OF DENISON UNIVERSITY. 
6t 
discrete clumps of cilia and two sensory processes. The crop is 
large and distensible, the forceps are smooth and toothless. The 
oesophagus is long and muscular. The stomach is composed of very 
large cells and is held in place by bands of connective tissue. There 
are accessory glands between the stomach and crop. The ovary is 
pear-shaped (not ' horse-shoe-shaped, as in A. Myrmeleo), and can be 
seen to be made up of an elongated ribband of cells folded upon itself. 
The pulsating vessel is exceeding large and powerful, while the lateral 
vessels are convoluted canals ; accessory to the latter, there are nearly 
straight tubes bearing about twenty beaker-cells. The foot is two- 
jointed and contains small glands. The muscular spstem is highly 
developed and consists of strong bands passing backward from the 
head and frequently branching before they are inserted upon the very 
pliable external walk Two pedate cells lie upon the viscera and may 
represent the visceral nervous system. The nervous system was oth- 
erwise found to consist of ganglia upon the oral aspect, one of which 
bears a single led eye, and which send nerve-fibers to all parts of the 
body. The animal feeds upon species of minute Crustacea, especially 
of the genus Chydorus. The greatest length is .9 mm., width, .66 
mm., foot, .15 mm. This species was figured in the writer’s Final 
Report on the Crustacea of Minnesota, where ?Jso may be found the 
figure of 
Asplanchna sp ? 
This species, which seems to resemble A. Brightwelii of Gosse, is 
purse-shaped, being constricted about the head. The jaws are bi- 
dentate at the end and ribbed. The foot is entirely absent, but its 
position is indicated by the orifice of small glands. The stomach of 
the only individual of this species seen contained a number of the 
lorica of what may be Aniircea lojigispina^ Kellicott. 
Explanation of Plates. 
Plate II. 
Fig. 1. Dinacharis pocillum, Wax .1 
Fig. 2. AsplancJma magnificus, sp. 11. 
Fig. 3. EMchlanis ampuliformis, sp. n. 
Fig. 4. Salpina affinis, sp. n. 
Plate III. 
Fig. I . Pterodina patina, Elir. 
