CRUSTACEA. 
527 
(Fischer as Jjynccus), p. 178^ pi. 4. figs. 3, 4, in lakes and ditches, common j 
A. tenuicaudis (Sars) = ?yl. cmnptocercoides (Schddl.), p. 179, pi. 2. fig. 20, 
pi. 3. fig. 24, in ponds and ditches ; A. dentata^ sp. n., p. 179, pi. 4. figs. 0 , 7 , 
Lake Dallerup, only one specimen found; A. reticulata (Baird) = esoceVos^m 
(Schodl.) = gen. Graptoleheris (Sars), p. 180 ; A. guttata (Sars),pp. 181 &366, 
pi. 4. figs. 7, retictdata (Schddl.), Lake Huul-sd, one specimen only found ; 
A. intermedia (Sars), p. 365, pi. 4. fig. 9 ; A. transversa (Schddler as Pleuroxus) 
—pygmcea (Sars), p. 181, pi. 4. figs. 10, 11 ; A, rostrata (Koch as Lynceus) — 
gen. Alonella (Sars), p. 182, pi. 4. fig. 12; A. falcata (Sars)=gen. Ilarpo^ 
rhyncJius (Sars), p. 183, pi. 4. figs. 13, 14, in a little spring near the seaside. — 
British localities of L. quadrangularis, guttatm, and others given by Brady, 
Intell. Observ. xii. pp. 421, 422. 
Phrimra, g. n. Caput immobile, impressione nulla a thorace disj unctum, 
testa lata non carinata obtectum. Oculus adest. Testa corporis lata, oblonga ; 
longitudo marginum caudalium altitudine maxima animalis paulo minor. 
Cauda mediocris, teres, apice obtuso, dentibus sparsim obsita, unguibus mi- 
nimis, dentes magnitudine vix superantibus. Mas ignotus. P. rectirostris, 
sp. n., P. E. Miiller, 1. c. p. 184, pi. 4. fig. 16, locality unknown. 
Pleuroxus exiguus (Lillj. as Lynceu^=L. aculcatus (Fischer), P. E. Muller, 
p. 187, pi. 4. figs. 16, 17 ; P. truncatus (0. F. Miill. as Lynceus')^:? Peracantlia 
hrevirostris (Schddl.), p. 188, common; P. aduncus (Jurine asilfowoc.), p. 189, 
in ponds; P. trigonellus (0. F. M.),p. 189; P.personatus (Leydig) = ? Rhyaco- 
pthilus glaher (Schddl.), p. 191, pi. 3. fig. 28, pi, 4. figs. 21-2-3 ; P. hastatus 
(Sars) = fern (Sars), p. 193. — Brady enumerates the localities for British 
species, Intell. Observ. xii. p. 422. 
Chydorus splicericus (0. F. M.), P. E, Muller, I, c. p. 194, pi. 4. fig. 24. — 
Brady (/. c.) describes a variety, /arosa, p. 423, figs. 3-6. — L. harhatusj sp.n., 
Brady, 1. c. p. 422, pi.- 1. figs. 1-2, Ennerdale. 
Mo7iospilus dispar (Sars)=X. tcnuirostris (Fisch.), P. E. Muller, p. 196, very 
rare in mud. 
PoLYPHEMIDiE. 
Polyphemus pediculus (Be Geer as Monoculus)=^ocidus (0. Fr. Miill.) = 
stagnorvm (Fischer) hochii^ and ocrdus of Schddler, P. E. Muller, 
1. c. p. 200, pi. 6. figs. 19-21. — The same in Derwentwater, Brady, Intell. 
Observ. xii. p. 420. 
Rythotrqjhes cedcrstromn (Schod\.) = longimanus of Lilljeborg, P. E. Muller, 
1. c. pp. 203-214, pi. 4. fig. 29, pi. 6. figs. 1-18, pi. 6. fig. 7, found in one lake 
only, Esrom, but there always common. 
Podon inter mcdius (Lilljeborg) = Evadne polyphemoides of Claus, P. E. 
Muller, I c. pp. 215-220, pi. 6. fig. 22, pi. 6. figs. 1-4, in the Sund, near the 
surface; P. polyphemoides (Leuckart as Evadne) — Pleopis leuckaHii (Sars), 
p. 220, pi. 6. figs. 5, 6, with the preceding. 
Evadne nordmanni (Loven), P. E. Muller, 1. c. p. 222, pi. 6. figs. 8-10, 
common in the Sund ; E. spinifcra, sp. n., = jF. nordmanni of Lilljeborg, 
p. 225, pi. 6. figs. 11-13, with the former, but not common. 
Leptodora hyalina (Lilljeborg), P. E. MUller, 1. c. p. 226, pi. 6. figs. 14-21, 
in lakes near the surface, common. 
2 N 2 
