210 Mr. E. Parfitt 07i a new Fossil Balauus. 



points of departure of the vascular branches of which they are 

 the terminations. 



The male generative apparatus consists of four trilobate 

 testes, of which the median lobe contains the youngest sper- 

 matic cells. These testes are arranged in pairs in the eleventh 

 and twelfth segments. To each of them corresponds a vibra- 

 tile funnel with very flexuous margins. The canals which 

 form the continuation of these funnels unite two and two on 

 each side into a slender duct, which unites with the excretory 

 canal of a large, very deeply lobed gland situated behind the 

 cincture. These two canals united form a third, very large 

 one, slightly twisted, which opens externally by the so-called 

 male genital orifices. 



The ovaries have the appearance of a simple racemose 

 gland, and occupy the thirteenth segment ; two sessile vibra- 

 tile funnels, situated on each side of the unpaired orifice of the 

 clitellum, serve them as oviducts. 



The copulatory pouches (?) , to the number of three pairs, are 

 formed by a large pedunculate pyriform sac, upon the peduncle 

 of which is engrafted, on the same side of the partition, a 

 long tortuous tube, the sinuosities of which are contiguous to 

 each other, and on the other side of the partition a very small 

 and scarcely lobate gland, presenting the same aspect as the 

 tube. The three pairs of copulatory pouches are placed in the 

 seventh, eighth, and ninth segments. We have indicated the 

 position of their orifices. 



It is clear that this generative apparatus belongs completely 

 to the type of that of the Lumbricina. 



XXVI. — Description of a 7iew Fossil Balanus. 

 By Edwakd Paefitt. 



Balanus sauntonensis, n. sp. 



Shell like B. balanoides, but, on the average, larger, the base 

 in full-grown specimens measuring from six to eight lines 

 in diameter. Parietes perforated with a single row of an- 

 gular pores, the divisional plates standing at various angles 

 to the walls of the shell. 



Scutum. — Tergal margin nearly straight ; apex pointed ; arti- 

 cular ridge very prominent and rounded at the apex ; arti- 

 cular furrow strongly impressed ; two deep triangular de- 

 pressions in the place of the cavity usually formed for the 

 lateral depressor muscle. 



Tergum. — Apex pointed ; scutellar margin slightly curved ; 



