Plectus rhizophilus, de Man, 1884

Thorne, Gerald, 1929, Nematodes from the Summit of Long's Peak, Colorado, Transactions of the American Microscopical Society 48 (2), pp. 181-181 : 194-195

Plectus rhizophilus deMan, 1884.

The cuticle is marked by rather coarse striae. The two wings are prominent. The lip region is very slightly set off in an amalgamated hemispherical area. There are four strong setae half as long as the width of the base of the lips. The large emphids are about one-fourth as wide as the head, hooked in form and located just below the middle of the pharynx. The renette pore lies just behind the nerve ring. The two ovaries are symmetrical the front being on the right, the rear on the left, side of the body. The eggs are one and one-half times as long as the body width and half as wide as long. The rectum is about half as long as the anal body-diameter. Perhaps the most distinguishing feature about this species is the long, gradually tapering tail. Slender bristles occur at various points on the body. Fig 17a—b

The three specimens in this collection are all that the writer has found in the western states.

Figures

Plectus rhizophilus

Fig 17a—b