. Fig. 170. Cyamiis ovalis, R. de V. a. Dorsal view of $. b. Ventral view of branchiae of adult #. c. Ventral view of branchiae of juv. 4 mm. d. Gnathopod 2 $. e. Ventral view of peraeon segments 5-7 5. f- Gnathopod 1 juv. 4 mm. g. Gnathopod 1 immature $. h. Gnathopod 1 adult <J. two small rounded dorsal protuberances, laterally with a backwardly directed hooked process. Segment 3 with anterior and posterior angles produced into lobes, the anterior larger than the posterior and somewhat hollowed dorsally for the reception of the process on segment 2. Segment 4 with postero-lateral angle sub
. Fig. 170. Cyamiis ovalis, R. de V. a. Dorsal view of $. b. Ventral view of branchiae of adult #. c. Ventral view of branchiae of juv. 4 mm. d. Gnathopod 2 $. e. Ventral view of peraeon segments 5-7 5. f- Gnathopod 1 juv. 4 mm. g. Gnathopod 1 immature $. h. Gnathopod 1 adult <J. two small rounded dorsal protuberances, laterally with a backwardly directed hooked process. Segment 3 with anterior and posterior angles produced into lobes, the anterior larger than the posterior and somewhat hollowed dorsally for the reception of the process on segment 2. Segment 4 with postero-lateral angle subacutely produced. Segment 7 subtriangular, broader than long, hind margin straight. On ventral surface faint indications of a pair of tubercles on both segments 6 and 7 in S; in $ a pair of conical tubercles on both segments 6 and 7, and on segment 5 a pair of oblong inwardly directed blunt processes. Antenna 1, ist-3rd joints subequal, slightly shorter than length of head plus 1st segment. Antenna 2 much shorter than 1st joint of antenna 1.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
