KEVISION OF THE KING SNAKES. 



123 



possible that its range may actually extend to the west coast of 

 Mexico, but the record here cited is too indefinite to bear any reliance. 

 It may be remarked as bearing upon the unreliability of this record 

 that there is also at the American Museum a specimen of lioTbrooki 

 (no. E4298) labeled ''West Coast of Mexico, Frank Trubaudt, 

 collector." 



Summary of certain structural characteristics of calligaster. 





Ventral 

 plates. 



Dorsal 

 blotches. 



1 



49 



"3 



Tail divided by 

 total length. 



Caudals. 



o 



i 



Locality. 





1 



i 



£ 



i 

 < 



i 



i 



> 



< 



<» 



a 



1 



a 



Texas 



19&-209 

 19&-213 

 195-214 

 201-212 

 195-214 



205.2 

 204.0 

 205.2 

 206.0 

 205 



61-69 

 57- 78 

 46-68 

 53-69 

 46-78 



65 

 68 

 57 

 60 

 62 



7.08 

 7.05 

 7.08 

 7.11 

 7.08 



9.33 

 9.40 

 9.23 

 9.22 

 9.28 



0.143 

 0. 121- . 137 

 .124- .150 

 .115- .135 

 .124- .149 

 .110 .125 

 .123 .143 

 .112- .145 

 . 123- . 1,50 

 .110- .145 



'6.'l28 

 .138 

 .123 

 .140 

 .122 

 .1.36 

 .126 

 .137 

 .123 



49-56 

 3Ji-52 

 49-57 

 41-48 

 46-56 

 40-47 

 44-53 

 42-46 

 44-57 

 38-52 



53 

 45 

 52 

 45 

 52 

 44 

 50 

 45 

 51 

 45 



Male... 

 Female. 

 Male... 

 Female. 

 Male... 

 Female. 

 Male... 

 Female. 

 Male... 

 Female. 



3 



Kansas 



3 



12 



St. Loiiis and vl- 

 cinity. 



Illinois and west- 

 em Indiana. 



Whole range 



9 

 15 



9 

 17 

 10 

 47 

 31 



Scale formulae of calligaster. 



Locality. 



25-27-2S- 

 23-21 



2&-23-21 



23-25-23- 

 21 



23-25-21- 

 19 



23-25-23- 

 21-19 



Total. 



Male. 



Fe- 

 male. 



Male. 



Fe- 

 male. 



Male. 



Fe- 

 male. 



Male. 



Fe- 

 male. 



Male. 



Fe- 

 male. 



Male. 



Fe- 

 male. 



Texas 





2 

 2 

 2 



1 



1 

 1 

 3 



1 



1 

 1 

 1 

 5 



1 

 2 

 3 



1 



1 

 2 

 1 

 1 



1 

 1 

 2 



1 



...... 



1 



7 



7 



14 



...... 



4 

 3 



4 



12 

 15 

 13 



4 



Kansas 



1 



9 



St. Louis and vicinity 



11 



Illinois and Indiana 





9 









Total 



1 



7 



6 



8 



7 



5 



5 



6 



29 



8 



44 



?S 







One male, Jasper County, Missouri, has the formula, 23-21-19-17-19. 

 One male, University, Mississippi, has the formula, 23-21-19. 



Variation and affinities. — The number of specimens and their dis- 

 tribution throughout the area inhabited by this form are entirely 

 inadequate for the demonstration or even detection of geographic 

 variations. The form appears to be very homogeneous throughout 

 its range. It is not unlikely, however, that large series of specimens 

 would reveal geographic tendencies or local differences that may not 

 now be even suspected. 



The accompanying tables of structural characters summarize the 

 situation as well as can be done with the material at hand. 



The table of scale formulae is built upon so little data that it can 

 do no more than suggest the likelihood that specimens from the region 

 186550— 21— Bull. 114 — -9 



