3i° 



DISCOVERY REPORTS 



Gnathopod 2, 5th joint ovate, with a pointed tooth near base and an obliquely truncate 



broader tooth near hinge on inner margin. 

 In ? both gnathopods are similar to those of 

 3 but not quite so strong. 



Peraeopods 5-7 not very strongly expan- 

 ded, distal anterior corner of 2nd joint pro- 

 duced ventrally as a sharp tubercle, stronger 

 in ? than c?, 3rd joint feebly expanded, 4th 

 with antero-distal angle sharp and turned 

 outwards, 6th narrow-ovate, inner margin 

 very slightly sinuous, dactyl strongly 

 curved. 



Branchiae single on both segments 3 and 

 4, short, about as long as segments 2 and 3 

 together, stout, accessory appendage in 3 

 a short pointed process, single on both 

 segments; in ? absent. 



Length: 3 8-5 mm., $ 8 mm. 



Colour (as preserved) dull pinkish 

 brown, eyes black. 



Remarks. A very distinct species. In 

 having unusually well-developed processes 

 , , r> j T-> 1 • on the rudimentary pleon it resembles 



Fig. 171. Cyamusbalaenopterae,Bmrd.a. Dorsal view °" ""' lu J r 



of .J, with pleon further enlarged, b. Dorsal view of physeteris. The dactyls of peraeopods 5-7 

 $. c. Ventral view of peraeon segments 5-7 9, with a j so somewhat resemble those of the species 



just mentioned in their strongly drepani- 



form curvature. 



proximal joints of peraeopods 5-7. d. Branchial, e. 

 Gnathopod 1 $. f. Gnathopod 2 <J. 



Genus Paracyamus, G. O. Sars. 

 Sars, 1895, p. 669. 

 Gnathopods 1 and 2 unequal. Antenna 2, 4-jointed. Maxilla 2 with outer lobes. 

 Maxilliped, palp well-developed in young, but rudimentary in adult. Dactylus and 

 unguis of gnathopod 1 evenly tapering, the latter not distinct. Branchiae single on both 

 segments 3 and 4. 



Paracyamus erraticus (R. de Vauz.) (Fig. 172). 



R. de Vauzeme, 1834, p. 259, pi. viii, figs. 22, 23. 

 Liitken, 1873, p. 260, pi. iii, fig. 5. 

 Stebbing, 1910 a, p. 472. 

 Chevreux, 1913, p. 183, fig. 62 (maxilliped). 

 Occurrence: Whale no. 1020. Saldanha Bay. Southern Right Whale. 8 33, 10 $$ (ovig. and 

 with embryos), several juv. 



