197 



of the adult are suggested only by some minute hairs on the ears and upon the 

 tip of the tail. Besides the black hairs which are scattered here and there 

 among the pale hairs of the head and shoulders, there are patches upon the face 

 in which the black hairs are alone developed. Between the eye and the ear is a 





.-.^., 



Fig. 3. 

 Mynnecobius fasciatus. 



Fig. 4. 



Mynnecobius fasciatus. 



Full face view of head of embryo 23 mm. R.V. Full face view of head of embryo 75 mm. 

 to show the characters of the rhinarium. maximum H.B. length to show characters 



of the rhinarium. 



patch of black hairs — the best developed hairs on the whole body — which make 

 a very conspicuous feature in the embryo at this stage. In front of the eye 

 is a similar, smaller patch; but this, at this stage, is involved in the folding 

 of the facial wrinkle behind the shortened muzzle. Scattered black hairs are 

 also present on the eyelids, black eyelashes are well marked, and all the true 

 sensory vibrissae are black. 



Fig. 5. 



Myrniecobius fasciatus. 



Left auricle of specimen 75 mm. 



maximum H.B. length. 



The skin of the older embryos is also pigmented, the whole animal being a 

 pale bluish-slate-grey, save where the pigment fails to be developed. The 

 muzzle, the head and face, with the exception of the large eyelids, are pale slate 

 coloured. The chin is deeply pigmented. The throat and the neck below and 

 behind the ear are free of pigment. The face behind the eye is pigmented 



