NYMPHONIDAE 



77 



D. TROPICAL SPECIES 



Nymphon angolense, n.sp. (Figs. 36 and 37). 



St. 272. 30. vii. 27. Off Elephant Bay, Angola, from 13° n' S, 12° 44' 45" E to 13' 09' 45" S, 

 12° 46' E, 73-91 m. ; gn. S. M. Large otter trawl : 30 specimens, including ovigerous and larvigerous 

 (JcJ; 2 specimens bear each a small bivalve mollusc. 



Description of holotype (larvigerous 3). Trunk elongated and slender, lateral 

 processes separated by more than their own diameter (Fig. 36 «). Cephalic segment as 

 long as the remaining segments plus abdomen. Neck long and slender, less than half 

 as wide as the anterior cephalic lobes ; base of oviger small and rounded, in contact 



Fig. 36. Nymphon angolense, n.sp.: a. Dorsal view of body of holotype with chelophores and palps. 

 b. Lateral view of body with chelophore and palp. c. Third leg. 



with first lateral process. Ocular tubercle low and rounded ; a little higher than wide, 

 eyes conspicuous (Fig. 36 a and b). 



Proboscis half as long as cephalic segment, cylindrical, rather rounded at apex. 



Abdomen reaching a little beyond fourth lateral process, elevated at an angle of about 

 45°, approximately three times as long as broad. 



Chelophore. Scape subequal to proboscis; length five times the distal width. Chela 

 slender, rather curved and somewhat longer than scape (Fig. 37 a) ; fingers a little longer 

 than palm, approximately forty-five crowded spinules on immovable, fifty-five on 

 movable one. 



Palp long and slender, segments 2-5 in the proportions 10 : 6 : 3 : 3-3 (Fig. 37 b). 



