642 
Entozoen von Fischen. 
Anthocephalum gen. nov. Body articulate, taeniaeform ; head sepa- 
rated from body by neck; bothria four, unarmed, cruciformly diapoaed, 
mounted on very versitilo pedicels, wbich contract in alooholic speci- 
mena so aa to appear aessile. Borders of bothria very flexible, crenulate, 
with a single aupplemental disk on anterior edge ; face amooth ; no 
myzorhynchua; genital aperturea marginal. 
16. A. gracile ap. nov., 794 — 796. VII. 1 — 2. Trygon cen- 
trura, Valv. ap. 
17. Ory gmatobothrium angustum Linton 1889. 796 — 799. 
Carchariae obacurua, Valv. spir. Ueber 2000 sind in einem Fisch 
gefunden worden. 
18. Crosao bothrium laciniatum Linton 1889. 799 — 802. 
VII. 4. Odontaapia littoralia. 
Lecaniccphaluia gen. nov. Body taeniaeform, articulate, head trana- 
veraely flattened, circular or subquadrangular, and oonsiating of two 
diaciform platea. Posterior plate with four aupplemental diaks. Neck 
short or none. Genital apertures marginal. (Vielleicht stimmt dies mit 
v. Beneden’a Discobothrium fallax überein.) 
19. L. peltatum sp. nov., 802 — 805. IX. 2 — 4. Trygon oen- 
trura, Valv. ap. 
Tjlocephaium gen. nov. Body articulate; head globoae; bothria 
united into a globular diak and bearing four supplemental diaks, which 
are arranged in lateral pairs; myzorhynchua also globoae, aa large aa 
remainder of head; neck mcderately long. 
20. T. pingue sp. nov., 806 — 809. IX. 5 — 9. Ehinoptera 
quadriloba, Valv. spir. 
Das Genua Acanthobothrium v Ben., welches Die sing mit 
Cal lio b othri um vereinigt hat, wird von letzterem wieder getrennt. 
Call. Haken einfach, Acanth. Haken bifurcat. 
21. C a llio b o thr ium verticellatum Bud., 810 — 812. Mu- 
8telua cania, Valv. spir. 
22. C. Eachrichtii v. Ben., 812 — 816. VII. 512. Mustelua 
cania. 
23. Acanthobothrium paulum sp. nov., 816 — 819. VII. I — 7. 
Trygon centrura. 
Nach dieser Eintheilung würde C. coronatum Acanthobo- 
thrium coronatum heissen. 
24. Phoreiob othri um lasium Linton 1889. 819 — 820. Car- 
charias obacurus. 
Piatybothrium gen. nov. „Body articulate, taeniaeform. Head decidedly 
flattened, squarish, trapezohedral. Bothria four, subtri angular, sea- 
aile, arranged in marginal pairs, armed with compound hooks, and each 
terminating posteriorly in a cup-like depresaion or loculua, a single 
indistinct circular depression (aupplemental disk?) on each bothrium in 
front of hooks. Genital aperturea marginal. (1 apecimen.)“ 
25. Piatybothrium cervinum sp. nov., 820 — 823. VIII. 
8 — 10. IX. 1. Carehariua obacurua. Valv. sp. 
Thjsanocephalum gen. nov. „Body articulate, taeniaeform. Head 
aeparated from body by neck; very amall, quadrangular, with four aessile 
bothria, each armed with two simple hooks and provided with a single 
