OKLAHOMA ACADEMY OF SCIENCE i,^ 



shown by the teeth is distinctly greater than that of "B''; the 

 antlers in this case do not appear as a criterion of age. 



The comparison of "C" with "D" shows that "D" h.as e'ght 

 tines and a badly worn dental battery, while *'C" has twelve tines 

 and his dental battery is not badly worn. "C" is actually younger, 

 but has four more tines than "D." 



In the case of "E" and "F" the number of tines is the same, 

 i. e., three on either beam on each animal's head, but the premolars 

 of "E" are deciduous while the entire dental battery of "F" is 

 permanent. 



A spike "G," has deciduous premolors, first and second molars 

 in use and third just erupting; while the dental battery of "H" 

 is almost identical with that of "G," but "H" has three tines on 

 either beam. 



It will be seen from the foregoing comparisons of the number 

 of tines and of dental batteries that no correlation exists between 

 these two sets of facts, and therefore, there can scarcely be a 

 C'lrrelaiion of the luu-nber of tines with the age of a v,diite-tail deer, 



V. THE GENETIC EVIDENCE OF A MULTIPLE 



(TRIPLE) ALLELOMORPH SYSTEM IN BRUCHUS 



AND ITS RELATION TO SEX-LIMITED 



INHERITANCE 



J. K. Breitenbecher 



Tr^'r,! th;' Zu; .'i ^gical Laliora'cory of the University- of r)klahtrma. 

 Contribution No. 5, Second Series. 



Tiii:; i^aper concerns the origin and genetic behavior of three 

 l;'idy color mutations, Vvfliich have manifested themselves in my 

 cultures of the so-called "four-spotted cowpea-weevil," Bruchus 

 cjiiadriiiiaciilafiis, Fabr. The wild type (male and female) have 

 tan l;ody and elytral color. The first miutation observed was a red 

 body color dominant to the wild type. This mutation although it 

 was transmitted by both sexes regardless of the previous combina- 

 tion manifested a marked sexual dimorpliism ; the females appear 

 v.'itli red elytra and i^ody color but the males are of tlie wild 

 type (tan body and elytral color). The second mutant female wa;-, 

 black and was likewise sex-limited in beha\'ior because the fem^alc 

 in pure cultures were always black while the males were always of 

 the wild type (tan). Both sexes carried the same genes regardless 

 of the nature of the cross. Black was dominant to the wild tvpe 

 (tan) hue recessive to red. The tliird mutation to l;e con.irjtred in 

 this paper was a white femiale. 'After pure lines had been i:-< .kited, 

 it was discovered that the females had always a white bod)- and 



