NO. 2295. NEW NORTH PACIFIC MOLLUSKS—DALL. 349 



worn, with a fine spiral striation which is sometimes feeble; the last 

 whorl has a marked keel at the margin of the base in most specimens, 

 but this region is frequently more or less rounded, and is generally 

 whitish with interrupted brown flecks, which painting occasionally 

 spr-eads over the upper part of the whorl; a white band in front of the 

 suture is common and on the base the white may be extended to a 

 brown area bordering the umbihcus; height, 6; diameter, 5 mm. 

 U. S. Nat. Mus. Cat. No. 47081. 



Type-locality, — Monterey, California. 



A variety is more elevated and acute, with a more pronounced keel 

 and narrower umbilical groove, which may take the new varietal name 

 of olla. U. S. Nat. Mus. Cat. No. 21G895. 



Type-locality. — Olga, Washington. 



This was formerly known to collectors on the Pacific coast as Lacuna 

 Ufiifasciata Carpenter, but the type-specimens of the latter in the 

 United States National Museum (Cat. No. 60675) are more acute, 

 elevated, and slender, pale above and below with a continuous dark 

 brown line at the keel; exactly the reverse of the present species, 

 which, when fresh, is dark above with a white or whitish line at tlie 

 keel, broken up by brown dots or flecks. 



LACUNA, new variety PUTEOLOIDES (Carpenter MS.). 



Tliis form is represented in the collection by specimens from Lobitas, 

 CaUfornia, collected by Doctor Stearns and labeled by Doctor Car- 

 penter (No. 46984). The only difference between it and the typical 

 L. porrecta, to which Doctor Carpenter allied it as a variety, appears 

 to be a considerabb/ narrower pillar and consequently sharper and 

 narrower umbilical groove in the variety. As far as I am able to 

 discover Doctor Carpenter did not pubhsh the name. 



Genus BOETICA Dall, 1918. 



Shell small, sohd, subconic, few whorled, umbihcate, a groove at 

 the commissure of the outer hp and body, a shallow sulcus at the 

 anterior end of the pillar hp, the aperture without denticulation, the 

 lip not reflected. 



Type. — Boetica vaginata Dall. 



BOETICA VAGINATA Dall, 1918. 



Shell small, sohd, conical, white, smooth except for faint incre- 

 mental hues, of about five rapidly enlarging whorls including a minute 

 subglobular smooth nucleus; suture distinct, not deep; base rounded, 

 aperture subovate, a distinct sharp groove in the subsutural callus, 

 the outer lip simple, thick; the body with a thick coat of enamel 

 curving into the concavely arcuate pillar lip ; umbihcus perforate, the 

 area bounded by a thickened spirally striated ridge parallel with tlie 



