122 . CRUSTACEA. 



A. uncinata. Fig. 196 ; mag. \, 

 rugosa. 



Lerneojioda (De Blainv.). Arms long, united only 



at the tip ; body long, oval ; head short, thick. 



L. elongata (Shark). L. salmonea (Salmon), 



galei (Shark). Fig. 197 ; n. s. 



Family III. CHONDRACANTHADiE. 



Lernentoma (De Blainv.). Foot-jaws three pairs ; 

 two pairs of which are prehensile ; three pairs of 

 appendages to the thorax, which are divided, but 

 not jointed ; ovaries long. 



L. cornuta (Gills of Sole), 

 asellina (Gills of Gurnard), 

 lophii (Pouches of Angler). Fig. 198 ; n. s. 



Chondracanthus (De la Roche). As Lernentoma, 

 but the ovaries are short, broad, and flat. 



C. zei (Gills of Dory). 



lophii (Pouches of Angler). Fig. 199 ; n. s. 



Order III. SIPHONO STOMA TA . 



Head large, usually shield-like, furnished with 

 one pair of antennae, a sucker with style-formed 

 jaws, and foot-jaws which are anchor-like, and 

 prehensile. Thorax distinctly jointed ; its first 

 segment without feet. Abdomen rudimentary, ter- 

 minating in a small swimming-tail. 



Head thick, obtuse, with two slender, 

 cylindrical, bristle-like, many-jointed 

 antennae Pachycephala. 



Head shield-like, armed with frontal 

 plates ; antennae dilated, two-jointed . Peltocephala. 



