REPORT ON ZOOLOGY, MDCCCXLIV. 



specimen by the want of the thumb and the colour, by the one-coloured flat 

 tail and distinctly annotated hairs upon the body. (5) Sp. nmyosariscus, 

 Licht. (6) Sp. musicus, Men. ; probably identical with Citillus xantho- 

 prymna, Benu. 



(b) Plautae adultorum in calcauco plus rninusve largiter pilosae ; auriculae 

 brevissimae ; cauda elongata, podario triple vel duplo longior, cum pilis 

 circiter 5 corporis longitudinis aecpians. (7) Sp. Parryi, Rich. (8) Sp. 

 Eversmanni, Brandt (Arctomys altaicus, Ev.), facies supra nigro albido et 

 femigineo mixta ; cauda disticha cum pilis corporis dimidiain longitudiuem 

 superaus. Body 9 \ li", tail with hairs 5 6". 



(c) Plantae pone digitorum basin et in calcaneo in adultis pilosae ; auriculae 

 breves, sed distiuctissime margiuatoe ; cauda mediocris vel submediocris \ vel 

 | corporis longitudinis. (9) Sp. gut tat us, Temm. (10) Sp. Citillus; of this 

 species the Reporter has obtained one specimen from Vienna, another from 

 Constantinople, and has heard of some having been procured in Bohemia. 



The doubtful species of the Russian Fauna are (11) Sp. intermedius, (?) 



2 specimens from Balkasch. See, preserving a kind of mean betwixt Sp. 

 crythrogeuys and brevicauda, (12 ?) Sp. jdcutenxis, mentioned by Grnelin, 

 and probably Sp. Eversmanni; (13 ?) Sp. le/tcostictus, founded, like the sub- 

 sequent ones, upon the varieties recorded by Pallas ; (14 ?) Sji. dauricus. 



Spennophili peregriui : (15) Sp. concolor, Is. Geoffr., probably identical 

 with Sp. fulvus ; (16) Sp. Ti- a nidi id; (17) Sp. Hoodii ; (IS) Sp. Richardsonii. 



Subgeuus II. Otospermopldlus. Molarium superiorum primus secundo 

 circiter triplo minor, couicus acumiuatus apice autice rotimdato laevigato, 

 postice parum oblique truncate et fossula minima impresso. Molarium 2, 



3 et 4, coronas fere subrhomboidae, facie inferiore parum augustatae, subse- 

 milunares et rotuiidatae. Plani niastucatorii plictv cent rales parum elevatae, 

 subparallclce, longitudiue iusequales, anteriore longiore, posteriore in crure 

 interiore impressa. Aiuiculae mediocres vel submediocres, circiter ^ capitis 

 lougitudinis. Cauda elongata. Plautse pone digitos pilosae. Here belong 19 25 

 Sp.Beechegi,Douglasii, maei'oun/x, lateralis, grammurus Clartdi stndimearicames. 

 It is not said how many species have been examined as to their dentition. 



Distinguished as is this work by Brandt upon the Sciurina for its solid 

 information, the article " Ecureuil," by Boitard, in ' Diet. Univ. d'Hist. Nat., 

 v, p. 207, has been, upon the other hand, superficially and carelessly pre- 

 pared. According to him, it must be very annoying to Systematists, who lay 

 such great stress upon the characters of the cranium, to learn that a form 

 such as that of the infra-orbital foramen brings the Sciurina into approxi- 

 mation with the Elephant. He is further of opinion that, after the Sciurina 

 have been studied in a more philosophic manner, the 104 species at present 

 comprised in that family will admit of being reduced to twelve or fifteen at 

 the very utmost. These assertions are a satisfactory proof of Boitard being 

 incompetent as yet to pass judgment upon points of Zoology. 



