PONTOPHILUS. 
CRANGON. Leach. 
Antenne superiores breviores setis duabus in e&dem feré lined horizontali insertis: seta 
interiore longiore. 
inferiores corporis longitudine setacew decrescentes, squam& ad apicem externé 
unidentata pedunculo annexa: articulo primo ultra medium squame producto. 
Palpi pediformes avticulis quatuor exsertis articulo ultimo acuminato precedente duplo feré 
longiore. 
Pedes decem: par anticum majus compressum subdidactylum ; pollice brevissimo: par 
secundum tenue brevissimum didactylum: par tertium tenue elongatum ungue simplici 
instructum : paria £ et 5 precedente crassiora unguibus compressis instructa. 
Abdomen 6-articulatum. 
Cauda pentaphylla: lamellis lateralibus angustis. 
Upper antenne shortest, with two sete inserted in nearly the same horizontal line ; the 
interior longest: under antenne as long as the body, setaceous, with a large squama at their 
base, with a spine in the apex externally ; the first joint produced beyond the middle of the 
squama. Pediform palpes with three exserted joints ; the last acuminated, and almost twice 
the length of the preceding joint. Legs ten: first pair longest, compressed, subdidactyle, 
with the thumb very short: second pair slender, very short, didactyle: third pair slender, 
elongate, furnished with a single claw: fourth and fifth pairs thicker than the third, and 
furnished with compressed claws. Abdomen six-jointed. Tail composed of five plates ; the 
lateral ones narrow. 
