Anyphæna incerta.—About a fifth of an inch long, light yellow, with gray markings. The cephalothorax is three-quarters as wide as long, rounded at the sides and highest in the middle. The front of the head is very low, so that the eyes nearly touch the mandibles. The front row of eyes is nearly straight. The upper row is longer and more curved, with the middle eyes highest and farthest apart [(fig. 39)]. The abdomen is large in the female, widest behind the middle, and a little pointed behind. The labium is not longer than wide, and the maxillæ are straight, with the sides parallel. The sternum is oval, not so short and wide as in pratensis. The opening of the air-tubes is halfway between the epigynum and spinnerets [(fig. 38)], instead of just in front of the spinnerets, as it is in most spiders. The spinnerets are two-jointed. The legs are slender and tapering, the fourth longest in females and the first in males. The cephalothorax has two longitudinal broken gray bands. The abdomen has a double row of spots in the middle and oblique rows of smaller spots each side. The oblique lines of spots extend under the abdomen halfway to the middle.

Anyphæna calcarata.—The same size and color as A. incerta, with longer legs. The markings are the same in both species. The plainest difference between the females is in the epigynum, the hard and dark parts of which are larger and longer in incerta. Another slight difference is in the shape of the sternum, which in calcarata extends farther between the hind legs [(fig. 42)]. In incerta it is more pointed at the hinder end and shorter [(fig. 38)]. The difference between the length of the legs in the two species, which is slight in the females, is greater in the males, the legs of calcarata being the longer. The palpi of the males differ considerably. In incerta [(fig.37)] the tibia of the palpus has a large process on the outer side close to the tarsus and extending along its edge a third of its length. In calcarata [(fig. 43)] the corresponding process is small and does not lap over the tarsus. The coxæ of the third and fourth legs of the male calcarata have little processes on the under side [(fig. 42)], one on the fourth and two on the third. These do not occur in incerta. It lives on plants like saltabunda (p. [14]).

Anyphæna rubra.—Larger than the other species, with the legs shorter. The female is about a third of an inch long, with the abdomen longer and narrower than in incerta or saltabunda. The opening of the air-tubes [(fig. 45)] is farther forward than usual, twice as far from the spinnerets as from the epigynum. The legs are comparatively short, the longest, the fourth, being about as long as the body. The maxillæ are a little widened at the end. The sternum is widest at the second legs and narrows to a point behind. The head is a little wider than usual, and the whole appearance more like Clubiona than the other species. The color is the usual pale yellow, a little brownish on the head and legs, and with two longitudinal stripes on the cephalothorax. The abdomen is nearly white, with two stripes made up of gray spots, and scattered spots at the sides. The spots turn red in alcohol.