76 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
riphery of the last whorl obscurely angulated. Base moderately long ancj 
moderately rounded, marked like the spire. Aperture rather small, oval; 
posterior single, obtuse; outer lip thin; the basal and inner lips meet in 
well-rounded curve; inner lip appressed to the base, except at the anterioi' 
third, which is free; parietal wall covered by a thick callus, which renders 
the peritreme complete; operculum typical. Altitude, 2.5; diameter, 1.3 
mm. (Bartsch.) 
This species closely resembles Barleeia oldroydi. It is, however, uni** 
formly smaller, with a decidedly smaller aperture. (Bartsch.) 
Type in United States National Museum, No. 15558. Type locality, 
Lower California. Collected off the back of a Haliotis. 
Range. Mendocino County, California, to Lower California. 
Barleeia sanjuanensis Bartsch, 1920 
Proceedings of the United States National Museum, 58:170; PI. 13, fig. 3. 
Shell broadly conic, chestnut brown, except the nuclear whorls, which 
are pale brown. Nuclear turns two, well-rounded, marked by numerous 
rather strong pits, which are arranged in axial and spiral series. Post- 
nuclear whorls very slightly shouldered at the summit, well-rounded, 
marked by numerous rather coarse, incised, spiral lines. Periphery ob¬ 
scurely angulated. Suture well-marked. Base well-rounded, marked, 
like the spire. The summit of the last turn bends decidedly downward 
behind the aperture. Aperture subcircular; posterior angle decidedly 
obtuse; outer lip rather thick; inner lip strongly curved, appressed to the 
base; parietal wall covered by a thick callus, which renders the peritreme 
complete. Latitude, 2.6; diameter, 1.5 mm. (Bartsch.) 
Type in United States National Museum, No. 334488. Type locality, 
Puget Sound. 
Range. San Juan Islands. 
Barleeia coronadoensis Bartsch, 1920 
Proceedings of the United States National Museum, 58:173; PI. 13, fig. 5. 
Shell ovate, white. Nuclear whorls two and a fifth, well-rounded, 
marked by numerous pits, which are arranged in curved axial lines as well 
as in spiral series. Post-nuclear whorls, strongly rounded, appressed at the 
summit, marked by feeble incremental lines and exceedingly fine spiral 
striations. Suture rather constricted. Periphery of the last whorl strongly 
rounded. Base moderately long and well-rounded. Aperture large, broadly 
ovate, rather effuse at the junction of the base and outer lip; posterior 
angle obtuse; junction of the inner and basal lip well-rounded; outer lip 
thin; inner lip well-rounded, reflected over and appressed to the base 
except at the extreme anterior portion where it is free; parietal wall 
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