176 CARRIE I. WOOLSEY. 



Plate I. 

 Jamaicana fiava n. sp. Caudell. 



In polar views; of spermatogonia! metaphase figures, the number of chiomosomes 

 in both individuals is thirty-five. Chromosomes are paired and numbered ac- 

 cording to size, 18 being the single accessory. 



Figs. 1-4. Polar view of spermatogonial metaphase of individual No. 589. 



Figs. 5-8. Polar view of spermatogonial metaphase of individual No. 588, 

 showing, A, the oddly related pairs of chromosomes (14's and i6's) in each figure. 



Fig. 9. Lateral view of spermatogonial anaphase. No. 588. 



Fig. 10. Polar view, first spermatocyte of individual 589. 



Fig. II. Lateral view of metaphase of first spermatocyte chromosomes 

 numbered according to size. Sex-chromosome going undivided to one pole. 

 Individual 589. 



Fig. 12. Prophase of second maturation division or interkinesis. 



