. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. AMPELISCIDAE 87 Antenna 1 very short, flagellum 2-3-jointed. Mandibular palp slender, 3rd joint half length of 2nd. Peraeopods 3 and 4 with 2nd joint broadly expanded, 5th joint with marginal spines only. Peraeopod 5, 2nd joint distally expanded, marginal setae extending round on to margin facing 3rd joint, 6th linear, dactyl spiniform. Branchial lamellae simple. Remarks. The genus is instituted on the very strong post-antennal corner of the head, simple branchiae, the very short 1st antennae, a
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. AMPELISCIDAE 87 Antenna 1 very short, flagellum 2-3-jointed. Mandibular palp slender, 3rd joint half length of 2nd. Peraeopods 3 and 4 with 2nd joint broadly expanded, 5th joint with marginal spines only. Peraeopod 5, 2nd joint distally expanded, marginal setae extending round on to margin facing 3rd joint, 6th linear, dactyl spiniform. Branchial lamellae simple. Remarks. The genus is instituted on the very strong post-antennal corner of the head, simple branchiae, the very short 1st antennae, and the short flagellum of antenna 2. The side-plates and peraeopod 5 are like those of Byblis, the telson and peraeopods 3 and 4 like those of Ampelisca. Byblisoides juxtacornis, Brnrd. (Fig. 41). Barnard, 1931, p. 426. Occurrence: 1. St. 181. Palmer Archipelago. 1 £ 16 mm., 3 ?? 22 and 27-28 mm. (one of latter ovig.), 4 juv. 11-16 mm. Types. 2. St. 186. Palmer Archipelago. 1 immat. (? <$) about 16 Fig. 41. Byblisoides juxtacornis, Brnrd. a. Head with antenna 1 (o) and 2, and peraeon segments 1-4 with side-plates, b. Antenna 1 $. c. Pleon segments 3 and 4. d. Telson. e. Peraeopod 5 (inner surface). Description. Head, peraeon and pleon dorsally rounded. Rostrum obsolete. No corneal lenses; no ocular pigment (as preserved). Post-antennal angle acute, far forward, almost at the level of the dorsal apex of head, the bases of 2nd antennae consequently. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press
Size: 1499px × 1667px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
