Cypridinodes asymmetrica (Mueller 1906)

Cypridinodes asymmetrica (G. W. Müller)

Cypridina asymmetrica Müller, 1906:14, pl. 6: figs. 1–12; 1912:10 [key], 13.—Skogsberg, 1920:190 [discussion].—Monod, 1932:6, pls. 7–10.

Cypridinodes asymmetrica (Müller).—Poulsen, 1962:297, figs. 136, 137.

HOLOTYPE.—None designated.

SYNTYPE-LOCALITY.—Malayan Archipelago.

MATERIAL EXAMINED.—None.

DIAGNOSIS.—Right valve with lunate process on anteroventral margin below incisur. Carapace length: adult males 2.7–2.9 mm, adult females 2.8–3.0 mm (Poulsen, 1962); males 2.1 mm, females 2.3 mm (Müller, 1906).

Second antenna: Second joint of endopodite bare.

Seventh limb: Terminal comb with 25 teeth, movable jaw with marginal teeth; limb with 68 bristles.

Furca: Each limb with 7 claws, separated from lamella by suture.

Lateral eye: Well developed.

Upper lip: Posterior margin of proximal part of each tusk with 12 teeth.

DISTRIBUTION.—This species was originally described by Müller from the Malayan Archipelago. Monod (1932) and Poulsen (1962) recorded specimens from the same general area. Poulsen (1962) extended the range to Samoa and Thailand and also reported a juvenile from the Red Sea and a juvenile from the Tasman Sea, (37°05′S, 150°05′E, 70–100 m). The latter is the only report of the species within the present study area (Figure 34). The species has been collected from surface waters as well as at depths of 70–100 m. The species apparently is confined to shelf waters.