730 CLASS XVII. 



Iconogr., Mammif. PI, x. fig. i (known in early age only). These ani- 

 mals resemble the hedgehog, but are not able to contract themselves into a 

 ball. 



n 



Erinaceus L. Teeth (36), incisors ^, upper middle distant, 



7 — 7 

 lower procumbent, true canines none, molars -^ — = , true \\\ appear- 



4 — 4 ~ 



ance ^ — o, with crown square, tuberculate. Snout produced. 

 o — o 



Ears short, or moderate. Tail short. Body densely covered above 

 with spines, at the sides and below with bristles and hair, con- 



3_3 4_4 

 tractile into a ball. (Dent. form, by development i. ^ — ^ , p. ^ — ^ , 

 o_o 0—6Z—Z 



m. 5^^ = 36, Owen.) 



6—6 



Sp. Erinaceus europceus L., Buff, viii. PI. 6, Gubr. Iconogr., Mammif. PI. 

 lo, fig. 1 ; the hedgehog, le herisson, der Igel ; a nocturnal animal, living 

 on mice and insects, torpid in winter. Compare J. J, W^etter Erinacei 

 europcei Anatome, c. 4 tab. sen. Gottingse, 1818, 8vo; M. Seubkrt Sym- 

 bola ad Erinacei europcei Anatomen; accedunt Tab. 2 lith. Bonnse, 1841, 

 4to. The rolling up is effected by a strong cuticular muscle with thick 

 margins, which is able to enclose the body like a sac. — Compare F. Himly 

 Ueher das Zusammenhugeln des Igels, Braunschweig, 1801, 4to. 



Erinaceus auritm Pall., S. G. Gmelin Nov. Comm. Petrop. xiv. i, p. 

 519, Pallas, ibid. p. 573, Schreb. Sdugth. Tab. 163; in Southern Kussia, 

 Siberia and Tartary, at the Baikal sea, &c. A species occumng in Egypt 

 and formerly confounded with the preceding is Erinaceus hrachydactylus 

 Wagn., Erinaceus lihycus Ehkenb. * 



Compare on the rest of the species, besides Wagner, Sundevall Ofver- 

 sigt of sldgtet Erinaceus, Kongl. Alcad. Velensk. Uandl. 1841, pp. 215 — 239. 

 — Erinaceus heterodactylus Sdndev. from Sennaar, differs by a small rudi- 

 ment of thumb on the hind feet, without claw. 



With Erinaceus ought to be placed, though commonly referred to Cen- 

 tetes, the Tendrac of Buffon, xii. PI. 57, Centetes spinosus Desmar., 

 named improperly by Schreber and Gmelin Erinaceus setosus. Isid. 

 Geoffrot Saint-Hilaire forms from it his genus Ericulus, which in that 

 case should be placed between Centetes and Erinaceus. AVith the same 



4 

 entn-e number of teeth there are — incisors present. See IsiD. Geoffr. in 



GuER. Magas. de Zool. 1839, Mammif. PI. i — 4, — W. C. L. Martin 

 afterwards distinguished another genus, which he named Echinops, and 

 which, if it be sufficiently distinct from Ericulus, would seem to have one 

 molar less on each side in the upper and lower jaw, Sp. Echinops Telfairi 

 Martin, Trans, of the Zool. Soc. 11. pp. 249—256, PI. 46. I have not 

 myself investigated these animals. 



