TREMATODA. 
Verm. 59 
Lepidophyllum n. g. for L. steenstrupi, n. sp., from Anarrhichas minor, 
Odhner, Centrbl. Bakter. xxxi, p. 68, fig. 3. 
Leptophyllum n. g. for L. stenocotyle, n. sp., South America, from Herpeto- 
dryas fuscus, anatomy, Cohn, op. cit. xxxii, pp. 880-882, figg. 4 & 5. 
Liolope n. g. for L. copulans, n. sp., Japan, from Cryptobranchus japonicus, 
anatomy and copulation, Cohn, t. c., pp. 877-880, 3 figg., n. sp. 
Loborckis mutabilis from Anguilla vulgaris, Triest, structure, Stossich, 
Arch, parasit. v, pp. 578-582, 1 fig., n. sp. 
Lopkotaspis vallei (= L. adhaerens Looss) in Thalassochelys corticata, Egypt, 
structure, Looss, Zool. Jahrb. Syst. xvi, pp. 418-430, pi. xxi, figg. 
1-9. 
Lyperosomum longicamda (= Distomum longicauda Rud.) in Corvus cornix, 
p. 106, fig. 65 ; L. lobatum ( = Dicrocoelium lobatum Raill.) in Pica 
caudata , p. 110, fig. 67 ; L. corrigia in Tetrao tetrix, p. Ill, fig. 68 ; 
L. rudectum in Ibis ccerulescens , p. 112, fig. 69; L. salebrosum in 
Cypselus melba, p. 113, fig. 70 ; synonymy and structure, Braun, t. c. 
Macraspis ; revision of genus, Nickerson, Zool. Jahrb. Syst. xv, p. 618. 
Macrodera naja (= Distomum Rud.), Rizzo, Arch, parasit. vi, p. 28. 
Mesaulus n. g. for M. grandis [ = Distomum grande Braun], in Platalea 
ajaja , structure, Braun, Zool. Jahrb. Syst. xvi, pp. 24-28, figg. 16-19. 
Metorchis xanthosomus in Colymbus septentrionalis, pp. 7-10, figg. 4-7 ; M. 
crassiusculus, p. 10, structure, Braun, t. c. 
M. cceruleus in Cairina moschata, Brazil, Braun, t. c., jd. 11, fig. 8, n. sp. 
Microlistrum ; definition, p. 55 ; M. cochleariforme in Pelecanus aquila, 
p. 56, fig. 35 ; M. cochlear in Sterna spp., p. 58, fig. 36 ; M. spinetum 
in Rhynchops nigra, pp. 59-62, figg. 37-39 ; synonymy and structure, 
Braun, t. c. 
Monorchis monorchis (Stoss.), anatomy, Looss, Centrbl. Bakter. xxxii, 
pp. 115-119, fig. 1. 
M. parvus, Triest, from Sargus spp., Looss, t. c., p. 118, fig. 2, n. sp. 
Monostomidce ; validity of the name discussed, Looss, Zool. Jahrb. Syst. 
xvi, pp. 700-731. 
Monostomum mutabile, Triest, Stossich, Boll. Soc. Adriat. xxi, 1901, 
40 pp., 9 pis. 
M. oculobium, from the eye of Vanelli melanogastri, anatomy, Cohn, Zool. 
Anz. xxv, pp. 712-718, 4 figg., n. sp. 
Nephrocephalus n. g. for N. sessilis , n. sp., Soudan, from the crocodile, 
Odhner, Ofv. Ak. Forh. lix, p. 27. 
Ochetosoma monstruosum in Corone venustissima, structure, Braun, Zool. 
Jahrb. Syst. xvi, pp. 65-67, figg. 41 & 42. 
OctobothHum (?) esmarkii, Shetland, in Gadus esmarJcii, Scott, Rep. Fish. 
Board Scotland iii, p. 147, pi. viii, fig. 22, n. sp. 
Oistosomum n. g. for O. caduceus, n. sp., Soudan, from the crocodile, 
Odhner, Ofv. Ak. Forh. lix, p. 26. 
Opisthorchis, systematic position discussed, Looss, Zool. Jahrb. Syst. xvi, 
pp. 775-778; O. felineus, O. sinensis, O. conjunctus, in liver of Ortha- 
goriscus mola, anatomy and pathological effects, Bossuat, Arch, 
parasit. vi, pp. 188-192 ; 0. interruptus, in Alcedo viridirufa, characters, 
Braun, Zool. Jahrb. Syst. xvi, pp. 5-7, fig. 2; O. tenuicollis, Russia, 
in cats and fish, anatomy, Kamensky, Trudui Kharkov. Univ. xxxv, 
pp. i-xxiii. 
0. piscicola, White Nile, from gall bladder of Gymnarchus niloticus, Odhner, 
Centrbl. Bakter. xxxi, p. 152, n. sp. 
Orchidasma amphiorchis, in Thalassochelys corticata, Egypt, structure and 
synonymy, Looss, Zool. Jahrb. Syst. xvi, pp. 463-468, pi. xxiii, 
figg. 25-29, pi. xxiv, fig. 39. 
Orchipedum, definition, p. 19; 0. tracheicola in Anas fusca, structure, 
Braun, t. c., pp. 20-23, figg. 14 & 15. 
