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Part III. — Fifteenth Annual Report 



the ducts of the cod. The duct from the posterior portion was simple, 

 without any appearance of a valve or longitudinal ridges. 



Mr H. C. Williamson, M. A., B.Sc, Science Scholar of this University, 

 has recently sent a specimen of the reproductive organs of Chrysophrys 

 aurita from the Mediterranean. It is very well preserved, showing the 

 ovaries (5*7 cm. in length) with the plate-like testes (3-2 cm.) attached 

 along their ventral surface, and the duct opening to the exterior. 



EXPLANATION OF LETTERS USED IN DESCRIPTION OF 

 FIGURES 3-5. Plate VII. 



r. o. Right ovary, with small portion of testis attached. 



0. Oviduct : the two portions of the reproductive organs were joined 



round o. 

 r. t. Right testis. 

 b. v. Blood-vessel. 



1. o. Left ovary, with small portions of testis attached. 

 I. t. Left testis. 



p. o. Small ovary, posterior to oviduct. 

 p. t. Posterior portion of testis. 



d. Duct, from right testis leading into right ovary, showing longi- 

 tudinal ridges on its lower, and honeycombed appearance on 

 its upper surface. 



v. Fold or valve across the duct, with small opening. 



