786 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
name was adopted by Linneus in 1754, who describes the species and 
cites the descriptions and figures of both Catesby and Edwards, and refers 
to no others.* In the tenth edition of the Systema Naturze (1758), Linnzeus 
again describes his Scvwrus striatus, of which he says, “ Habitat in America 
septentrionali sub terra”, and cites only Catesby, Edwards, and Kalm. 
His diagnosis is changed to read “S. flavus striis”, ete., instead of “ Sciurus 
pallidus striis”, ete. In the twelfth edition of the same work, he gives its 
range as including Siberia, but his first reference is to his original descrip- 
tion of Sciurus. striatus (now further emended to read ‘S. flavus  striis 
quinque fuscis longitudinalibus”), already cited; his second is to G. Gmelin’s 
Sciurus minor virgatus,t which refers to a Siberian animal, Gmelin under 
this head giving the first description of the Europeo-Asiatic form of T. 
asiaticus. His other references are to Catesby, Edwards, and Kalm, 
whose descriptions refer exclusively to the Striped or Ground -Squirrel 
of the Atlantic States. Pallas, in 1778, described the Siberian animal under 
the same name (Sciurus striatus). Although his description is based wholly 
on Siberian specimens, he also refers to S. s¢réatus the American species, 
which he states he had not seen and knew only from authors, but from their 
accounts of it he considered it as evidently the same animal. Thus two dis- 
tinct species became thoroughly confounded under the same name. Gmelin, 
in 1788, made the first division of the group, separating the Asiatic and 
American animals as varieties. The former is his Sciurus striatus, a. asiati- 
cus—=Sciurus striatus Pallas, exclusive of his synonyms; the latter is his 
Sciurus striatus, 8. americanus=Sciurus striatus of Catesby and Linnzeus 
(Mus. Ad. Frid. and 10th ed. Syst. Nat.). In respect to the distribution of 
these forms, he says:—* Habitat a) in omni Asia boreali ad fluvios europeos 
Dwina et Kama usque, 7) in America septentrionali magis orientali minusque 
frigida ad novam Hispaniam usque.” The references to the Siberian animal 
are properly brought together under the head of aszaticus, and the references 
S. striatus or to S. asiaticus var. quadrivittatus cannot well be determined, From the length of the tail, it 
would seem more likely to be the latter. 
*The account in full is as follows :— 
““SCIURUS STRIATUS. 
“ Scrurus pallidus striis quatuor fuscis longitudinalibus. 
- “ Sciurus strictus Catesb. Car. 2. p. 75. t. 75. Edw. Ornith. 181. t. 181. 
“Habitat in AMERICA septentrionali. 
“MaGNitupo Mauris. Color pallidus, capite nigricanti, exeunte in fascias s. strias quatuor lon- 
gitudinales, distantes, ad caudam extensas, quarum intermedia latiores. PrpEs palmis, tetradactylis, 
plantis pentadactylis.”—(Mus. Adolphi Friderici Regis, 1754, p. 8.) 
t Act. Petrop. v, 1760, 344, pl. ix, fig. 1. 
