638 INSECTIVORA 



JEriculus. 1 Dentition : i f , c , p f , m f ; total 36. Vertebrae : 

 C 7, D 17, L 6, S 4, C 9. The single species, E. setosus, is a 

 Hedgehog-like animal, having the whole upper surface and the 

 short tail densely covered with close-set spines. The facial bones 

 are much shorter than in any of the preceding genera, and the 

 first upper incisor is elongated, as in Erinaceus. Judging from 

 the slight development of the cutaneous muscles compared with 

 those of the true Hedgehogs, it is probable that complete involution 

 of the body does not take place. 



Subfamily Oryzorietinse. Tibia and fibula united ; testes near 

 urethra ; fur without spines. 



Microgale. 2 Dentition : i f, c ^,p f, m f ; total 40. This genus 



' "^" "^""-MT'T T*jg^_JV*^^' ^*"^'^ 



FIG. 295. Skull of Hemicentetes semisplnosus. x 2. (From Mivart, Proc. Zool. Soc. 1871.) 



includes M. longicaudata and M. cowani, both of which are small 

 Mouse-like species, the former with a tail double the length of the 

 head and body, and having 43 caudal vertebrae ; teeth like those of 

 Centetes ecaudatus, but, owing to the comparatively much shorter 

 muzzle, not separated by wide spaces, and the last premolar and 

 molar with internal basal processes. 



Oryzorictes. 3 Represented by two species, 0. hova and 0. tetra- 

 dactylus, the latter distinguished by the presence of only four digits 

 in the manus, the three inner having long laterally compressed 

 fossorial claws. The general form of the head and body of the 

 two species known is like that of a Mole. These animals burrow 

 in the rice-fields and do much damage to the crops. 



Family CHRYSOCHLORID^E. 



Skull conical, not constricted between the orbits, without post- 

 orbital process, but with well-developed zygomatic arch and tympanic 



1 I. Geoffroy, Ann. Sci. Nat. ser. 2, vol. viii. p. 60 (1837). 2 Thomas, 



Journ. Linn. Soc. Zool. vol. xvi. p. 319 (1882). 3 Grandidier, Rev. and 



Mag. Zool. 1870, p. 50. 



