
TY  - JOUR
A1  - Yunis, E 
A1  - Ramirez, E 
A1  - Cayon, J 
A1  - Hernandez, J 
T1  - The chromosomes of the Didelphids Caluromys Lanatus Illiger and Chironectes minimus Zimmerman (Marsupialia : Didelphidae)
JF  - Australian Journal of Zoology
JO  - Aust. J. Zool.
Y1  - 1972
VL  - 20
IS  - 3
SP  - 265
EP  - 269
KW  - 
UR  - https://doi.org/10.1071/ZO9720265 
N2  - A chromosome study of the didelphiids C. lanatus and Ch. minimus is presented. The karyotype of C. lanatus is very similar to that of Marmosa robinsoni but differs, in so . far as the X chromosome is concerned, from that of C. derbianus. As an explanation for the karyologic difference between the two Caluromys species we postulate a peri- centric inversion of the X chromosome passing from the acrocentric form of C. derbianus to the submetacentric of C. lanatus. The chromosomes of Ch. minimus (2n = 22) are all acrocentric and have a strong similarity to those described in the genera Didelphis and Philander, but the sexual chromosomes are larger and have an XY form of sexual complement. 
ER  -

