CLASS GASTROPODA 
25 
convexis, suturis distinctis; toto superficie sulcis subdistantibus coelata, 
punctis impressis seriatim dispositis, quarum 7-9, in spira monstrantur; 
basiovali; apertura latiore; labro acuto, antice sinuato; labio indistincto; 
plica acuta declivi juxta parietem, haud exstante; columella antice torta. 
Long., .2; long, spir., .06; lat., .09, poll. (Carpenter.) 
Shell oblong with conoidal spire; white with two broad ashy or brown 
zones. Whorls 5, convex, separated by impressed and narrowly channeled 
sutures. Surface sculptured throughout with spiral equidistant conspicu¬ 
ously punctate grooves, the raised intervals smooth except for a fine 
engraved line along the middle of each. Grooves on the body-whorl about 
26. Aperture two-fifths to two-thirds the length of the shell. Columella 
having a spiral fold above, obliquely truncated at base. (Tryon and Pilsbry, 
Manual of Conchology.) 
Type in United States National Museum. Type locality, Santa Cruz, 
California? 
Range. Monterey, California, to Magdalena Bay, Lower California. 
Fossil: Pleistocene, Santa Barbara, to San Diego, California. 
This was described as Tornatella punctocoelata by Carpenter. 
Acteon punctocoelata vancouverensis, n. subsp. 1927 
Plate 1, figs. 19, 20 
The shell is shorter and broader, and the spire is much lower than the 
typical species; sutures are not so distinct; color and sculpture much the 
same. So far as is known the typical species has not been reported from 
north of San Francisco, California. Length, 10; breadth, 6 mm. 
Type in Oldroyd Collection, Stanford University. Type locality, De¬ 
parture Bay, Vancouver Island, British Columbia, in 3 fathoms. 
Range. Known only from type locality. 
Figure enlarged twice. 
Acteon painei Dali, 1903 
Plate 1, fig. 18 
Proceedings of the Biological Society of Washington, 16:172. 
Shell with one smooth, polished, nuclear and three or more subsequent 
strongly sculptured whorls; apex sinistral, immersed; spire very short and 
blunt; body stout, ovate, slightly peripherally flattened; sculpture of 
strong, subequal, spiral riblets, covering the whole shell, separated by 
slightly narrower, coarsely punctate channels; outer lip sharp; pillar 
obliquely subtruncate in front, twisted, vertical, with a prominent plate¬ 
like edge, and a moderately prominent plait about midway of the exposed 
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