. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. OEDICEROTIDAE i39 Gnathopod i, 5th joint produced in a rounded lobe below, but not produced forwards, 6th longer than 5th, palm longer than hind margin, defined by a blunt tooth. Gnathopod 2, 5th joint with narrow spoon-shaped process extending only half-way along hind margin of 6th, 6th elongate-oval, palm longer than hind margin, defined by a slight emargination, but no tooth. Peraeopods 1 and 2, joints moderately expanded. Peraeopods 3 and 4, 2nd joint oval, 4th expanded, 7th subequal to 6th.
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. OEDICEROTIDAE i39 Gnathopod i, 5th joint produced in a rounded lobe below, but not produced forwards, 6th longer than 5th, palm longer than hind margin, defined by a blunt tooth. Gnathopod 2, 5th joint with narrow spoon-shaped process extending only half-way along hind margin of 6th, 6th elongate-oval, palm longer than hind margin, defined by a slight emargination, but no tooth. Peraeopods 1 and 2, joints moderately expanded. Peraeopods 3 and 4, 2nd joint oval, 4th expanded, 7th subequal to 6th. Peraeopod 5, 2nd joint broadly pyriform, 7th subequal to 6th. Remarks. The very short process on the 5th joint of gnathopod 2 is distinctive, but whether the scabrosity on the pleon is unique one cannot say, because such features are frequently not recorded. Monoculodes vallentini (Stebb.) (Fig. 78). Stebbing, 1914, p. 360, pis. vi, vii. Occurrence: St. 51. Falklands. 3 $$ 10-11 mm., 2 °. 12-13 mm., 1 juv. 7 mm. Description. Integument on the pleon covered with minute pointed denticles, much smaller than in scabriculosus. Rostrum moderate, reaching to middle of 1st joint of antenna 1, deflexed, evenly curved. Head not narrowly produced behind eyes. Eyes visible as oval white patches, con- tiguous on top of head. Side-plates 1-4 rather deep, 1 expanded in front, 4 with posterior margin emarginate, lower mar- gin gently convex, not projecting very much lower than postero-inferior angle, the latter more narrowly rounded than in Stebbing's figure. Postero-inferior angle of pleon segment 3 broadly rounded. Telson quadrangular, slightly longer than Fig/ ?8\ ^onof0^ *»f (Stebb-)- «• Gnatho- . pod 1. b. Gnathopod 2. c. Telson. d. Integumentary broad, apex truncate, straight or very sculpture from dorsum of pleon. slightly emarginate, angles rounded, with a seta near each. Antenna 1 reaching only a very short way beyond end of peduncle of antenna 2, 1st and 2nd joints subequa
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