44 Crust. 
X. CRUSTACEA. 
Jahrb. Syst. xv, p. 136, pi. vi. B. lonqirostris, notes ; Steuer, t. c., 
p. 121, pi. iii, figg. 9 a & b. 
B. mixta, nov. nom. for microptera Sars (with varr. humilis, p. 276, lillje- 
borgi , p. 281), p. 275, pis. xli, figg. 8 & 9, xlii, figg. 1-9, xliii, figg. 1-9, 
xliv, figg. 1 & 2, descr.; Lilljeborg, Clad. Sueciae. 
B. sibirica , Siberia; Daday in Horvath’s Zool. Ergebn. Zichy ii, p. 445, 
pi. xxii, figg. 4 & 5. B. ornamenta , Nebraska ; Fordyce, Tr. Amer. 
Micr. Soc. xxii, p. 154, pis. xxii, fig. 1, xxiii, fig. 10. B. insignis 
(with varr. insignis , s. str., p. 270, var. devergens , nov., p. 272, var. 
gibberiformis , p. 273), p. 269, pis. xl, fig. 11, xli, figg. 1-7, globosa, 
p. 304, pis. 1, figg. 3-12, li, figg. 1-5 ; Lilljeborg, Clad. Sueciae : 
n. spp. 
Bosminopsis zernowi , Russia; Linko, Zool. Anz. xxiv, p. 347, n.'sp. 
B unops, discussed, p. 318, serricaudata , descr.; Lilljeborg, Clad. Suecke, 
p. 321, pi. Iii, figg. 11-14. 
Bythotrephes , discussed, p. 602, longimanus, p. 604, pis. lxxx, figg. 10-19, 
lxxxi, figg. 1 & 2, lxxxii, figg. 1-10 (var. longimanus , p. 606, var. 
arcticus, p. 612, var. brevimanus , p. 614), cederstroemii, p. 617, pis. 
lxxxii, fig. 11, lxxxiii, figg. 1-5, lxxxiv, figg. 1-7 (var. cederstroemii, 
p. 619, var. robustus, p. 621, var. connectens , p. 623), descr.; Lillje¬ 
borg, t. c. 
Camptocercus macrurus , notes; Fordyce, Tr. Amer. Micr. Soc. xxii, p. 160. 
C., discussed, p. 399, rectirostris , p. 402, pis. lxi, fig. 14, lxii, figg. 1-17 
(var. rectirostris , p. 403, var. biserratus , p. 408), macrurus , p. 410, 
pi. lxii, fig. 18, fennicus , p. 412, pi. lxiii, figg. 1-5, lilljeborgi, p. 413, 
pi. lxiii, figg. 6-i3, descr.; Lilljeborg, Clad. Sueciae. 
C. similis , Argentina ; Sars, Arch. Naturv. Christian, xxiii, No. 3, p. 89, 
pi. xii, figg. 4 & 4a, n. sp. 
Cephaloxus, subg. of Daphnia, def., p. 136, longiremis, p. 138, pis. xx, 
figg. 13—16, xxi, figg. 1 & 2, cristata , p. 142, pis. xxi, figg. 3-17, xxii, 
figg. 1-14, descr.; Lilljeborg, Clad. Sueciae. 
Ceriodaphnia scitida, notes on Nebraskan specimens ; Fordyce, Tr. Amer. 
Micr. Soc. xxii, p. 148. C., discussed, p. 183, reticulata, p. 184, 
pi. xxvii, figg. 1-10 (var. serrata, p. 189), megalops, p. 190, pis. xxvii, 
figg. 11-15, quadrangula, p. 192, pis. xxvii, figg. 16-25, xxviii, figg. 1- 
5 (var. hamata, p. 196), pulchella, p. 198, pi. xxviii, figg. 6-18 (var. 
microcephala, p. 201), setosa, p. 205, pi. xxix, figg. 1-7, laticaudata, 
p. 208, pi. xxix, figg. 8-14, rotunda, p. 211, figg. 15-22, descr.; Lill¬ 
jeborg, Clad. Sueciae. C. rigaudi, notes; Sars, Arch. Naturv. 
Christian, xxiii, No. 3, p. 20. C. meogops, p. 120, pi. iii, figg. 4 & 5, 
pulchella , p. 120, pi. iii, fig. 6, notes ; Steuer, Zool. Jahrb. Syst. xv. 
C. ajjinis, Sweden ; Lilljeborg, Clad. Sueciae, p. 202, pi. xxviii, figg. 19- 
28. C. richardi ; Sars, Arch. Naturv. Christian, xxiii, No. 3, p. 21, 
pi. iii, figg. 11-15 : n. spp. 
Chydorus sphcericus, p. 168, rugulosus , p. 169 ; Fordyce, Tr. Amer. Micr. 
Soc. xxii. C., discussed, p. 545, globosus, p. 547, pis. lxxv, figg. 18-27, 
lxxvi, fig. 1, oralis , p. 552, pi. lxxvi, figg. 2-17, latus, p. 557, pis. lxxvi, 
figg. 18 & 19, lxxvii, figg. 1-7, sphcericus, p. 561, pi. lxxvii, figg. 8-25, 
piger, p. 567, pis. lxxvii, figg. 26-29, lxxviii, figg. 1-9, gibbus, p. 573, 
pi. lxxviii, figg. 15-25, descr.; Lilljeborg, Clad. Sueciae. C. barroisi, 
p. 67, pi. xi, figg. la & b, poppei, p. 68, pi. xi, figg. 2 a-c, sphcericus, 
p. 69, notes ; Sars, Arch. Naturv. Christian, xxiii, No. 3. C. sphceri¬ 
cus, p. 127, pi. v, fig. 24, var. ccelata, p. 127, pi. v, fig. 25, notes ; 
Steuer, Zool. Jahrb. Syst. xv. 
C. pigroides, Sweden ; Lilljeborg, Clad. Sueciae, p. 571, pi. lxxviii, figg. 
10-14. C. eurynotus, Sao Paulo, p. 70, pi. xi, figg. 3 a-c, pubescens, 
Argentina, p. 71, pi. xi, figg. 4 a-c ; Sars, Arch. Naturv. Christian, 
xxiii, No. 3 : n. spp. 
