Leptostyloides quadridentata Gamo 1985

• Main Authors: Mühlenhardt-Siegel, Ute, Lavrenteva, Anna V.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Cumacea; Diastylidae; Leptostyloides; Leptostyloides quadridentata; Kamchatka
• Online Access: https://doi.org/10.5281/zenodo.5625065; http://treatment.plazi.org/id/03A9FC1F2A53FFF1FF12FD89FB5689CF

Leptostyloides cf. quadridentata (Gamô, 1985) (Figs. 10–12) Material . #7-9: 1 adult female (11.5 mm long; developing oostegites), 1 carapace; ZMH: K 44241; #10-9: 1 preparatory female (6 mm long, developing oostegites, dissected)¸ ZMH: K 44242. Description . Adult female with developing oostegites, 11.5 mm long (Fig. 10). Carapace short, 0.22 of total length, twice as long as free thoracic segments combined, globose; a short row of five teeth starting under tip of pseudorostrum, bending ventrally?; carapace with scattered fine spinules; frontal lobe fissure submerged, not visible in lateral view; pseudorostral lobes meeting in front of ocular lobe, 0.16 times of total carapace length, direced slightly upwards, blunt tip; siphonal tube not protruding; ocular lobe small, roundish, no eye lenses. In lateral view of the figured female five oily drops were detectable on the left side (Fig. 10). Antennal notch and anterolateral tooth missing; anteroventral margin of carapace with long teeth. Integument whitish, translucent. Five free thoracic segments visible, the first two narrow. Although the marsupial plates are developing, pereonite 5 has no extremities, the pereiopod 5 is missing. Pleon much (1.8 times) longer than carapace and free thoracic segments combined, measured without telson. L. calcar L. secundus L. cf. L. quadridentata quadridentata distribution Kermadec Trench Argentine Basin Kurile Japan Trench Kamchatka abyssal plain Row of teeth laterally on pseudorostrum no 7+5 teeth 5 teeth 6 teeth Telsonic segment elongate, 1.3 times longer than telson, 0.7 times as long as pleonite 5. Telson (Fig. 12, U) with two terminal setae and a pair of lateral setae subterminally. Appendages : preparatory female (ZMH K 44242), 6 mm long. Antenna 1 (Fig.11, A1): relative length of peduncle articles 1 to 3: 43/36/31. Article 1 slightly bent, with fringe of hair-like setae along inner and outer margins, two long pappose setae on distal corners, a tooth near outer distal corner; article 2 with simple seta on distal inner ...