WEST AMERICAN MOLLUSKS—BARTSCH. 



171 



strongly curved, appressed to the base; parietal wall covered by a 

 thick callus, which renders the peritrenie complete. 



The type and another specimen, Cat. No. 334488, U.S.N.M., 

 were collected by Dr. C. C. Engberg in the Gulf of Georgia. The 

 type has five and one-half whorls and measures — altitude, 2.6 mm. ; 

 diameter, 1.5 mm. 



The present species, while ranging nearest to Barlecia subtenuis 

 Carpenter in our key, is readily distinguished from that form by its 

 much larger nuclear whorls and the stronger pittings thereof, resem- 

 bling in these characters Barlecia dalli and Barleeia hentleyi. It is 

 much more strongly spirally sculptured than Barleeia subtenuis and 

 has the aperture much smaller. Three additional specimens from the 

 same lot are in Doctor Engberg's collection. 



BARLEEIA OLDROYDI, new species. 

 Plate 13, fig. 9. 



Shell narrowly conic, light chestnut brown. Nuclear whorls one 

 and three-fourths, well rounded, marked by slightly retractively 

 slanting rows of exceedingly minute pits, which appear to be ar- 

 ranged also in spiral series. Postnuclear whorls almost fiat, ap- 

 pressed at the summit, marked by fine incremental lines and exceed- 

 ingly fine, closely spaced spiral striations. Suture only slightly con- 

 stricted. Periphery of the last whorl obsoletely angulated. Base 

 moderately long, moderately well rounded. Aperture moderately 

 large, oval; posterior angle obtuse; outer lip thin; the curved inner 

 lip joins the basal lip in a curve; inner lip appressed to the base for 

 a little more than half its length, the extreme anterior portion only 

 being free ; parietal wall covered by a thick callus, which renders the 

 peritreme complete. The summit of the last turn falls slightly be- 

 low the peripheral angle at the aperture ; operculum typical. 



The type, Cat. 32376, U.S.N.M., comes from Monterey Bay, Cali- 

 fornia. It has 6.1 whorls and measures — altitude, 3.3 mm. ; diam- 

 eter, 1.5 mm. 



The following additional specimens have been examined : 



ber of 



speci- 

 mens. 



Locality. 



211608 



126651 

 334449 

 271413 



' 32376 

 32362 



U.S.N.M. 



...do. 

 ...do. 

 ...do. 



...do. 

 ...do. 



2 Barkley Sound, Vancouver 

 I Island. 



4 i Mink Bay, Vancouver Island. 



1 Trinidad, California 



Little River, Mendocino 

 County, California. 

 12 Monterey, California 



3 do.'. 



1 One type. 



