338 Anomalies of Pigmentation among Natives of Nyasaland 
" are intensified representations of a light-bellied quadruped, that we have to deal 
with a case of palaeogenic inheritance," a subject associated with the name of 
Sir J. Hutchinson. 
It will be found that 1 have set apart the Spotlings in which the penis only 
is affected as they form a special group owing to their great definition and 
owing to the little attention that has been paid to them. 
I have pointed out, as will be seen later, that the pathognomic feature is the 
very light "pink" colour of the affected areas and their sharp margins. 
My own working classification, therefore, is : 
(I) White skin, straw coloured hair, liquid blue iris with red reflex 
through pupil when examined with artificial light. 
(Ia) Cases as above showing spotty pigmentation of the skin. 
(II) As above but the iris light yellow or hazel, photophobia and 
nystagmus not always present. 
Reddish brown hair and skin, light brown irides. 
Complete 
albinos. 
Spotted 
albinos. 
Partial 
incomplete 
Albinism. 
Xanthism. 
Incomplete 
Albinism. 
Partial 
Albinism. 
(Ill) 
(IV) 
f (V) 
(VI) 
Skin light brown, not red ; hair dirty light yellow, not brown ; 
irides hazel. 
Piebalds. 
Spotlings. 
I (VII) Spotting of penis. 
II. Illustrations of Anomalies of Pigmentation. 
I shall now give notes of cases and discuss the group to which each belongs. 
Some cases of leucoderma are then described after which the relation of leuco- 
derma with albinism is discussed and the theories as to pathogeny of the con- 
ditions brought forward. 
The cases of albinism so far recorded from Nyasaland are as follows : 
A. 1. From Kayuni's, N. Nyasa, by Dr Davey (p. 145 Monograph). 
2. Charlie* of Chikulamayembe, N. Nyasa, by Dr Davey (p. 145 
Monograph). 
3. 4, and 5. Cases mentioned by Mrs Young of Karonga, N. Nyasa 
(p. 145 Monograph). 
* I have seen this case and would add to the description already given that the scalp hair of a light 
straw colour grows down over the forehead to the eyebrows. The whole of the back and limbs are 
covered with semicurved very light straw-coloured hairs. Irides light grey blue with a light orange, 
coloured pattern. Pupil black in daylight. Teeth irregular, ill-formed, and carious. The pedigree is 
given as Fig. 7 of Plate XXI, II 2 and II 4 were brothers, there are no other known albinotic members 
of the family. 
