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Mature females of Mermis nigrescens are exceptionally large for a nematode (100 mm long) and unusual in having a single eye.
Specimens of the mature adult female of Mermis nigrescens Cobb 1926 were collected as they were ovipositing on vegetation near Vancouver, Canada.
The four cephalic and two amphidial sensilla of Mermis nigrescens are attached to the anterior cuticle about 46 [micro]m and 64 [micro]m, respectively, from the tip (Fig.
When an adult female of Mermis nigrescens crawls on a horizontal surface, it glides on its ventral surface (unlike other nematodes), its anterior is elevated above the surface, and there is a continual side-to-side (lateral) and vertical (dorsoventral) bending of the "head" (Burr et al., 1990).
Scanning motion, ocellar morphology and orientation mechanisms in the phototaxis of the nematode Mermis nigrescens. J.
Naturally crystalline hemoglobin of the nematode Mermis nigrescens. Biophys.
Mermis nigrescens: physiological relationship with its host, the adult desert locust Schistocerca gregaria.
Naturally crystalline hemoglobin of the nematode Mermis nigrescens. An in situ microspectrophotometric study of chemical properties and dichroism.
In the coelomyarian muscle type, seen in Mermis nigrescens (19, 29) and various other large nematodes including Ascaris lumbricoides (reclassified suum) (1214), the plate of myofilaments is folded lengthwise so that most of the contractile layer lies radially [ILLUSTRATION FOR FIGURE 1 OMITTED].
Free-living stages of Mermis nigrescens (about 100 mm in length and 0.4 mm in diameter) are capable of remarkable local control of six to eight body waves so as to apply lateral force to various point contacts in grass as the body tube glides by (29).
Unique locomotory mechanism of Mermis nigrescens. a large nematode that crawls over soil and climbs through vegetation.