CRUSTACEA. 
525 
Daphniida!. 
Latona setifcra, V. E. Muller, 1. c. p. 07, pi. 6. figs. 22-24, on peaty bottoms 
of lakes and pools, not common. 
Daphnclla hvachyura (Lievin as Sida) = D. wingii (Baird) = 
leuchtenhergianum (Fischer), 1. c. pp. 100 & 336 ; D. brandtiana (Fischer as 
Diapha7ioso7na) = Sidcea crystallina (Fischer) = D. hi'achyura of Sars, not 
Lievin, from Esrom Lake. 
Sida crystallina (O. F. Miiller), including S, elongata (Sars), L c. p. 101, 
common. 
llolopcdium gihherum (Zaddach), 1. c, p. 103, in the middle of lakes, near 
to the surface, not common. 
Daphnia schccffcri (Baird) (JAvl\.)^pulex of Straus and Koch= 
magna of Lillj. and Leydig, P. E. Muller, 1. c. p. 108, in fresh and brackish 
water ; D. pulex-= magiia of Fischer, p. 110, pi. 1. fig. 4 ; D. longispina (0. F. 
MiilL), p. 112, pi, 1. figs. 1, 2, two varieties differing in the length of the spine, 
frequent in clear waters ; D. pellucida^ sp. n., p. IIG, pi. 1. fig. 6, in the middle 
of some lakes, near the surface, not common ; D. galeata (Sars), p. 117, pi. 1. 
fig. 6, two varieties differing by the shape of the front. Lake Esrom ; D. kahl- 
hergensis (Schodler), p, 118, pi. 1. figs. 7, 8, from the same locality ; 1). cu- 
cullaia Hyalodaplmia herolinensis (Schodler), p. 120, pi. 1. fig. 23, 
several inland lakes. 
Daphnia jardinii (Baird) described and figured from specimens taken in 
Rydal Water by G. Brady, who thinks that its claim to specific rank may be 
reasonably doubted. Intellect. Observ. xii. p. 419, pi. 1. figs. 9, 10. 
Simocephalus vetulus (0. F. Miill. ?, ’Bohd) — Daphnia sima of the elder 
authors, P. E. Muller, 1. c. p. 122, pi. 1. figs. 20, 27, very common ; S. exspi- 
nosns (Koch as Daphnia)^ p. 122, pi. 1. fig. 24, two varieties distinguished by 
the shape of the head; S. serrulatus (Koch as Daphnia) = D. intermedia 
(Lievin) = D. hrandtii (Fischer), p. 123, pi. 1. fig. 26, in peaty waters. 
Scapholehej'is mucronata (0. F. Miill. as Daphnia) ^ a variety with homed 
ivoni= Monocidus hispmosus (Be Geer) = 6(5. cornuta (Schodler), 1. c. p. 124, 
common in clear waters. 
Ceriodaphnia megops (Sars) = P D. venti'ieosa (Koch)=? Z>. quadrangula of 
Lievin, I c. p. 120, pi 1. figs. 9, 10 ; C. reticulata (.Turine as Monoculm) — D, 
quadraiigula of Lilljeborg and Schodler, p. 127, pi. 1. figs. 11, 12 ; C. pulcliella 
(Sars), p. 128, pi. 1. figs. 13, 14 ; C. punctata, sp. n,, p, 129, pi. 1. fig. 16, Lake 
Esrom, rare; C, quadi'angula (0. F. Miill. as Daphnia) — D. reticulata of 
Baird, p. 130, pi. 1. figs. 10-18 ; C. laticaudata, new name for C. quadrangula 
of Sars, p. 130, pi. 1. fig. 19, in pools on muddy ground ; C. rotunda (Straus as 
Daphnia), p. 131, pi. 1. figs. 20-23, same habitat. 
Moina hrachiata (Jurine), 1. c. p. 133, pi. 2. fig. 22, in muddy ponds. 
Mao'othi'ix rosea (Jurine), 1. c. p. 130, pi. 3. figs. 1-4 ; M. laticmmis (Jurine) 
= D. cm'virostris (Fischer), p. 137, pi. 3. fig. 6. 
Drepanoihrix dentata (Lov6n)=B. scutigera (Sars) = Z). hamigera (Sars), 
/. c. p. 137, pi. 2. fig. 13, in ponds, very rare. — The latter not unfrequent in 
the upland districts of the north of England and south of Scotland, frequent- 
ing lakes and clear water. Brady, Intell. Observ. xii. p. 420. 
Lathonura rectii'ostris (O. F. Miill.) = j9. mystacina (Fischer) = Z. spinosa 
(Schodler), 1. c. p. 139, in clear waters. 
Bos77iina longirostris (0. F. Miill), 1. c, p. 140, pi 3. figs. 8,9; B. cornuta 
1S68. [voL. V.] 2 N 
