Harring and Myers -— The Rotifers of Wisconsin. 623 
The auricles are approximately of the normal Notommata- type, 
with a small tuft of close-set, long cilia. 
The mastax differs only in details from the specialized virgate 
type common to the genus. The rami are of a lyrate form with 
well-developed alulae and without the dorsal right-angled ex¬ 
tension, thus resembling very strongly the normal forcipate type. 
The fulcrum is a short, nearly square plate. The unci have three 
unequally developed teeth; the central tooth is long, slender, and 
slightly curved; the lateral are only half as long. All three teeth 
are joined by an elongate, oval plate with a longitudinal rib; the 
ventral tooth does not appear to be connected to the manubrium 
except through the plate and the two dorsal teeth of the uncus. 
The manubrium is of approximately normal form; the anterior 
branch is very large and broadly crescent-shaped; its general di¬ 
rection is nearly parallel to the longitudinal axis of the body and 
approximately at a right angle to the median branch, which is 
very slender and slightly expanded at the tip. The dorsal branch 
is short, and the walls of the mastax are not supported dorsally 
by the trophi. The epipharynx consists of two thin, lamellar 
pieces, meeting below the mouth; the anterior portion is rather 
narrow, while the posterior is somewhat abruptly expanded into 
a broad plate. Together the two sections of the epipharynx form 
approximately a semicircle. Rudiments of the ventral glands 
of the mastax are present, but they do not appear to be func¬ 
tional. 
The oesophagus is long and slender; it is frequently looped. 
Stomach and intestine are indistinctly separated. The gastric 
glands are moderately large and rounded. The bladder is of nor¬ 
mal form. The ovary is large and elongate-ovate in outline. The 
foot glands are large and ovate; they discharge into a small mucus 
reservoir. 
The ganglion is large and saccate. The retrocerebral organ 
consists of a moderately large, ductless sac at the posterior end 
of the ganglion; it encloses the eye-spot, and red pigment granu¬ 
les are scattered throughout its contents, most abundantly at the 
anterior surface. 
Total length— 300-350/a ; toes 15-18/a ; trophi 18/a long, 30/a wide. 
Lindia annecta occurs in sphagnum bogs and ditches near At¬ 
lantic City, New Jersey, usually in very large numbers. It has 
not so far been found elsewhere. 
