48 Verm. 
VERMES. 
resemblance to the Cercariae of Trematodes. They both occur in the 
body-cavity of Gammarus pulex. The tail of these forms is regarded as 
homologous with the tail of the Cercaria, and the tailed Oysticercoids 
may represent primitive stages, as they are only found in Invertebrates, 
while the Oysticercoids of the Vertebrates have arisen secondarily from 
the tailed forms. The Taenia belonging to the new Oysticercoids probably 
occur in birds, and are named (though as yet unknown) T. bifurca , n. sp., 
and T. Integra, n. sp. 
Linstow (4). Linton (3). 
Moniez (4) : Notes i & ii. Moniez (5). Mrazek. 
Railliet (1). Rosseter. 
TREMATODA. 
New Genera and Species. 
Amphistomum chordale , Burckhardt, n. sp. 
1 Anoplodiscus, n.g., for A.richiardii , n. sp., Sonsino (5). 
Apoblema slossichii , Monticelli (5), n. sp. 
Cercaria mirabilis , Braun (3), n. sp. 
Dkbjmozoon lampridis, LCnniiero (2), n. sp. 
Diplostomum spathula , abbreviatum , longum, spathulceforme, Brandes (1), 
n. spp. 
Diplozoon nipponicum, Goto (2), n. sp. 
Distomum flagellatum , Moniez (4, Note iii) ; D. ( Polyorchis ) formosum, 
Sonsino (3) ; D. pancreaticum, Railliet (3) ; D. pedocotyli, Leidy (2) : 
n. spp. 
Fasciola americana , Hassall, n. sp. 
Hemistomum ellipticum, Brandes (1), n. sp. 
Holostomum vaginatum , bursigerum , eustemma, cinctum , bulbosum, ellip- 
ticum., inegalocephdlum, Brandes (1), n. spp. 
Microcotyle salpce, Parona & Perugia (2) ; M. pancerii , Sonsino (7) ; 
n. spp. 
* Pseudaxine, n. g., for P. trachuri, n. sp., Parona & Perugia (1). 
Tristomum histiophori , Bell ; T. interruptum , leuinseni, pp. 101 & 122, 
Monticelli (4) : n. spp. 
New Descriptions (Anatomy, etc.), Notes. 
Blanchard (4) : Note x. Dintoma lanceolatum, Mehlis, 1825, pp. 466 
& 467. Note xi. D. ascidioides, Van Ben., 1873, p. 467. Note xii. 
D. heteroporum , Duj., 1845, pp. 467 & 468. Note xiii. D. ventricosurn, 
Pallas, 1774, pp. 468-478. Note xiv. D. gigas, Nardo, 1827, pp. 479 & 480. 
Note xv. D.farioni8, 0. F. M., 1788, p. 481, with figure of female genital 
apparatus. 
Blanchard (8) : Distoma heterophyes. 
Brandes (1) : Anatomy of Holostomidai. 
