New and Foreign Rotifera. By V. Gunson Thorpe. 305 
antennae are situated, one on each side, at the lower part of the 
globular dorsal surface. They can be seen distinctly also from the 
ventral aspect. A single dorsal antenna occupies the mid-line just 
below the upper border of the corona. 
Notommata cuneata. PL VI T. fig. 5. 
This pretty little species I found in considerable numbers in a 
quarry pool in Bickleigh Yale, Devonshire, in April 1890. Its 
general shape i$ that of a wedge, the broader extremity being the 
head. The pair of toes are long and curved, their length being one-third 
that of the body. There is a pair of auricles , the setae of which are 
unusually long. The trophi are of the usual type ; the stomach is 
capacious ; a contractile vesicle is also present. The crimson eye is 
conspicuous. The little creature secretes a glutinous material from 
its toes, by which it is in the habit of anchoring itself to surrounding 
objects. Length 1/300 in. 
Salpina cortina. PI. VII. fig. 6. 
This rotifer was found in the ponds of the Acclimatization 
Gardens, Brisbane, Australia, in January 1887. The occipital 
spines are wanting ; the pectoral pair short ; and the lumbar spine is 
considerably longer than the alvine spines. There is a deep notch in 
the posterior edge of the lorica, uniting the lumbar and alvine spines. 
The toes are two-thirds the length of the whole body. There is a 
large ganglion, with a conspicuous crimson eye. The rest of the 
anatomy is of the usual type. 
Anursea procurva. PL VII. fig 7. 
The only water supply in the desolate volcanic island of Ascension 
is brought to the town from Green Mountain, an oasis in the midst 
of ashes and cinders, by an aqueduct of pipes, seven miles in length, 
broken at regular intervals by covered tanks or reservoirs. The 
water in the cattle trough in front of one of these tanks, known by 
the expressive name of “ God-be- thanked ” Tank, I found this 
January (1891), to be swarming with Pedalion mirum, in company 
with a species of Anursea , which I believe to be new. 
When viewed from the front, one would be inclined to consider 
A. procurva but a variety of A. aculeata. When, however, a side 
view is obtained, it is at once seen that the lorica is considerably 
curved, so that the ventral surface is deeply concave, and that the 
anterior and posterior extremities project much beyond the line of the 
lateral edges. In regard to the occipital spines, six in number, the 
middle pair (antlers) are by far the longest, and are curved forwards. 
The two posterior spines are unequal. The lorica is hexagonally 
