3 o8 



DISCOVERY REPORTS 



Occurrence: i. Whale no. 503. South Georgia. Southern Right Whale. 8 S3, 7 ?? (some ovig., 

 some with embryos), 3 juv. 

 2. Whale no. 1020. Saldanha Bay. Southern Right Whale. 1 cJ, 2 $? with embryos, 

 1 juv. 



Description. General outline of peraeon in dorsal view rather broadly ovate. Head 

 with oblique lateral groove indicating line of fusion with 1st peraeon segment, with a 

 gibbous projection posteriorly, which is sharper in ? than in $ and fits in between the 

 two gibbous processes on segment 2. Segment 2 massive, rather gibbous in front, with 



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. 



