Plate 171
Fig. 875. Diarmostorchis blandingi (MacCallum, 1926) Ejsmont, 1927. After MacCallum, 1926.
Fig. 876. Enterohaematotrema palaeorticum Mehra, 1940.
Fig. 877. Spirorchis innominatus Ward, 1921. (A) Entire worm, ventral view. (B) Terminal genitalia and ovarian complex, ventral view. Orig. USNM Helm. Coll. No. 30867, Harwood's specimen.
Fig. 878. Henotosoma haematobium Stunkard, 1922. After Stunkard, 1922. (A) Entire worm, ventral view. (B) Posterior extremity, ventral view. Orig. USNM Helm. Coll. No. 51663, Ward's specimen.
Plate 172
Fig. 879. Hapalotrema loossi Price, 1934. After Looss, 1899 [as H. constrictum (Leard)] .
Fig. 880. Plasmiorchis orientalis Mehra, 1934.
Fig. 881. Neospirorchis schistosomatoides Price, 1934. (A) Anterior portion. (B) Posterior portion.
Fig. 882. Spirhapalum polesianum Ejsmont, 1927.
Fig. 883. Hapalorhynchus gracilis Stunkard, 1922.
Fig. 884. Unicaecum ruszkowskii Stunkard, 1925.
Plate 173
Fig. 885. Learedius learedi Price, 1934. Orig. USNM Helm. Coll. No. 32567, holotype.
Fig. 886. Monticellius indicus Mehra, 1939.
Fig. 887. Hemiorchis hardellii (Mehra, 1934) Mehra, 1939. After Mehra, 1934.
Fig. 888. Ommatobrephus singulare Nicoll, 1914.
Fig. 889. Dictyangium chelydrae Stunkard, 1943. Orig. USNM Helm. Coll. No. 51917, Price's specimen.
Fig. 890. Podocnemitrema papillosum Alho et Vicente, 1964.
Plate 174
Fig. 891. Vasotrema amydae (Stunkard, 1926) Stunkard, 1928. After Stunkard, 1926.
Fig. 892. Angiodictyum parallelum (Looss, 1901) Looss, 1902. (A) Entire worm, ventral view. (B) Showing excretory plexus. (C) Showing lymph system. After Looss, 1902.
Fig. 893. Microscaphidium reticulare (van Beneden, 1859) Looss, 1901. After Looss, 1899.
Fig. 894. Polyangium linguatula (Looss, 1899) Looss, 1902. After Looss, 1902.
Fig. 895. Polyangium colymbi (Poche, 1926) Price, 1937. After Poche, 1926.
Plate 175
Fig. 896. Octangium sagitta (Looss, 1899) Looss, 1902. (A) Entire worm, ventral view. (B) Showing excretory plexus. After Looss, 1899.
Fig. 897. Deuterobaris proteus (Brandes, 1891) Looss, 1902. After Looss, 1899.
Fig. 898. Octangium hasta Looss, 1902.
Fig. 899. Octangioides skrjabini Price, 1937. (A) Anterior half of body, lateral view. (B) Entire body. Orig. USNM Helm. Coll. No. 25912, holotype & paratypes.
Plate 176
Fig. 900. Pseudocleptodiscus margaritae Caballero, 1961.
Fig. 901. Dermatemytrema trifoliatum Price, 1937. (A) Ventral view, holotype. (B) Lateral view, paratype. Orig. USNM Helm. Coll. No. 25458, holotype & paratype.
Fig. 902. Parorientodiscus magnus Rohde, 1962.
Fig. 903. Catadiscus dolichocotyle (Cohn, 1903) Cohn, 1904.
Fig. 904. Kachugotrema amboinense Dwivedi, 1967.
Plate 177
Fig. 905. Allassostomoides parvus (Stunkard, 1916) Travassos, 1934. After Stunkard, 1917.
Fig. 906. Allassostoma magnum Stunkard, 1916.
Fig. 907. Pseudallassostoma heteroxenus (Cordero et Vogelsang, 1940) Yamaguti, 1958. After Cordero & Vogelsang, 1940.
Fig. 908. Ophioxenos dienteros Sumwalt, 1926. After Sumwalt, 1926. (Partly supplemented from paratype, USNM Helm. Coll. No. 7853).
Fig. 909. Pseudallassostomoides rarus (Rohde, 1963) n. comb. After Rohde, 1963.
Fig. 910. Nematophila grandis (Diesing, 1839) Travassos, 1934. After Caballero et al., 1958.
Plate 178
Fig. 911. Halltrema avitellina Lent et Freitas, 1939.
Fig. 912. Stunkardia dilymphosa Bhalerao, 1931.
Fig. 913. Schizamphistomoides spinulosus (Looss, 1901) Stunkard, 1925. After Looss, 1902.
Fig. 914. Parachiorchis parviacetabulatus Caballero, 1943.
Fig. 915. Quasichiorchis purvisi (Southwell et Kirshner, 1937) Skrjabin, 1949. (A) Entire worm, ventral view. (B) Same, lateral view.
Plate 179
Fig. 916. Helicotrema asymmetricum Travassos, 1922.
Fig. 917. Schizamphistomum scleroporum (Creplin, 1844) Looss, 1912. After Looss, 1912.
Fig. 918. Helicotrema magniovatum Odhner, 1912.
Fig. 919. Harmotrema laticaudae Yamaguti, 1933.
Fig. 920. Plesiochorus cymbiformis (Rud., 1819) Looss, 1901. After Looss, 1902.
Fig. 921. Bicornuata caretta Pearse, 1949. Orig. USNM Helm. Coll. No. 36966, holotype.
Plate 180
Fig. 922. Charaxicephalus robustus Looss, 1901.
Fig. 923. Choanophorus rovirosai Caballero, 1942. (A) Entire worm, ventral view. (B) Egg.
Fig. 924. Neopronocephalus triangularis Mehra, 1932.
Fig. 925. Macravestibulum obtusicaudum Mackin, 1930. After Mackin, 1930. Terminal genitalia supplemented from USNM Helm. Coll. No. 51698, paratype.
Fig. 926. Cetiosaccus galapagensis Gilbert, 1938.
Fig. 927. Diaschistorchis pandus (Braun, 1901) Johnston, 1913. After Johnston, 1913.