354 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.47. 



Female. 



1 Leiden Museum. 

 SCALE FORMULA 19-17 (-IV). 



SCALE FORMULA 19-17-15 (—IV, —III). 



SCALE FORMULA 19-17-15-13-15 (—IV, —III BT. —VI LT., —X, -l-X). 



No. 50275, female, ventrals 150. On the neck the IV row on 

 the right and the V row on the left are suppressed at the level of the 

 seventh ventral. On the body the IV row is suppressed on the right 

 at the seventy-third, and the left at the seventy-fifth ventral, leav- 

 ing 17 rows; the III row on the right at the one hundred and fifth, 

 and the VI row on the left at the one hunflred and fifteenth ventral 

 are suppressed, leaving 15 rows; the row on either side of the median, 

 the X, is suppressed on each side at the one hundred and tenth ven- 

 tral, leaving 13 rows; these 13 rows continue to a little before the 

 end of the body, when the X row reappears, on the right at the one 

 hundred and thirty-eighth, and on the left at the one hundred and 

 thirty-ninth ventral. 



