50 Hereditary Syndactylhm and Polydaetylism 



III. ]0. Alfred, affected, webbed fingers on both hands, and 6 toes 

 on each toot. Married III. 19, died a year or so after marriage, issue 

 IV. 32. 



III. 11, 12, affected, webbed fingers and extra toes. 



III. V?). Elias Jones, affected, married, no issue. 



III. 14. Alfred, affected, supposed to be living in Manchester, issue 

 unknown. 



III. 16. David, unaffected, dead. 



III. 15. Elizabeth, married III. 20 (Foster), lives in Salford, issue 

 IV. 8.3—36. Has webbed 3rd and 4th fingers on each hand, the right 

 hand being marked!}' deformed, and 6 toes on each foot, 4th, 5th, 6th 

 being webbed. 



Right Hand. The bony phalanges of the 3rd finger are normal in 

 length and shape, but the terminal phalanx is bent towards the 4th 

 finger at almost a right angle, and there it unites with terminal 

 phalanx of its webbed fellow forming a bony union. The 4th meta- 

 carpal is much shorter than its fellows. The j^roximal phalanx of the 

 4th finger is also shorter than normal, and is very irregular in shape, 

 having a bony process projecting towai'ds the head of the 3rd metacarpal. 

 The middle phalanx is normal in shape and size, while the terminal 

 phalanx is short, and joined by bony union to the terminal phalanx 

 of the 3rd finger. Sesamoid bones present at 1st, 3rd and .5th meta- 

 carpo-phalangeal joints. 



Left Hand. The abnormal bony features are similar to those on the 

 right hand but much less in degree. The terminal jjhalanx of the 3rd 

 finger is bent towards that of the 4th, and there fuses with it, forming a 

 bony union which is so far incomplete as to leave a foramen in the 

 centre of the union. The other principal abnormal feature is the 

 misshapen proximal phalanx of the 4th finger which has a small bony 

 process projecting towards the proximal phalanx of the 3rd finger. 

 Sesamoid bones present only at 1st, 2nd and 5th metacarpo-phalangeal 

 joints. 



Right Foot. This shows an abnormal 5th metatarsal bone having 

 two heads, an articulating head and a non-articulating head. The 

 articulating head lies to the inner side, and on it rests the articulating 

 base of the 5th proximal phalanx. This phalanx is made up of a 

 broad base and two heads on which rest two irregularly shaped 

 phalanges of the 5th and 6th toes. 



Left Foot. The abnormal bony condition of this foot resembles that 

 of the right foot with the exception that the bony union between the 



