ISOPODA. 
Crust. 44 
Tribe 2. Sphasuomoidea. Mouth manducatory, pleon not fully 
segmented ; caudal appendages leaf-shaped. Fam. 
Sphceromidce^ Idotheidm, and Munnopsidce. 
Tribe .8. Cirolanidea. Mouth suctory. 
Mouth truly manducatory. Fam. Cirolanidce. 
Mouth biting. Fam. Serolida;. 
Mouth haustellatory. Fam. Cymothoidce. 
Oral appendages rudimentary. Fam. Bopyridce. 
Oral appendages wanting. Fam. Gryptoniscidoi. 
Tana ID JE. 
Critical notes concerning the distinction of genera by Kossmann, 1. c. 
p. 102. 
Tanais vittatus (Rathke) = tomentosus (Kroy.) = hirticaudatus 
(Bate) ; Harger, Rep. Isopod. pp. 418 & 419, pi. xiii. figs. 81 & 82, 
Connecticut. 
Leptochelia algicola (Harg.) = edwardsi (Bate & Westw.), L. limicola 
and rapax (Harg.), Jilum (Stimps.), and ccxca (Harg.) ; id. 1. c. pp. 421- 
428, pi. xii. fig. 80, & pi. xiii., New England. 
Paratanais erythrma, Red Sea, and krceyeri, Mediterranean, spp. nn., 
Kossmann, 1. c. pp. 103 & 105, the first pi. vii. figs. 1-4. P. edvmrdsi 
(Kroy.), figs. 5-8. 
Paratanais tenuis, sp. n., Thomson, Ann. N. H. (5) vi. p. 2, pi. i. fig. 1, 
New Zealand. 
Anthurid.e. 
Anthura poUta (Stimps.) = hrunnea (Harg.); Harger, 1. c. pp. 398-402, 
pi. xi. figs. 68 & 69, New England. 
Paranthura hrachiata (Stimps.) ; id. 1. c. pp. 402-405, pi. xi. fig. 70, 
Bay of Fundy, 59-115 fath. 
Philanthura tenuis (Harger) ; id. 1. c. pp. 406-408, pi. xi. figs. 71-73, & 
pi. xii. fig. 74, New England, 9-19 fath. 
GnATHIID^ (PrANIZIDvE). 
Gnathia cerina (Stimps., as Praniza) = Anceus americanus (Stimps.); 
id. 1. c. pp. 410-413, pi. xii. figs. 75-79, New England. 
Anceus rhinohatis, sp. n., Kossmann, 1. c. p. 105, pi. viii. figs. 1-6, Red 
Sea, in the nose and gill-holes of Rhinohates halavi. 
, Arcturid.®. 
Astacilla granulnta (G. O. Sars, as Leachia) = americana (Harg., 
1878) ; Harger, 1. c. pp. 364-367, pi. viii. figs. 48-51, & pi. ix. fig. 52, 
George Bank and Nova Scotia. 
