CLASS GASTROPODA 
207 
Margarites inflatula Dali, 1920 
Supplementary Report, British Association for the Advancement of Science, 653, 1864. 
New name for Margarita inflata Carpenter. 
Thin, whorls very swollen; sculpture very fine; spiral hollow inside 
keeled umbilicus. (Carpenter.) 
Type in United States National Museum. Type locality? 
Range. Vancouver Island, British Columbia, to Puget Sound. 
Margarites lirulata Carpenter, 1864 
Plate 101, fig. 1 
Supplementary Report, British Association for the Advancement of Science, 653. 
Proceedings, Philadelphia Academy of Natural Sciences, 61:1864. Tryon and 
Pilsbry, Manual of Conchology, 11:296; PI. 65, figs. 81, 82, 87. 
Small; operculum smooth; 2 sharp principal riblets on spire; outline 
variable. ( Carpenter.) 
M. t. parva, cineracea, tenus, tumentiore, nacreo rosaceo; anfr. v. 
plerumque subdepressis, suturis distinctis; interdum purpureo-fusco pallide 
maculata; lirulis acutis spiralibus haud elevatis, supra valde distantibus, in 
spira ii., circa basim rotundatum circ. viii.; apertura subquadrata; umbilico 
magno, infundibuliformi, angulato; interstitiis lirularum laevibus, seu ab 
increments epidermidis decussatis: operculo tenuissimo, pallido, sub- 
planato, suturis distinctis. Long., .18; long, spin, .07; lat., .2; div. 80°. 
Shell umbilicate, globose-conical, solid, lusterless or slightly shining, 
purplish, unicolored, or with large radiating white patches above, or around 
the periphery, or spiral darker lines, or spiral articulated lines. Surface 
either with (1st) a few (2-4) strong lirae above, their interspaces smooth, 
the base with about eight concentric lirulae, or (2d) more numerous nar¬ 
row irregular lirulae above, those of the base still smaller, or (3d) the 
spiral sculpture obsolete, surface smooth or nearly so above and beneath. 
The spire is more or less elevated; apex obtuse; suture impressed, some¬ 
times subcanaliculate; body-whorl convex beneath; aperture oblique, oval- 
rhomboidal, very brilliantly iridescent within, but the acute peristome has a 
rather broad marginal band of opaque white; columella simple; umbilicus 
tubular, with incremental striae within. (Tryon and Pilsbry, Manual of 
Conchology.) 
Type in United States National Museum. Type locality, Puget Sound. 
Range. Port Etches, Alaska, to San Diego, California. 
[809 1 
