1(50 



Cumacea: 21. Dicidae, 1. Die 



1. Gen. Die T. Stebbing 



1910 Die, T. Stebbing in: Ann. S. Afr. Mus., v. 6iv p. 415 ; 1912 Diastylis (part.), 

 Caiman in: P. U. S. Mus., v. 41 p. 608 | 1912 Die, T. Scott in: Sci. Invest. Fish. Scotl., 

 1911 nr. 1 p. 5 1 1912 D., T. Stebbing in: Ann. S. Afr. Mus., v. lOv p. 147. 



Sixth segment of pleon very short; telson very much longer than that 

 segment and longer than the peduncle of the uropods. 



2 species. 



Synopsis of species: 



( Uropods with exopod and endopod equal in length . . 1. D. calmani 



\ Uropods with exopod much longer than the endopod . 2. D. tubulieauda 



1. D. calmani Stebb. 1910 D. e., T. Stebbing in: Ann. S. Afr. Mus., r. 6iv 

 p. 416 t. 46 B, 47. 



Pseudorostral lobes down bent. Carapace in front with several obliquely 

 transverse markings. Third and fourth pedigerous segments dorsally coalesced. 



Fig. 109. 

 D. calmani Stebbing, maxiUiped 3, left and right. 



Fig. 110. 

 D. calmani Stebbing 



Telson as long as the 3 preceding segments combined, apex cut into 

 10 denticles. Antenna 1, principal flagellum small, 4-jointed, accessory 

 minute, 2-jointed. Antenna 2, flagellum 5-jointed, the specimen no doubt 

 not fully adult. Mandible with numerous spines. Maxilla 1 with 2 filaments. 

 MaxiUiped 3, 2"^ joint distally dilated, 3*^ of unusual size and shape, the 

 broadly rounded end nearly reaching distal end of the b^^. Peraeopod 1, rather 

 long, 2^^ pair not more than a third as long, but with stout 2^^ joint. Exo- 

 pods of 3d and 4*^ pairs 2-jointed, shorter than the 2°^ joint, probably not 

 fully developed. Peraeopod 5 short. Peduncle of uropods more than %*^^ as 

 long as the telson, longer than the exopod, which is equal to the endopod; of this 

 the spines on medial margin of the 3 joints are respectively 4, 3, 3. L. d 

 not fully adult, about 5 mm. A specimen 2-75 mm long, is without 5*^ peraeopod. 



S. Africa lat. 320 53' 30" S., long. 28^ 11' 00" E., depth 75 m. 



