the Trondhjem Fiord. 479 



Under the last-mentioned name Delia Valle also includes 

 H. Lulhockiana, G. O. Sars, while H. LuhhocMana of British 

 authors he retains as a distinct species ; but H. Luhbockiana^ 

 G. O. Sars, is undoubtedly the same as that of British authors, 

 while the species described as //. LuhhocJciana by the Italian 

 author would seem to be something different, inasmuch as he 

 could not in the large figure he gives have omitted to draw 

 the remarkable serrated spines of the propodus of the perseo- 

 pods. These spines have been figured by Bate, Stebbing, and 

 yars. 



64. Acidostoma ohesum, Bate. 

 Kiidberg, 20-40 fathoms. 



65. Tchnopiis spinicornis^ Boeck. 

 Eodberg, 150 fathoms. 



Delia Valle makes this, as well as /. affinis and /. calceolus 

 of Heller, synonyms of /. taurus, A. Costa. With regard 

 to /. calceolus he is probably right, bat specimens of 

 Heller's /. affinis, kindly given me by that autlior, agree with 

 /. taurus, and these forms are markedly distinct from /. spini- 

 cornis in the nnich more slender antennules and antennae and 

 in the absence in these of calceola in the female, as well as 

 the character of the nail of the second gnathopod (see Heller, 

 fig. 22, and Delia Valle, fig. 12). Sars makes /. calceolus of 

 Heller the male of /. spinicoryiis ; and Heller's figure of the 

 first gnathopod of /. calceolus does not agree with that limb 

 in I. taurus, moreover the differences illustrated in Delia 

 Valle's figs. 12 and 13 look something more than varietal. 



Sars has not noticed the peculiar modification of the second 

 uropod in the male of /. spitiicornis, which corresponds to 

 that figured by Delia Valle (pi. xxvii. fig. 2) as found in 

 /. taurus, and which occurs also in some other species, for 

 example in the male of the genus Triphosites (see Sars, 

 pi. xxix. fig. 1, up.'^). 



66. Amhasia Danielsseni, Boeck. 

 Eodberg, 100-300 fathoms. 



67. Aristias neglectus, Hansen. 



1872. Aristias tumidus, Boeck (nee Kroyer), Skand. og Arkt. Amphip. 



p. 148, pi. iii. fig. 4. 

 1887. Aristias neglectus, Hansen, Oversigt Gronlands Amphip. Malakos. 



Hafskrebsdyr, p. 86, pi. ii. figs. 3-36. 

 1890. Aristias Audouinianus, G. 0. Sars, Crust. Norway, Amphipoda, 



p. 48, pi. xvii. fig. 2 (nee Lysianassa Audouiniana, Bate). 

 1893. Aristias neglectus, Delia Valle, /. c. p. 844, pi. vi. tig. 9, pi. xxvi. 



figs. 16-31. 



