CLASS GASTROPODA 
37 
Diaphana brunnea Dali, 1919* 
Plate 2, fig. 15 
Proceedings of the United States National Museum, 56:299. 
Shell small, reddish-brown, thin, with a small subglobular nucleus and 
about three whorls, separated on the flattish summit by a rather deep 
suture; the last whorl rather large, swollen, widest in front; surface 
smooth; aperture not quite as long as the shell, narrow behind, expanded 
in front; outer lip thin, nearly straight, rounding into the pillar lip, which 
is reflected over but does not close a narrow umbilical chink; inner lip 
thinly glazed, the axis not gyrate. Height of shell, 5; diameter, 3.5 mm. 
(Dali.) 
Type in United States National Museum, No. 208718. Type locality, 
Harbor of St. Paul, Kadiak Island, Alaska. 
Range. Kadiak Island, Alaska. 
* In Marine Shells of Puget Sound and Vicinity, I. S. Oldroyd, March 1924, the 
writer placed by mistake the description of Scaphander willetti Dali under Diaphana 
hrunnes Dali. 
Diaphana californica Dali, 1919 
Plate 2, fig. 12 
Proceedings of the United States National Museum , 56:299. 
Shell translucent and whitish, thin, the brown soft parts showing 
through, subcylindric, the nucleus minute, globular, with about three 
subsequent whorls; the spire blunt with the whorls rounded narrowly 
above a deep suture; surface except for faint incremental lines, polished; 
aperture as long as the shell, posterior sulcus small, outer lip thin, sharp, 
straight, axis imperforate, pillar lip thin, body hardly glazed. Height, 
4.5; diameter, 2.5 mm. (Dali.) 
Type in United States National Museum, No. 130561. Type locality, 
Long Beach, California. 
Range. San Pedro, California, to South Coronado Island, Mexico. 
Diaphana globosa Loven, 1846 
Index Molluscorum Scandinaviae, 11. Mollusca regionis arcticae Norvegiae, PI. 18, 
fig. 4. 
T. perforata, tenuissima, hyalina, epidermide tecta, subglobosa, postice 
leviter, angustata, truncata; anfractibus spirae 2-3, sutura canaliculata 
distincti; apertura; obpyriformis, antice, postice sinum angustum prae- 
bens; labrum sub angulo obtuso abiens, dem deflaxum, leviter impressum, 
antice large arcuatum, productum; columella subrecta, leviter recedens, 
vix reflecta; umbilicus parvus subobtectus. Long., 4 mm. (Loven.) 
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