54 BRITISH COPEPODA. 



to the ordinary toothed character, and are also pro- 

 vided with a palp), and in the less elongated suctorial 

 mouth. It may be doubted, however, whether further 

 examination may not show the propriety of uniting 

 both genera under Artotrogus (Ascomyzon, Lilljeborg). 



1. CYCLOPICERA NIGRIPES, Brady and Robertson. PI. 



LXXXIX, figs. 111. 



Cyclopicera nigripes, B. & R. Brit. Assoc. Report, p. 197 (1875). 



Robust ; cephalothorax broadly ovate (fig. 1) ; abdo- 

 men short and stout, the first and second somites 

 having their posterior margins produced into sharp 

 lateral angles. Anterior antennas (fig. 2) composed of 

 nineteen joints, the first the largest, the second to the 

 ninth at least twice as broad as long, tenth to six- 

 teenth narrower, and about as broad as long, seven- 

 teenth and nineteenth fully twice as long as broad, 

 eighteenth about one third as long as the nineteenth ; 

 the first joint has at its apex a long sharp spine, the 

 other joints each bearing one or more very short setae, 

 besides which the ante-penultimate joint gives attach- 

 ment to a sword-shaped olfactory appendage, and the 

 last bears four or five long apical setae. First joint of 

 the posterior antennas (fig. 3) long, and bearing a 

 minute 1-jointed secondary branch; second joint 

 about half as long as the first; third still shorter, 

 bearing two small setae and a long, slender, curved 

 claw. Mandible (fig. 4) stout, stilet-shaped, almost 



