130 



CATHARINE LINES CHAPIN. 



larva, collected in September, 1913, contained several eggs. 

 The larva was nearly of adult proportions and presumably 

 would have undergone metamorphosis the following summer. 

 Fig. i, B, is from a drawing of the pair of gonads and kidneys, 

 made with an Abbe camera before imbedding. It reveals the 

 peculiarities of the glands when compared with Fig. I, A, which 

 is a drawing, at the same magnification, of a normal pair of 



!o 



FIG. i. A. Testes and kidneys of normal 48 mm. larva. B. Gonads and 

 kidneys of hermaphroditic 46 mm. larva. C. Ovaries and kidneys of normal 46 

 mm. larva. These gonads and kidneys are from larvae collected in September. 

 Ventral view, X 75. k = kidney, lo = largest ova, U = left testis, o = ova, 

 ov = ovary, rt = right testis, so = smaller ova, t = testis. 



testes and kidneys of a 48 mm. larva. The original of Fig. I, 

 B, being merely a hastily made outline drawing and the testes 

 having been very small, I noticed the hermaphroditic condition 

 only on careful study of the sections. 



A comparison of Fig. i, A and B, shows that, in the abnormal 

 specimen, neither testis is fully developed. The hermaphroditism 



