354 U. S. P. R. Rs EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
naturalists, although the materials at our command are richer now than a few years ago, when 
Audubon and Bachman were unable to find a specimen in any museum of the United States. 
Several specimens collected by Dr. Suckley and Lieut. Trowbridge do not admit of any positive 
addition to the account given above, based on Mr. Peale’s specimen. I have heard of an Aplo- 
dontia from the mountains of California, probably the same species, but have not seen a speci- 
men. 
The name of Sewellel for this animal is not at present used on the norti:west coast, according 
to Dr. Suckley ; it is now called Showt’l, a word quite similar in sound to the old one. Lewis 
and Clarke, in describing it under this name, mention that the tail is always removed by the 
Indians in dressing, misled by the exceedingly rudimentary condition of fhis member. 
It is perhaps a question whether the true name of this species be not Aplodontia rufa, after 
Rafinesque. Although his description is incorrect, it was based on the Sewellel of Lewis and 
Clarke, which is unquestionably the Aplodontia leporina of Richardson. As, however, Rafinesque 
asserts positively that certain characters apply to his Anisonyx rufa, which really do not exist 
in Aplodontia leporina, we may be warranted in avoiding the use of his specific name for Rich- 
ardson’s animal. It may, perhaps, be well to repeat that Rafinesque bases his description 
entirely upon a partly erroneous interpretation of the article of Lewis and Clarke. 
List of specimens. 
_ 
3 Measurements. 
3 
2 [8 : anys 
<igeiiblah 1 5 F am i Oe 
EI 2 sil ¢ Locality. When col- | Whence and how ob- = Nature of | & = 3 z Collected by— 
ee pees 1 aiee lected. tained. 3 specimen. |S 3) 5 ue a 
= 6 E a s S ° i= 
= id et i 3 =) f= 4 el 
a | 5 € g = | =| 
Siig] 3 2 Ce ee i ES 
oS |S D fs) i | uel 
eeceeeleccess|eseses Puget’s Sound. ..+./ssseeeeee-eee-| Us S. Ex. Exped......./se+ee-| Mounted ....)eeesee/eeveee| 2-79 | 2.18 |sseceeseeeen ee: eee 
1966 | 2621 3 Steilacoom, W. T’..|..0.cccscccces Dr. Geo. Suckley...... 93 | Skin ........ 154260" locos checcvse] Cans une nasuh eet 
1965 | 2620] oO |........ 0,2 Rest pal ahaa went tele eee dons st. gece | dO: oe sn'o eee 13 jase] cqonoeaces aalscatee cayemeeeees ; 
RIB \acceca|assbeslesce uxoa DOss.ccen seas NOb4S Ss akine ss Goy. I. I. Stevens..... DLs) SHOn, ace vioncinnae'nsialepaccdhemenas les eine Dr. Geo. Suckley.. 
GEG | ccces|. rece Astoria, O. T...... June 15,1855 | Lt. W. P. Trowbridge..|...... ssUCivauasaevs ‘1S "]' ABO". coees leased Jas. Wayne........ 
