APPENDIX. 



505 



AMPHIPODA. 



NATAWRIA. 



AMPELISCIDES. 



( Vol. J. p. 137.*') 



Genus— HAPLOOPS. (Lilljehorg.) 



Oeneric character. Clobely allied to Ariqodisca, bxit difl'ers in 

 having the cephalon less anteriorly produced, and the organs of 

 vision reduced to two. 



HAPLOOPS TUBICOLA. 



Specific character. Superior antennas about one-third of the length of the 

 animal, ciliated beneath, without an accessory filament. Two pairs of gnatho- 

 poda small and hairy. First and second pereiopoda terminated by long stylate 

 fingers. 



Length, about half an inch. 



Haploops tubicola. Lilljeborg, Of vers, af Kongl. Yet. Akad. 1855. 



Bruzelius, Skand. Amph. Gam. p. 88. Spenoe 

 Bate, Cat. Amph. B. M. p. 371. 



Ampelisca Eschriclitii^ Lilljeborg, 1. c. 1852, p. 6. 



Cephalon anteriorly depressed, without a rostrum, having 

 the superior antennse affixed to the apex, about one-third the 

 length of the animal, and inferiorly ciliated ; inferior antennEe 

 slightly longer than the superior : gnathopoda subequal, 

 hairy : first two pairs of pereiopoda with long stylate dactyla, 



