7SI5 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 



name was adopted by Linnaeus in 1754, who describes the species and 

 cites the descriptions and figures of both Catesby and Edwards, and refers 

 tn no others.* In the tenth edition of the Systema Naturae (1758), Linnaeus 

 again describes his Sciurus 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.Jlavus striis", etc., instead of "Sciurus 

 pallidas striis", etc. 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. Jlavus striis 

 quinque fuscis longitudinalibus"), already cited ; his second is to G. Gmelin's 

 Sciurus minor rirgatus,\ 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. striatus 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 =z Sciurus striatus Pallas, exclusive of ' his synonyms; the latter is his 

 Sciurus striatus, ft. americanus— Sciurus driatus of Catesby and Linnaeus 

 (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 europasos 

 Dwina et Kama usque, /?) 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 asiaticus, and the references 



S. striatum or to S. asiaticus var. quadrivittatus caunot 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. 

 "Sciurus pallidas striis quatuor fuscis longitudinalibus. 



" Sciurus slrir.tus Cat«sb. Car. 2. p. 75. (. 75. E<l\v. Ornith. 181. (. 181. 



" Habitat in AMERICA septentrionali. 



" Magntttjdo Muris. Color pallidas, capite nigricanti, exeunto in fascias s. striae quatnor Ion- 

 gitmliuales, distantes, ad caudam extensas, quarum intermedia^ latiores. Pedes paknis, tetradactylia, 

 plant is pentadactylis." — (Mus. Adolphi Fridcrici Regis, 1754, p. 8.) 



t Act. Petrop. v, 1760, 344, pi. ix, fig. 1. 



