^lUT ^e(e^ -tj Jtiuib 



J^alC^^i z-^Sumb 



Fig. I. — Various types of double monsters (from Wilder). These 

 are all strongly conjoined and consist of less than two complete individ- 

 uals. Note the inequality in size of the right-hand middle pair, the 

 median, partially double arms and legs in several of the twins, and the 

 symmetrical relations of the two individuals in all cases. 



