THE NAUTILUS. 23 
Columbella californiana Gask. One living specimen taken 
from root of kelp washed ashore in storm. Common under 
rocks at Waterfall. 
Amphissa corrugata Rve. Common on rocks near low tide 
line. 
Amphissa versicolor reticulata Dall. Abundant 15-20 fathoms. 
Purpura foliata Mart. Rather common on rocks near low 
tide line. Most specimens on Forrester Island are much worn 
by heavy seas. 
Boreotrophon stuarti Smith. Boreotrophon tenuisculptus. Cpr. 
Both of these forms dredged occasionally in various depths, the 
latter the most plentiful. 
Boreotrophon pacificus Dall. Occasional on rocks near low tide 
line, much more abundant at waterfall. — 
Ocinebra interfossa Cpr. Ocinebra lurida aspera Baird. Fairly 
common on rocks near low tide line. 
Thais emarginata projecta Dall. Locally on rocks well up to- 
ward high tide mark. Extremely variable in color, running 
from gray through brown, purple and green into yellow and 
red. Practically all seem to have drawn-out spire typical of 
this form. 
Thais lima Mart. Thais canaliculata Ducl. Both these species 
are common on the rocks near low tide line. The former is the 
more gregarious and appears to favor the smoother rocks, while 
the latter is more scattered and is found mostly among short 
moss or in mussel beds. JT. lamellosa Gmel., abundant in in- 
side waters, apparently does not occur on Forrester Island. 
Epitonium wroblemski Morch. LEpitoniwm pluricostatum Dall. 
Both dredged at various depths, the former common, the latter 
rare. 
Epitonium gronlandicum Perry. Only noted from fragment 
dredged. 
Epitonium indianorum Cpr. LEpitonium columbianum Dall. 
Epitonium catalinae Dall. The first dredged quite commonly in 
25-60 fathoms. The latter two taken in about same depths but 
much less frequently. 
Melanella micans borealis Bartsch. Melanella macra Bartsch. 
Melanella tacomaensis Bartsch. Four specimens of the first, 
