102 E. S. Morse—Brachiopoda a division of Annelida. 
that in this respect there was a strong resemblance to the Crus- 
tacea. 
e 
In regard to the respiratory system, Burmeister had shown 
that there was a resemblance between the soft folds or lamelle, 
developed on the internal surface of the mantle of Balanide; 
and similar features in Lingula; though the existence of these 
folds in Lingula had been questioned, he would presently show 
that Vogt was right in his observations. In regard to the repro- 
ductive system, he called attention to the fact that in one group 
of Cirripeds the ovaries were lodged in the upper surface of the 
peduncle, while in another group the same parts were lodged in 
the mantle. A similar condition existed in the Brachiopods 
where in one group the mantle holds the ovaries, while in another , 
group they are found in the visceral cavity. 
rough Polyzoa also he showed that, in their winter eggs or 
statoblasts, a relation was seen to the ephippia of Daphnie, and 
the winter eggs of Rotifers. 
Of great importance also, and upon which he laid particular 
weight, were the peculiar oviducts with their trumpet-shaped 
openings so unlike the oviducts of mollusks, and as he believed, 
bearing the closest affinity to the oviducts in many of the 
worms, namely: a pair of tubes, and in one case two pairs, hav- 
ing their inner apertures with flaring mouths, suspended in the 
visceral cavity, thus opening a direct.communication between 
the visceral fluids and the surrounding media. He then called ~ 
Association for the Advancement of Science on the early stages 
of the Brachiopods, in which he had shown the intimate connec- 
tions existing between this group and the Polyzoa. Now Leuck- 
art had already seen reasons for placing the Polyzoa with the 
Annelids, and ths would call attention to Crep/na gracilis an 
Phorronis hippocrepia, admitted to be worms or early stages of 
