126 BRITISH OOPEPODA. 



1. NOTODELPHYS ALLMANI, Thorell. PL XXV, figs. 



110. 



? Notodelphys ascidicola, Allman. Ann. and Mag. Nat. Hist. 



vol. xx, pi. i, figs. 113 (1847). 

 Baird. Brit. Entom., p. 238, pi. xxx, 



figs. 7,8(1850). 



Allmani, Thorell. Bidrag till Kannedomen om 

 Krustaceer som lefva i arter af 

 Slagtet Ascidia, p. 31, tabs, i and 

 ii, fig. 1 (1859). 



? elegans, Thorell. Loc. cit., p. 39, tab. iv, fig. 5. 



? rufescens, Thorell. Ibid., p. 35, tab. ii, fig 2. 



Anterior antennas (fig. 2) shorter than the first 

 body-segment, stout at the base and gradually taper- 

 ing to the apex, densely beset along its whole length 

 with finely plumose hairs; the second joint is very 

 short, the first, third, fourth, and fifth large, the 

 fourth and fifth nearly equal, and twice as long as any 

 of the remaining joints, which are short and of nearly 

 equal length. Posterior antennae (fig. 3) robust, the 

 third and most slender joint being scarcely more than 

 twice as long as broad. Mandible palp (fig. 4) stout, 

 the outer branch 3-jointed.* The maxilla (fig. 5) 

 consists of a strongly clawed or setose prehensile 

 portion, with a branchial palp, which is composed of 

 two large and two small laminae, bearing marginal 

 plumose filaments. The anterior foot-jaws (fig. 0) 

 are very stout, bearing several short digitiform 



* This is misrepresented in the plate, the portion shown as a long 

 terminal joint being in reality the thickened base of the large apical 

 seta. 



