MISSING TYPE-SPECIMENS. 289 



Cricetodipus parvus Peale, 



U. S. Exploring Expedition, VIII, Mammalia and Ornithology, p. 53, 1848. 

 =Perognathus parvus (Peale). See Cassia, U. S. Exploring Expedition, Mam- 

 malia and Ornithology, p. 48, 1858. 



Tijpt -locality. — Oregon. Assumed to be The Dalles. See 

 Osgood, North Aiiier. Fauna, No. 18, pp. 34-36, September 20, 

 1900. 



Specimen should be in the Museum with the U. S. Exploring Expedition 

 material. Nothing is known of it; not even number can be traced. 



Mus vitiensis Peale. 



U. S. Exploring Expedition, VIII, Mammalia and Ornithology, p. 49, 1848. 

 = Mus musculus vitiensis (Peale) . See Trouessart, Catalogua Mammalium, p. 487, 

 1897. 



Tyjpe-locality . — Fiji Islands. 



Specimen should be in the Museum, with other U. S. Exploring Expedition 

 material. It is probably No. 3731, an old mounted specimen that can not now 

 be found. Catalogued December 20, 1859. 



Mus peruvianus Peale. 



U. S. Exjiloring Expedition, VIII, Mammalia and Ornithology, p. 51, 1848. 

 =?Oryzomys peruvianus (Peale). See Trouessart, Catalogus Mammalium, j). 528, 

 1897. 



Type-locality. — Callao, Peru. 



The specimen should be in the IMuseum, with other U. S. Exploring Expedition 

 material. It is probaVily No. 4955, an alcoholic, entered in the catalogue May 

 no, 1S61, as yius muarulus from Callao, which can not be found. 



Arvicola montana Peale. 



r. 8. Exploring Expedition, VIII, Mannnalia and Ornithology, p. 44, 1S48. 

 = Microtus montanus (Peale). See Trouessart, Catalogus Mammalium, p. 5(>3, 

 1897. 



Peale says, ''Our specimen was obtained on the 4th of October, 

 near the headwaters of the Sacramento River, in California,*' 



The specimen can not be found. Its nundjer is not known. 



Arvicola (Pitymys) pinetorum quasiater Coues. 



Proc. Acad. Nat. Sci. Phila., 1874, p. 191, December 15, 1874. 

 = Microtus quasiater (Coues). See Miller, North Amer. Fauna, No. 12, }>. •>(), 

 July 23, 1896. 



3524. Skin. Jalapa. Vera Cruz, Mexico. Collected b}- R. 

 Montis d'Oca. Catalogued March 18, 1859. 



The specimen can not found. There is no record of a skull. Dr. Is. Coues 

 says he had not seen the skull. 



Type designated by numlier. 



45336—08 19 



