Sealers Bay, Codfish Island, near Stewart Island, November 4, 1948, R. K. Dell (D.M. 2/1018).

Zearchaea fiordensis n.sp. Figs. 5, 10–12, 20–21.

Colour. Cephalothorax and appendages yellowish-brown, but clypeus reddish brown. Abdomen uniform creamy-white.

Carapace (Fig. 5). Smooth, dorsal surface covered with small recumbent hairs as in clypeata but also with three pairs of erect hairs which are not present in clypeata. The shape of the carapace is similar to clypeata, as high as it is wide, slightly constricted but not forming a definite neck. The clypeus projects forward over the chelicerae, broad, bluntly pointed, height equal to 12/5 of the diameter of an anterior median eye.

Eyes. Ratio of Ame:Ale: Pme: Ple: = 5:7:6:6. The Ame are separated from each other and from the Ale by a distance equal to twice the diameter of an Ame. The lateral eyes are contiguous, while the anterior and posterior median eyes are sub-contiguous. The Pme are separated from each other by 12/5 and from the Ple by 11/5 of the diameter of an Ame. The median ocular quadrangle is wider behind than in front in the ratio of 7:5. The Ame are black, remainder pearly-white.

Chelicerae (Fig. 10). Long and relatively slender, clothed with serrate setae which, except for a large seta near the base, are uniformly small. There is a row of smooth setae along the promargin, with two small teeth as in clypeata. The retromargin is smooth. The fang is short and slightly curved near the base.

Maxillae. Lateral margins sub-parallel, longer than wide at the base in the ratio of 9:7, arched over the labium, sub-contiguous. Serrula and distal scopula present.

Labium. Nearly three times as wide as long, anterior margin rounded.

Sternum. Similar in appearance to clypeata, with raised sub-marginal ridges, longer than wide in the ratio of 7:5 and rounded posteriorly. The fourth pair of coxae are separated from each other by a distance which is equal to slightly less than their width.

Legs. 1.4.2 3. Relatively slender, clothed with small serrated setae. Legs 1, 2 and 4 are provided with four trichobothria on the tibiae and one on the sub-distal surface of the metatarsi. Leg 3 with three trichobothria on the tibia and one on the metatarsus. Tarsal drums absent. Three claws are present rising from a small onychium. The superior claws appear to be homogeneous, with three or four small teeth along the ventral surface. Inferior claw slender on tarsus 1

but stouter than the superior claws, although shorter, on legs 2–4 and armed with a single ventral tooth.

Palps (Figs. 20-21). There is no apophysis on the femur as in clypeata, but there is a strong tibial apophysis present which is similar to that possessed by clypeata but much more strongly developed. Tibia with two long trichobothria on the dorsal surface. The cymbium is curved slightly down on the retromargin but is not armed with an apophysis. Tarsal drum lacking. The genital bulb is

Text-fig. 2.—Figs. 10-12—Zearchaea fiordensis n.sp. Fig. 10—Chelicera of male. Fig. 11—Female pedipalp (hairs not drawn). Fig. 12—First leg of female. Figs. 13-15—Pararchaea binnaburra n gen n.sp. Fig. 13—Female chelicera. Fig. 14—Prolateral surface of the second leg of the female showing the stridulating ridges. Fig. 15—Retrolateral surface of the first leg of the female showing the stridulating rods. Figs. 16-19—Pararchaea alba n. gen. n. sp. Fig. 16—Male chelicera. Fig. 17—First leg of the female showing the stridulating rods.