

 spirse obtusangulatis ; costis radiantibus circ. xii., acutioribus ; cos- 

 tula spiral! circa angulum, inter costas subobsoleta ; tota superficie 

 tenuiter spiraliter crebrisulcata, sulculis sub lente siepius bifidis ; 

 apertura pyriformi, canali longiore, recto, aperto ; labro acuto, 

 postice conspicue sinuato ; columella baud contorta ; labro obso- 

 lete. Long. -35, long, spir, '18, lat. '13, div. 30. 



Hab. Sta. Barbara (Jewett). 



Myurella simplex. 



M. testa rufo-cinerea, miuore, minus tereti, epidermide tenui ; 

 anfr. xii., planatis ; fascia suturali valida, nodosa, tuberculis ovali- 

 bus crebris validioribus (anfr. penult, circa xv.) ornata ; testa 

 adolescente costulis radiantibus, postea evanescentibus ; striolis 

 antice et postice spiralibus, circa peripheriam ssepe obsoletis ; 

 basi rotundata ; canali brevissimo, alte emarginato ; carina supra 

 canalem acuta, columellnm plicante ; labro acuto, vix undato. 

 Long. 1-03, long. spir. '76, lat. '27, div. 20. 



Variat tuberculis subobsoletis. 



Hab. Sta. Barbara (Jewett) ; S.Pedro (Cooper). 



Odostomia inflata. 



0. te.*i majore, tenui, pallide cinerea, epidermide cinerea induta; 

 vert. nucl. subito immerso ; anfr. norm, iv., rapidissime augenti- 

 bus, subplanatis, suturis impressis; tota superficie minutissime et 

 confertissime spiraliter striolata ; umbilico nullo ; basi et apertura 

 valde elongatis ; labro acuto ; labio tenuissimo ; plica acuta, trans- 

 versa, parietem attingente ; columella valde arcuata, antice effusa. 

 Long. -26, long. spir. -09, lat. '14, div. 60. 



Variat spira elatiore. Long. '24, long. spir. "11, lat. *13, div. 45. 



Variat quoque striolis subobsoletis. 



Hab. Sta. Barbara (Jewett) ; Farraleone Islands, in cavities, on 

 Haliotis (teste R. D. Darbishire) ; near San Francisco (Rowell) ; 

 Neeah Bay (Swan). 



Chemnitzia crebrifilata. 



C. testa satis tereti, subalbida, baud regulari ; anfr. nucl. ii., beli- 

 coideis, decliviter sitis, margines spirse parum excurvatos paullum 

 superaritibus ; norm, viii., quorum primi subrotundati, ultimi vix 

 planati ; suturis valde distinctis ; cost. rad. circ. xxiv., subrectis, 

 acutioribus, angustis, interdum attingevitibus, anfr. ultimo cre- 

 brioribus minus expressis, circa basim prolongatam baud subito 

 evanescentibus; lirulis spiralibus, in spira circ. viii., rotundatis, 

 expressis, anfr. ult. supra costas subnodulosis, circa basim crebri- 

 oribus ; peritremate continuo ; columella vix torta, baud plicata ; 

 labio distincto.. Long. *22, long. spir. *17, lat. '07, div. 18. 



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



285 



