122 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
AZOLIDA 
Genus Afolis Cuvier 
fZolis (Facelina) iodenea J. G. Cp. 
Mud flats at San Pedro. Identified by Prof. T. D. A. Coek- 
erell in 1901. In Dr. Cooper’s Geog. Cat. he lists this species 
as Phidiana iodinea from ‘‘Santa Cruz to San Diego.’’ Having 
no shells when adult, the Nudiabranchiata proper are not in- 
eluded in Dr. Pilsbry’s great work Manual of Conchology 
(Vol. XVI,) but as various forms of sea slugs are occasionally 
found in mud flats and under damp rocks a reference to them 
may be admissible. Fred L. Button, Esq., the well known Coii- 
chologist of Oakland, Cal., has listed a number of these inter- 
esting forms in his Systematic List of West Coast Shells— 
not yet published but a few copies have been distributed in MS. 
—The Doridide of Monterey Bay has been studied by F. M. 
MacFarland, Proce. Biol. Soc. Wash. Vol. XVIII, pp. 35-54. Dr. 
Wm. H. Dall describes a genus new to the Pacific Coast, Phyl- 
laplysia, in The Nautilus, Vol. XIV, pages 91-92. This was 
found on sea-grass, Vancouver Island. 
CLASS GASTROPODA. 
PLEUROTOMA 
Genus Drillia Gray 
Drillia moesta var. maculata var. noy. 
Pt. Fermin, Los Angeles County. 
Some years ago Dr. J. G. Cooper labelled this specimen 
Drillia torosa variety, and it is listed as such in my “* Annotated 
List of the Shells of San Pedro Bay and Vicinity,’’ (Proe. U.S. 
Nat. Mus. Vol. XV) page 208. The polished surface of this 
pretty shell—being more porcellanous than most of our Cali 
fornia Drillias—the ground work bluish white with a yellowish 
band around each suture, also appearing in the body-whorl, the 
whole shell dotted, or spotted, with tiny, distinct spots mark it 
a definite variety from the type. Being covered with brown 
spots gives the shell a much darker appearance than hemphilli, 
another porcellanous form. In form, this var. is hke moesta, 
or maesta, but the revolving ribs are more nodose, nearer like 
torosa, and less oblique; on the first three apical whorls these 
nodules are very faint and are not constant upon the body- 
whorl—disappearing upon part of it. As in moesta the ribs, 
or nodules, are lighter colored—showing the bluish white 
foundation. The suture is compressed and distinct and is tuber- 
culated as in moesta, in this respect differing from torosa. 
As the outer lip was broken—three specimens were collected 
