AMPHIPODA. 197 
Podocei'us denteXf sp.ii., Czerniavski, Mater, zoogr. Pont. p. 100, pi. 6. fig. 39, 
Black Sea. 
Ccrapm jnacrodactylm (Dana, as Pycttlus), var. po7itica, n., and C. pugnax 
(Dana), var. pojitica, n., Czerniavski, 1. c. p. 98, Black Sea. 
Sunamphitho'e valida, sp. n., Czerniavski, 1. c. p. 101, pi. 6. fig. 36, Black Sea. 
Ainphitlioe vaillantii, Lucas, var. potitica, n., Czerniavski, 1. c. p. 101, pi. 7. 
figs. 19-27, Black Sea. 
Gruhia, gen. nov. Allied to EurystheiiS) Bate. Antennse superiores fili- 
formes, pedunculo longo, tribiis articulis, primo elongate, secundo et tertio 
maxime attenuatis, paulisper in flagellum multiarticulatum exeuntes, fla- 
gello secundario uniarticulato, rudimentario ; antennae inforiores his breviores, 
pedunculo longissimo, articulis 4 composite. Pedes paris primi et secundi 
subchelati, secundi multo majores, fortissimi. Pedes spurii paris postremi 
biramei, ramis ambobus minutissiniis, rudimentariis, antecedentibus paris 
secundi aequales, paris primi paulo prominentes. Segmenta undecimum et 
duodecimum spinis subter armata, tredecinium inerme. Telson squamiforme 
integrum. — G)'. taw'ica, sp. n., Czerniavski, 1. c. p. 103, pi. 8. figs. 1-10, 
Crimea. 
Lil5MODIPODA. 
Caprellid^. 
Protella typica and intei'media, spp. nn., Czerniavski, Mater, zoogr. Pont, 
p. 91, pi. 6. figs. 7-10 and 11-13, Black Sea. 
Caprella pt'otelloides, fey'ox, and danilowskii, spp. nn. Czerniavski, 1. c. p. 92, 
pi. 6. figs. 14, 16, 20, and 21-34, Black Sea. 
ISOPODA. 
Fr. Muller proposes the following arrangement of the families 
of this order, which, he thinks, will better express the natural 
affinities between them than that used hitherto : — 
Suborder I. Scheerenasseln ” (Isopods vrith hands). 
Fam. 1. 2'anaidft;= Asrllotes MUropodcs of M.-Edwards. 
Suborder II. Isopods proper. 
A. Walking Isopods, I. marcheuy's, M.-Edw. 
a. Ligioids: Fam. 2. Bopyyddcs. 
3. Oniscid(B. 
h. Aselloids : 4. Asellid(s—Aselloteshomopodesoi M..-PidLW. 
6. Idoteidm. 
B. Swimming Isopods, I. nageurs^ M.-Edw. 
Fam. 0. Cymothoida;. 
7. SphiXTomidce. 
? 8. Pranizidcc. 
Fr. Muller, Jen. Z. Nat. vi. pp. 66-68. 
InOTEIDiE. 
Idotea U'icuspidata, P^sm.,—hasteri, Audouin, Rathke,=ac?/m^7^cr^rt, Eich- 
