428 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
Endo-Parasites of Hyrax.* * * § — Herr N. Nassonow found in Procavia 
syriaca all the end opara sites previously recorded from this host, except 
Physalopfera spirula Ehrb. He discusses Anoplocephala hyracis Rud. 
( critica Pag.), Ascaris ( Crossophorus ) tentaculatus, Ascaris ( Crossophorus ) 
collaris Elirb., Oxyuris pugio Ehrb., and 0. flabellum Ehrb. 
Platyhelminthes. 
Helminthological Notes. — Dr. M. 0. Francaviglia f discusses the 
familiar Cysticercus pisiformis of the rabbit, and its adult form Tsenia 
serrata of the dog ; Tsenia crassicollis in the cat ; Dipylidium caninum in 
dog and cat ; Filaria quadrispina Dies, in Mustela foina, M. martes and 
Putorius communis. 
Dr. A. Andreini J describes a case of Echinococcus in the heart of a 
soldier. 
Helminths in Vertebrates of East Prussia.§ — Herr P. Miihling 
gives a list of 246 Helminths from East Prussia, and a description of 
some new and rare species. His memoir begins with an interesting 
historical essay, showing the important part which the naturalists of Ost- 
Preussen have had in the development of helminthology. 
Adult Tapeworms of Hares and Rabbits. || — Dr. C. W. Stiles has 
one of his careful memoirs on this subject, dealing with species of 
Davainea , Cittoisenia , Anoplocephala , Bertia, and Andrya, found as adults 
in species of Lepus. 
Archigetes.^T — Dr. Al. Mrazek gives a full account of the minute 
structure of Archigetes appendiculatus Batz., with notes on its life- 
history and systematic position. We regret the absence of a summary 
in a familiar language. 
Dactylocotyle.** — M. Paul Cerfontaine gives a diagnosis of this 
genus of Trematodes, a description of its reproductive system in parti- 
cular, and an account of the five well-established species which occur as 
parasites on fishes. 
Merizocotyle.ff — M. Paul Cerfontaine describes M. diaphanum from 
Baja batis, M. minus sp. n. from B. oxyrhynchus (?), and discusses the 
systematic position of the genus, which seems to belong to the Mono- 
eotylidm in the family Tristomese of monogenetic Trematodes. 
Reproductive Organs of Drepanidotsenia venusta.JJ — Mr. T. B. 
Rosseter describes the scolex and strobila of this tapeworm, whose life- 
history he recently discovered. He deals especially with the repro- 
* Arbeit. Lab. Zool. Warscbau Univ., 1897, pp. 199-216 (2 pis.) (Russian). See 
Zool. Centralbb, v. (1898) p. 819. 
f Boll. Soc. Rom. Stud. Zool., vi. (1897) pp. 206-10. 
x Tom. cit., pp. 227-33 (1 fig.). 
§ Arch. Naturgesch., lxiv. (1898) pp. 1-118 (4 pis.). 
|| Proc. Nat. Mus. U.S., xix. (1897) pp. 145-235 (21 pis.). 
4 SB. Bohm. Ges. Wiss., 1897, No. xxxii., 47 pp. (5 pis.). 
** Arch. Biol., xv. (1898) pp. 301-28 (1 pi. and 3 figs.). 
ft Tom. cit., pp. 329-66 (2 pis.). 
XX Journ. Quekett Micr. Club, vii. (1898) pp. 10-23 (2 pls.).''| 
