1904.] Allen, Mammals from Santa Maria, Colombia. 435 



respects entirely at variance with any of the phases of the 

 Santa Mart a squirrel. His description applies in a general 

 way very well to some phases of the body pelage of this animal. 

 But his account of the tail, the hairs of which, he says, are 

 always black at their origin and red at their extremity, and 

 that the tail, owing to the distichous arrangement of the hairs, 

 is much blacker on the posterior face than on the anterior, 1 is 

 entirely opposed to anything seen in the Santa Marta animal. 

 Besides, there is evidence that M. Plee's journey in Colombia 

 was up the Magdalena River. Schlegel says, in his 'Simiae' 

 (Mus. Pays Bas, VII, p. 184), under Ateles hybridus: "On 

 sait, par les observations du voyageur Roulin . . . que 

 ce singe est tres commun dans la valle'e du fleuve Madelaine 

 en Colombie. Les individus du Muse'e de Paris proviennent, 

 a T exception d'un seul, du voyage de Ple'e. Un des notres a 

 e'galement te recueilli par ce voyageur." And in his list of 

 specimens of this species he says : "i. Femelle a 1'age moyen, 

 voyage de Ple'e, Colombie, acquise en 1834 du Muse'e de Paris." 

 It is probable perhaps almost certain that the squirrels, 

 collected by M. Ple'e, on which Geoff roy founded his Sciurus 

 variabilis, came also from the Magdalena River in Central 

 Colombia, a very different region zoologically from the 

 Santa Marta coast district, and hence the squirrel named 

 variabilis would naturally differ from the Santa Marta form. 

 Indeed, it seems now safe to assume that the real type locality 

 of 5. variabilis is the Magdalena River of Colombia, at some 

 point quite remote from the coast, in the region inhabited by 

 Ateles hybridus, which we know is not found in the Santa 

 Marta region. 



1 8. Mus alexandrinus Geofjroy. Five specimens, Onaca, 

 Sept. 2, and El Libano (alt. 6500 feet), June 29 and July i. 

 Three out of the five specimens are more or less mixed with 

 the Mus rattus stock, only one being a normal M. alexan- 

 drinus. 



19. Mus musculus Linn. Three specimens, Taguaga, 



1 " La meTne remarque est applicable aux longs polls de la queue toujours noirs a leur 

 origine et roux a leur extre'mite'. Mais il re"sulte de la disposition distique de la queue 

 qu' elle est toujours beaucoup plus noire k la face poste"rieure qu'a 1'anterieure." Is. 

 ueofiroy, Mag. de Zool., 1832, Classe I, pi. 4, 5, 6, [p. 3J. 



