672 SUMMAKY OF CURRENT RESEARCHES RELATING TO 



Species of Strongylus in Gibbon.*— H. Smidt in the course of 

 examination of forty gibbons (Hylobates syndactylies and H. ag His) found 

 several instances of severe affection of the large intestine. This proved 

 to be due to the presence of Strongylus ovatus v. Linstow, which was 

 found in various situations. Particulars with regard both to the para- 

 site and to the lesions produced are given. 



Structure of Mermis albicans, v. Sieb.f — Max Rauther, in the 

 first of a series of studies on the structure of Nematodes, describes some 

 of the macroscopic and microscopic features of this species. He deals 

 specially with the ectodermal organs — the skin, the neuro-muscular 

 system, certain parts of the alimentary canal, viz. oesophagus and cloaca. 

 The mid-gut, which is transformed into a holder of reserve-stuffs, and the 

 genital apparatus are only slightly dealt with. 



New Nematodes and other Parasites.! — 0. von Linstow describes 

 the following Nematodes— hearts sphyranurce sp. n. from the body- 

 cavity of Sphyranura barracuda ; A. halicoris Baird, from the pylorus 

 of the duo-ong ; Filaria macrolaimus sp. n. from the orbit of Centrums 

 subelegans ; Trichocephalus alcocki sp. n. from the stomach of Cervas eldi ; 

 Rhabditis tripartita, from a monkey. He discusses the life-history of 

 Parachordodes tolosanus, and also describes Hemistomum attenuatum 

 sp. n. from Buteo vulgaris, Holostomum excisum from Aegolius otus and 

 Strix flammea, and Hymenolepis inflata Rud. from the coot. 



Platyhelminthes . 



Taeniae of Birds of Prey.§ — 0. Fuhrmann describes four forms. 

 He notes that the birds of prey of America harbour a quite special 

 Tamia-fauna, whilst none of the known Taeniae occurring in European- 

 Asiatic- African birds of prey are found in American representatives of 

 the same group. Another interesting point is that day and night birds 

 of prey, though in many cases they have the same food, are the hosts of 

 quite different Taeniae. In the one group fifteen species are known, and 

 in the other, two. The latter belong to one genus {Paruterina), the 

 representatives of which live only in nocturnal birds of prey. 



Studies on Tapeworms. || — 0. Fuhrmann continues his study of the 

 Cestodes of birds of prey, and describes Anomotamia trapezoides sp. n. ; 

 Paruterina angustata g. et sp. n. (with a " paruterine " diverticulum in 

 front of the uterus into which the ova pass at a late stage) ; Dilepis 

 oligorchida sp. n. ; Oligorchis strangulatus g. et sp. n. (near Hymenolepis, 

 but with four testes instead of three) ; Dipylidium avicola sp. n. ; and 

 Taenia heteracantha sp. n. 



J. Bourquin 1[ describes Davainea latoralis sp. n. from Galeopithecus 

 volans, which has a " ciliform " cuticular investment over almost the 

 whole surface of the scolex, with the exception of the suckers. 



* Centralbl. Bakt. Parasitenk., xli. (1906) pp. 646-51 (4 figs.), 

 f Zool. Jahrb., xxiii. (1906) pp. 1-76 (3 pis.). 

 % Op. cit., xxiv. (1906), pp. 1-20 (1 pi.). 



§ Centralbl. Bakt. Parasitenk., lte Abt., xli. (1906) pp. 79-89 (32 figs.). 

 P Tom., cit., pp. 212-21 (17 figs.). 

 % Tom. cit., p. 222. 



