50 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Platyhelmintlies. 



New Cestode from Eagle.* — Pasquale Mola describes a new Cestode, 

 Davainea h&rtwigi, found in the intestine of Nisaetus fasciatus. When 

 the eagle was caught it had in its beak a wall-lizard, in the peritoneal 

 cavity of which cysts were found containing a cysticercus. This, the 

 author considers, is the same Cestode found in the eagle, and that 

 the life-cycle is completed between the two hosts, L. muralis and 

 iV. fasciatus. 



Para-uterine Organ of Tsenia nigropunctata.t — Pasquale Mola 

 describes this organ, first noted by Crety in 1890. It is a winding 

 tube, running in the middle line over each proglottis. It starts from 

 the uterus and runs forward with an undulating course. An account 

 of its histological features is given, and it is noted that cells pass 

 from this tube to the uterus, forming an abundant parenchyma ex- 

 tending to every small uterine pouch and enveloping the eggs. 



Classification of Cyclophyllidea.J — 0. Fuhrmann revises the classifi- 

 cation of this order, altering the system proposed by Braun. He re- 

 cognises ten families — Tetrabothrida3, Mesocestoididfe, Anoplocephalidae, 

 Davaineidre, Dilepinidas, Hynienolepidaa, Tseniidae, Acoleinidse, Amabi- 

 linidas, and Fimbriariidse — and nine sub-families, with a total of 66 

 genera. 



Action of Heat on Immature Mussel-fluke. § — Raphael Dubois 

 finds that Gymnophallus margaritarum Dubois can survive, for at least 

 48 hours, temperatures between 35° and 40° C, which are fatal to the 

 mussel. The new form, which results from the influence of the in- 

 creased temperature on the immature fluke, is probably a stage towards 

 the final form. Therefore it seems likely that the final metamorphosis 

 occurs in a warm-blooded animal, which is probably a bird. 



New RhabdocQela.|| — Nils von Hofsten describes three new Rhab- 

 doccela from moor-lochs in the island of Gotland, namely, Castrada 

 instructa, DaJJijeliu pallida, and D. succincta. 



Polyclads from the Somali Coast and a Revision of the Stylo- 

 chinse.^T — Adolf Meixner gives an anatomical account of a number of 

 polyclads, 13 species, collected by Ch. Gravier off the Somali coast, and 

 takes this opportunity of making a revision of the previously described 

 members of the family Stylochinse. 



New Marine Triclad.**— G. Du Plessis gives a description of a 

 beautiful little Triclad, Cercyra verrucosa sp. n. — so-called because of 



* Biol. Centralbl., xxvii. (1907) pp. 575-8 (5 figs.). 

 t Comptes Rendus, cxlv. (1907) pp. 87-90 (2 figs.). 

 % Zool. Anzeig., xxxii. (1907) pp. 289-97. 

 § C.R. Soc. Biol. Paris, xliii. (1907) pp. 502-4. 

 II Arkiv Zool., iii. (1907) pp. 1-15 (1 pi.). 



i Zeitschr. Wiss. Zool., lxxxviii. (1907) pp. 385-498 (5 pis. and 2 figs.). 

 ** Rev. Suisse Zool., xv. (1907) pp. 129-41 (1 pi.). 



