THE NAUTILUS. 101 



nary open sailing boat, with a crew of three men and a single home- 

 made dredge. I should mention that 13 species were taken both 

 between tides and by dredging, so that the actual number of differ- 

 ent species taken in the three and one-half days was 136. 



In shore collecting, no attempt was made to collect the very com- 

 mon shells in quantity, or the numbers might have been swelled 

 indefinitely. In fact, I was looking more especially for Chitons, of 

 which I took seven species (183 specimens), and the smaller shells, 

 such as Volutella pyriformis Cpr. (40 specimens), and species of 

 Odostomia, which occurs commonly under rocks at low water. I 

 took also on this occasion a very fine series of Terebratdla trans- 

 versa Sby., which was found literally in thousands attached to the 

 rocks on the south side of the bay. 



Fine series of several Maeomas were dug in the sand, and a few 

 specimens of the curious Lepton rude Whiteaves were found attached 

 (as is their habit) to the central segments of specimens of Gebia 

 pugetensis, which we dug out of the muddy shores. 



When dredging, everything that came up w'as preserved, and the 

 fioer sand and mud boxed, and afterward dried and examined at 

 home. 



Of the Pelecypoda dredged, by far the commonest specimen was 

 Acila LyalU, of which at least a couple of thousand specimens were 

 taken. Another common bivalve was CrypLodon sericatus Cpr., 

 about 300 specimens. Venericardla boreaUs Conrad, Nucala tenuis 

 Motit., and Lucina tenuiscidpta Cpr., came next in order, about 

 100 of each being taken. 



Of rarer shells may be mentioned, Pede/i Vancouverensis Whiteaves 

 and hastatus Sby., Aviusiuvi caurinum Gould, Modiolaria kevigata 

 Gray and nigra Gray, Grenella decussata Mont., Cardium blandum 

 Gould, Fidvia modesta Ad. and Rue., Cryptodon fiexiiosus Mont., 

 Astarte Esqnimalti Baird, and nndata Gould, Psep)his Lordi Baird, 

 dementia subdiaphana Cpr ., Venus Kemierleyi Reeve, il/aco?u« yoldi- 

 j'onais Cpr., Cuspidaria pectinata Cpr., Kennerlia filosa Cpr., etc. 



Of the Gasteropoda the most abundant were, Nassa mendica Gould, 

 NitidellaGoaldiiGpr.,OlivellabaeticaCpr., Mesalia reticidcda Mlgheh, 

 and the deep-water variety of Margarita papilla Gould, of each of 

 which more than one hundred' specimens were obtained. 



Of rarer shells the following is a partial list: Drillia incisa Cpr., 

 and cancellata Cpr., MangiUa seidpturata Dall, Cancellaria circum- 

 cincta Dall, Velutina laevigata Linn., Tarhonilla torquata Gould, 



