278 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY'. 



Outer maxillipedes reaching considerably beyond the 

 end of the antennal scale. 



First pair of legs rather long, reaching beyond the end 

 of the antennal scale ; propodos as wide and more than 

 twice as long as the carpus. 



Second pair of legs with 7 -jointed carpus. 



Third pair of legs with three spines on the distal third 

 of the merus joint. 



Abdominal segments having the lower margin rounded 

 in the first four, acute in the fifth. 



Family Pandalim:. 



Genus Vandalus, Leach, 1814. 



Pandalus dance, Stimpson (Jour. Boston Soc. Nat. Hist., 

 vol. VI. (1857), p. 62, PL XXL, figs. 6 and 7. 



Many specimens. Length of largest 80 mm. 



SCHIZOPODA. 



Family Mysim:. 



Genus Hcteromysis, S. J. Smith, Rep. U.S. Com. 

 of Fisheries, Part I., p. 553, 1874. 



Heteromysis odontops, n. sp. PL XV., Figs. 3 — 6. 



Four males, four females with ova. Length of latter 

 11 mm. 



Body rather slender. 



Bo strum sub-acute, barely half the length of the eyes. 



Eyes short and stout, with a prominent distal tooth on 

 the inner margin. 



First legs, merus longer than the carpus and propodos 

 united, as 10 : 7, the last small and ill-defined; on the 

 carpus of the right leg 7 spines, viz., a single one and 

 3 pairs ; on the left leg of the same specimen only 3 



