40 A NEW TYPE OF BRACHYPHALANGY IN MAN. 



194.9 cf L. S. A. This man emigrated to the United States and 

 Hves in San Francisco. He married a lady from western Norway and 

 has several children. Oiu" efforts to get information concerning this 

 individual and his children have hitherto led to no result. 



194.10 9 L. S. A. She died at the age of two years and nothing is 

 known concerning her hands. 



Sunmiing up, it will be seen that our information concerning the 

 members of this family is incomplete. Out of 10 members, we have 

 been able to examine only 5; of these, 4 are brachyphalangous of the 

 B-type and one is normal. In one more case we have obtained direct 

 information which indicates that the individual is brachyphalangous 

 of the B-type. In still another case, where we have obtained direct 

 information, the description of the hands is too imperfect to be of use. 



Line 9, V Generation. 



In this record of the V generation, line 9, only the families belonging 

 to the descendants of the individuals 194.2 cf , 194.3 cf, 194.5 9 , and 

 194.7 9 will be dealt with. They represent families 6, 7, 8, 11, and 12, 

 of the V generation, line 9; and family 1 of the VI generation. 



Sixth Family of V Generation. 



The B-type brachyphalangous 194.2 cf A. N. A. C, by his first 

 marriage with an unrelated wife, has a daughter, 1942.1 9 . 



1942.1 9 J. G. (b. July 7, 1883), living in Chicago, Illinois. A 

 photograph of her hands is given in fig. 27. Both from the dorsal and 

 from the volar surface a very striking shortening of the indices is 

 clearly seen. The distance between the second and third groove on 

 the inside of the index fingers is very much shorter than is the case 

 in normal hands. The affected fingers are straight. 



The radiographs (fig. 51) prove that the brachyphalangy is restricted 

 to the second phalanx of the indices only. The shortened phalanx 

 has two articular surfaces, but the form is markedly changed, the 

 whole bone being thickened and clumsy. The shortening is somewhat 

 asymmetrical, most pronounced on the right hand. The lengths of 

 II 2 and IV 2 are 8 and 25 mm. respectively on the right hand, 11 and 

 25 mm. on the left hand. The external aspect of the indices, as well 

 as the radiographs, makes it clear that we are dealing with a case of 

 B I-type brachyphalangy, the only certain one within line 9. 



This individual, who is heterozygous for the factor for brachypha- 

 langy, married O. P. H. and has had 3 children, 19421.1-19421.3 (p. 43). 

 Seventh Family of V Generation. 



194.2 cf A. K. A. G., by his second marriage with the unrelated, 

 normal A. E. M., has 4 children, 1942.2-1942.5. 



1942.2 9 G. E. G. (b. Jan. 4, 1908). Photographs and radiographs 

 of her hands show that she is normal. The lengths of II 2 and IV 2 

 are respectively 18 and 22 mm. on the right hand, 17 and 22 mm. on 

 the left hand. 



