60 Cumacea: 7. Paralampropidae, 1. Paralamprops, 8. Platysympodidae 



Between the 2 latter pairs is a small interrupted serrate carina, and beneath 

 the encircling keel there is a small smooth one. Pedigerous segments well 

 developed, tirst three with transverse rows of denticles, and their iufero- 

 lateral angles acute. Pleon with telson much longer than preceding part of 

 the body. Telson very slender, much longer than 6*^ pleon segment, but 

 much shorter than the peduncle of the uropods, armed with 10 pairs of 



spines laterally, the large last pair similar to the 

 3 apical spines. Ocular lobe very small, conical. 

 Antenna 1 elongate, apices of P* and 2"^ joints 

 denticulate, flagellum of 5 long joints and a ter- 

 minal very short one, each of the last 2 having 

 an annulated sensory appendage; accessory 3-jointed 

 nearly as long as principal. Antenna 2 of Q with 

 basal joint perhaps subdivided, the next joint 

 short with 2 plumose setae, the terminal joint long 

 and slender, the penultimate denticulate. Maxilli- 

 pjg 30 ped 1 with 6 branchial leaflets on the epipod. 



p. serratocostata (?) Sars, Peraeopod 1 long and slender, 7*^^ joint very slender, 

 antenna 2. r^g j^j^g .^g j-]jg 5th^ g.^gj^ shorter than the 6*^^, all three 



with slender setae on the- medial margin. Peraeo- 

 pod 2 with long 5*^^ joint equal to 6^^ and 7"i combined, 6*^^ very short. 

 Peraeopod 5 very small. Pleopods with^short rami, the endopod 1-jointed with 

 projection crossing the 2-jointed exopod' just below its 1^* joint, each ending 

 in 4 setae. Peduncle of uropods long, but scarcely longer than the endopod, 

 both carrying numerous unequal spines on the medial margin, l''*^ joint of 

 endopod nearly twice as long as the other 2 joints combined; exopod as long 

 as first 2 joints of endopod, its 1^^ joint very short. L. Q 12 mm. 



Kerguelen Islands, depth 232 m. 



2. P. aspera Zimmer 1907 P. a., Zimmer in: Zool. Anz., i;. 31 p. 373 | 1912 P. 

 asper, T. Stebbing in: Ann. S. Afr. Mus., v. 10 v p. 143. 



Very like P. serratocostata, but with 9 carinae on the carapace, the 

 encircling lateral pair, a 2"'^ within meeting this forward on the pseudorostral 

 lobes, a third further in on the hinder half of the carapace, a 4*^ within 

 this, parallel to it but a little further forward, and a median carina on the 

 front half; the third carina continued on the pedigerous segments; of these 

 the antero-lateral angles are not acutely produced; pleon dorsally rough 

 with denticles; telson reaching end of peduncle of uropods: antenna 1 long, 

 but not so long as in the preceding species. Colour yellowish white. L., 

 young d, about 9 mm. 



German South Pole Expedition, Winter Station (lat. 66^ 2' S., long. 890 38' E.), 

 depth 385 ui. 



8. Fam. Platysympodidae 



1899 & 1900 Platyaspidae, G. (). Sars, Crust. Norway. v.S p. 3; p. 26 ] 1905 P. 

 (part.), Caiman in: Sci. Invest. Fish. Ireland, 1904 app. 1 p. 42 | 1912 Platysympodidae, 

 T. Stebbing in: Ann. S. Afr. Mus.. v. 10 v p. 133, 143. 



Telson large with more than 2 apical spines. Antenna 1 with both 

 flagella well developed. Antenna 2 of female 4-jointed. Maxilla 1 without palp. 

 Exopods on peraeopods 1—4 in the male, only on the 1«* pair in the female. 

 Only 3 pairs of pleopods in the male. Uropods with the endopod 3-jointed. 



1 genus. 



