32 Crust. 
X. CRUSTACEA. 
Acropei'us angustatus , p. 311; Birge, t. c. A. leucocephalus , p. 513, dis- 
tribution in Austria and Hungary ; Steuer, Verh. Qes. Wien, xlvii. 
Alona ajfinis, p. 514, quadrangular is , p. 515, lineata, costata , guttata , p. 516, 
testudinaria , p. 517, distribution in Austria and Hungary; Steuer, 
Ac. A. cambonei , Concepcion, Chili, p. 289, figg. 35 & 36, davidi, 
n. var. ihei'ingi , Rio Grande do Sul, Brazil, p. 294, figg. 42 & 43; 
Richard, Mem. Soc. zool. France, x. A. falcata, p. 305, pi. xiii, 
figg. 9 & 10; Birge, Tr. Wisconsin Ac. ix. A., sp., Buenos Aires, 
p. 330; Richard, An. Mus. Buenos Aires, 1897. 
A. poppei, p. 290, figg. 37 & 38, mulleri , p. 292, figg. 39-41, Lunache, Chili, 
Richard, Mem. Soc. zool. France, x, n. spp. 
Alonella rostrata, p. 305 ; Birge, Tr. Wisconsin Ac. ix. 
Alonopsis elongata , p. 56, fig. 28; Fri£ & VIvra, Arch. Landesdf. Bohmen, 
x. A. latissima, var. media , p. 302 ; Ross, Amer. Natural, xxxi. 
Anchistropus minor , N. Wisconsin, p. 309, pi. xiii, figg. 2-5, Birge, 
Tr. Wisconsin Ac. ix, n. sp. 
Apagis , n. g., defined, p. 23, for cylindrata , Caspian Sea, p. 24, pi. iii, 
figg. 1 & 2, Sars, Annuaire Mus. St. Petersb. 1897, n. sp. 
Bosmina bohemica, p. 55, fig. 26; Fri6 & Vavra, Arch. Landesdf. Bohmen, 
x. B. longicornis , p. 510, bohemica , p. 511, distribution in Austria 
and Hungary ; Steuer, Verh. Ges. Wien, xlvii. B. obtusirostris , 
p. 300, pi. xii, figg. 10 & 11; Birge, Tr. Wisconsin Ac. ix. 
B. stuhlmanni , S. Africa, p. 6, figg. 15 & 30, Weltner, Die Cladoceren 
Ost-Afrikas, n. sp. 
Bosminopsis deitersi , freshwater, La Plata, p. 283, figg. 28-31 ; Richard, 
Mem. Soc. zool. Franco, x. 
Bunops , n. g., defined, p. 302, pi. xiii, fig. 1 ; Birge, Tr. Wisconsin Ac. ix. 
Camptocercus rectirostris , p. 512, distribution in Austria and Hungary ; 
Steuer, Verh. Ges. Wien, xlvii. 
Cercopaqis , n. g., defined, p. 4, for ( Biitliotreptes ) social is. p. 5, pi. i ; Sars, 
Annuaire Mus. St. Petersb. 1897. 
C. robusta , p. 16, pi. ii, figg. 1 & la, micronyx , p. 18, pi. ii, figg. 2 & 2a, 
prolongata , p. 19, pi. ii, figg. 3 & 3a, tenera , p. 20, pi. ii, figg. 4 & 4a, 
anonyx , p. 22, pi. ii, figg. 5 & 5a, Caspian Sea, Sars, t. c. n. spp. 
Cenodaphnia acanthina , Portage la Prairie, Manitoba, p. 296, figg. in text, 
Ross, Amer. Natural, xxxi; C. bicuspidata, S. Africa, p. 5, figg. 10, 11, 
& 14, Weltner, Die Cladoceren Ost-Afrikas ; G. lacustris, N. Wisconsin, 
p. 294, pi. xii, figg. 6-9, Birge, Tr. Wisconsin Ac. ix : n. spp. 
C. cornuta , sp. in E. Africa, p. 5; Weltner, Die Cladoceren Ost-Afrikas. 
C. reticulata , consors } p. 298; Ross, Amer. Natural, xxxi. C. quad- 
rangular p. 295 ; Birge, Tr. Wisconsin Ac. ix. C. reticulata , and 
2 spp. indet., p. 278; Richard, Mem. Soc. zool. France, x. C. reticu- 
lata, pulchella , p. 509, distribution in Austria and Hungary ; Steuer, 
Verh. Ges. Wien, xlvii. 
Chydoi'us faviformis, Lakes at Minocqua, p. 307, pi. xiii, figg. 7 & 8, 
Birge, Tr. Wisconsin Ac. ix; C. poppei , Lunache, Chili, p. 296, 
figg. 44 & 45, Richard, Mom. Soc. zool. Franco, x : n. spp. 
C. mgulosus, p. 308, pi. xiii, fig. 6; Birge, Tr. Wisconsin Ac. ix. C. 
latus, p. 518, punctatus , sphcericus, p. 519, distribution in Austria and 
Hungary ; Steuer, Verh. Ges. Wien, xlvii. 
Dactylura , n. g., defined, p. 240, for pubescens , Staithes, Yorks., p. 240, 
pi. viii, figg. 1-10 & 20, Brady, Nat. Hist. Tr. Northumb. xiii, n. sp. 
D. mugna — Daphnia magna, p. 241, pi. x, figg. 1-8 & 18; Brady, t. c. 
Daphnia hamata, Northumberland, p. 227, pi. vii, figg. 9-17, Brady, t. c . ; 
kirimensis , E. Africa, p. 2, figg. 1-3, Weltner, Die Cladoceren Ost- 
Afrikas ; n. spp. 
D. longispina , in E. Africa, p. 2, jardinei , n. var. barbata, p. 3, figg. 4-9 
& 21-29; Weltner, Die Cladoceren Ost-Afrikas. D . obtusa , p. 626; 
