28 Crust. 
CRUSTACEA. 
DuLICHIIDiE. 
Dulichia septentrionalis^ Spitsbergen, 10-20 fath., and macera, Arctic 
Sea, 400-800 fath., spp. nn., Sars, 1. c. pp. 463 & 464. 
CAPRELLlDiE. 
Caprella microtuberculatciy sp. 1. c. p. 465, Arctic Sea, 70-180 fath. 
ISOPODA. 
Gerstacker, see supra. 
Circulatory organs described by Delage, Arch. Z. cxpcr. ix. pp. 1-87, 
pis. i.-vii., and pp. 124-147, pi. xi., see supra. 
Tanaid^e. 
Delage, 1. c. pp. 147-160, dwells on the differences of this family 
from the rest of the Jsopoda^ and regards the Tanaida as an archaic form, 
from which not only the Isopoda and Amphipoda^ but also the Podopli- 
thalmata^ may be derived. 
Tanais novoi-zealandioi (Thomson), Thomson, Tr. N. Z. Inst. xiii. 
p. 207, pi. vii. fig. 3, Dunedin Harbour, New Zealand, 4-5 fath. 
Paratanais cornutus^ sp. n., Sars, 1. c. p. 431, Arctic Sea, 191 fath. 
Gnathiid^. 
Anceus rohustus^ sp. n., Sars, 1. c. p. 432, Arctic Sea, 191 & 416 fath. 
ARCTURlDiE. 
Arcturus tuherculatus (Thomson), perhaps = Leachia nodosa (Dana), 
male and female described by Thomson, Tr. N. Z. Inst. xiii. p. 206, pi. vii. 
fig. 2, New Zealand. 
Arcturus coppingeri, sp. n., Miers, P. Z. S. 1881, p. 75, pi. vii. fig. 9, 
West Coast of Patagonia. 
luOTEIDiE. 
Miers gives a critical revision of this family, arranging it as fol- 
lows : — 
Subfam. I. Glyptonotinai. Sides of the head emarginate or cleft, and 
laterally produced beyond the eyes ; three anterior pairs of legs 
prehensile, pi. i. figs. 1-4. 
Only genus Glyptonotus (Eights), 5 spp., all northern. 
Subfam. II. Idotemce. Sides of the head not laterally produced, entire ; 
eyes lateral ; legs all ambulatory. 
Gen. 1. Idotea Body oblong-ovate, with the epirnera 
distinct, and more or less evident in a dorsal view ; 1-5 
