70 | Zoological Society. 
right lung presented three lobes and the median lobule; the left 
lung three lobes. 
«There was nothing remarkable in the ovaria or fallopian tubes. 
The two uteri terminate by distinct valvular orifices; they are long 
and narrow: in each mesometry there is a plexus of transversely dis- 
posed vessels, principally veins, which runs parallel with the uterus, 
and seems to represent the remains of the wolffian body. The most 
interesting feature in the generative organs was a longitudinal sep- 
tum, dividing the vagina into two canals for upwards of an inch be- 
yond the ora tince. ‘This septum terminated by a thin concave edge, 
directed towards the outlet of the vagina. There was no constric- ~ 
tion or valvular fold between the divided and the undivided portions 
of the vagina; the former were somewhat more vascular, and slightly 
plaited longitudinally. The whole length of the vagina was four 
inches. The clitoris was perforated by the urethral canal, and was 
nine lines in length. 
“No other placental quadruped has hitherto presented so near an 
approach to the marsupial type of the female organs as the Lagosto- 
mus. Rudiments of a vaginal septum occur in the young or virgin 
state of several genera; but it is only in the Lagostomus that a con- 
tinuation of the median separation of the genital tubes has been 
continued beyond the uterine portion along so great an extent of the 
vagina, and as a permanent structure.” 
Professor Owen also communicated the following paper, entitled 
‘« Observations on the Generative System of some of the lower Ani- 
mals,” by Professor Rudolph Wagner, M.D. 
«« Among a variety of observations which I undertook on the coast 
of Nice in August and September 1839, for the purpose of obtaining 
a more intimate knowledge of the anatomy and physiology of marine 
animals, there are several which perhaps afford some more general 
interest for the natural history of animals. 
“« Many of my own earlier observations had produced the convic- 
tion, that a disjunction of the sexes is much more universal than has 
been hitherto admitted. Cuvier, in his ‘ Régne Animal,’ and after 
him the most of those who have entered upon Zoological Classifica- 
tion, still assume that among the so-called lower animals many are 
no more than females, and others without sex. 
“Thus, to begin with the Mollusca, and judging from assertion, 
the Cyclobranchiata up to the present time are known only as fe- 
males. I succeeded as well in Patella as in Chiton in finding some 
individuals that were males, and others that were females. The 
males have a white testis, with active spermatozoa, resembling those 
of muscles ; the females have all the elements of the primitive ovum. 
The Ascidie also appear to be of disjoined sex. I found, however, 
in several species merely ova, but ova that presented the germinal 
vesicle and germinal spot. 
“ Among the Radiata I had hitherto found only females, as well 
in the Starfish as in the Sea-urchin and the Holothurie. The pear- 
