ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA, 517 
Supplementary Report on the Present State of our Knowledge with 
regard to the Mollusca of the West Coast of North America. By 
Puiuip P. Carrenter, B.A., Ph.D.* Ki nef , 
Tue object of the present Report is (1) to correct the errors which have been 
obseryed in the first Report (*‘ Report &c.” 1856, pp. 159-368); and (2) to 
point out the fresh sources of information which have been rendered avail- 
able since that period. For convenience of comparison, the paragraph num- 
bers refer to those of the first Report in the corrections, and are continued 
from them in the addenda. In the bibliographical portion, the criticisms by 
the writer of this Report are inserted in [ ]; a distinction not always attended 
to in the former volume, in consequence of which erroneous names and loca= 
lities have been attributed to the reviewer, instead of to the authors quoted. 
22. Introduction—(Line 4 from bottom.) The river Willamette flows 
northwards (Gld.). 
23. Early Writers.—The only Californian shell described by Linneus is 
Turbo sanguineus,=T'. coccineus, Desh. ; vy. Hanl. Ips. Linn. Conch. p. 334. 
The types are too much worn to decide whether they came from the North 
Pacific or (as is more probable) from the Mediterranean. In Gmelin’s edition 
of Linneeus, Lipsie, 1788-1790,—which is, in great measure, a translation 
from a German work published a few years in advance | teste Hanley |,—the 
following species are assigned to the “‘ West Coast of America,” probably on 
the authority of Martyn :—page 3529, Murew foliatus: 3702, Patella pecten: 
3712, Patella calyptra. The last two seem exotic. 
Many West-coast species had found their way into English collections 
during the last century, at a much earlier date than was expected at.the time 
of the first Report. They were mainly derived from the voyages of Capt. 
Cook and other circumnayigators. Capt. Cook was accompanied by Solander, 
as naturalist, at the instance of Sir Joseph Banks. His shells passed into 
the hands of Mr. Humphrey, the dealer, at whose death the remainder, a 
thousand boxes, became the property of the elder Sowerby, and (in part) of 
Mawe [teste Hanley]. They took their chance of being figured or described 
by the early conchologists. The localities are (as might be expected) often 
interchanged, but have been quoted by later authors, who have not thought 
fit to avail themselves of more correct sources of information. 
The first accurate delineations are by Thomas Martyn, in his ‘ Universal 
Conchologist,’ London, 1784. Those who only know this book from Chenu’s 
reprint, Paris, 1845, can form but a poor idea of the exquisite beauty of the 
original work. Of this, very few copies are accessible ; but it may be consulted. 
at the British Museum, the Royal Society, and the Royal College of Surgeons. 
“Te ares s Patella tramoserica, Mart. N.W.C.America, very rare. [N. Zealand. ] 
18 6 1. Patella calyptra, Mart. N.W. Coast of America, very rare. [Not 
identified : resembles Crep. adunca, without deck. Hanl. considers 
: it a HMipponyx, like australis. | 
31 8 4. Trochus inequalis, Mart. Friendly Isles, common. [Does not closely 
resemble the Japan and Vancouver species, =Dachypoma gibbe- 
rosum, Chemn. | 
22 10 1. Zrochus canaliculatus, Mart. N. Zealand, rare. 
83.10 2. Trochus annulatus, Mart. N. Zealand, very rare. 
34 10 3. Trochus costatus, Mart. St. George’s Sound, rare. [= Cualliostoma 
filosum, castaneum, ligatum, and modestum. | 
* In consequence of the expected arrival of fresh materials, this Report has been cor- 
rected and continued up to the period of going to press. 
Warrington Free Museum and Library, Aug. 1st, 1864. 
