34G Anomalies of Pigmentation among Natives of Nyasaland 
This child, aged 8 years, can, I think, be taken with Mateuta and his mother 
and might be placed in the series as intermediate between the mother and her 
child. Together they seem to illustrate simply a delay in normal pigmentation, 
a phenomenon to which I do not think attention has been drawn, but one which 
must be taken into consideration when any attempt is made to theorise on the 
cause of albinism. 
Case 012. Moyichandi of Sangano, Blantyre, Tao. Pedigree, Plate XXI, 
Fig. 3. 
Moyichandi, aged 18 years (II 5), is the brother of a case (B 12) Sikumbiri 
(II 6) previously reported in the Monograph, Fig. 434. 
The skin is a light but " warm " reddish cafe-au-lait colour distinct from any 
normal native skin colour ; irides hazel ; no nystagmus. Hair light brown in 
colour, which on microscopical examination was found to contain fairly abundant 
granular pigment and a considerable amount of red brown diffuse pigment. 
Sikumbiri, a year younger than his brother, has a lighter tint of skin, not 
so red ; the irides are light hazel and nystagmus is present ; hair dirty light 
straw colour. Both have hair on body and limbs of a yellow colour. In these 
two brothers we see an excellent example of the connection between two grades 
of deficient pigmentation ; the elder I should class immediately as a case of 
Xanthism, whereas his younger brother must be placed as an intermediate 
between Classes II and IV. See Plate XVIII, Fig. 23. 
Case 013. Sawali of Ntiya Village, Mlumbi, Zomba ; Yao, 1911. Pedigree, 
Plate XXI, Fig. 9. 
Sawali, II 1 (for photograph see Plate XII, 1 and 2) and his younger brother, 
II 2, aged 13 and 5 years respectively, of whom the elder one only was seen, are 
said to resemble one another. Sawali seen in January 1911 ; hair of scalp from 
light yellow to brown, fairer on neck and at the edges of the hairy scalp ; eyebrows 
and lashes black, no hair on body, pubic hair black ; no albinotic characters in the 
skin, i.e. the skin is of a slightly lighter tint than the average native, but well within 
the limits of normal. Irides medium brown ; no nystagmus ; vision good. Teeth, 
all the incisors are serrated thus : ^ J[ J ; they have the appearance of 
having ill-developed enamel. 
Seen again two months later. He had in the meantime cut his hair very 
short, almost shaved, and allowed it then to grow again; the soft less-curled hair- 
on the temple is a mouse-brown colour, the newly grown, tightly curled wool of 
the scalp is of a yellow colour, becoming brown near the roots; scalp colour is 
the same as the skin. He states that he was born with a white skin which has 
darkened since. 
Individual hairs were found to vary in colour; some very light golden hairs 
were found microscopically to contain a yellow diffused pigment with very fine 
