ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 469 



oesophagus and by the exaggerated development of the excretory gland ; 

 it seems to be near Filaria haje, from the cobra ; the adult is unknown. 

 He also describes both sexes of F. caudezei Fraipont, from the sub- 

 cutaneous connective-tissue and muscle of Uromastix acanthinurus. It 

 is marked by the presence of lateral alae, the shortness of the oesophagus, 

 and the great development of the caudal alae of the male. It approaches 

 Filaria fur cata Linstow, from the chameleon. 



Nematodes from African Apes.*— Eduard Reichenow reports the 

 occurrence of Ankylostoimmi in the gorilla, Ascaris in the chimpanzee, 

 and Microfilaria perstans in both. 



New Filaria from Lepus.f — L. G. Seurat describes both sexes of 

 Filaria numidica sp. n., from Lepus pallidior and L. kabylicus. It is 

 marked by the length and bluntly rounded shape of the tail, by the 

 absence of caudal alte, by the large number of pre-anal papillge, and by 

 the position of the vulva in the oesophageal region. It is very different 

 from F. scapiceps Leidy, which occurs in several North American species 

 of Lepus ; it has the verrucose ornamentation of the cuticle seen in F. loa ; 

 it is in several ways near F. ciradaris Linstow. 



Platyhelminthes. 



Two Cestodes from Spotted Sting-Ray. | — Edwin Linton describes 

 from Rhinoptera bonasus, Tylocephalimi marsupiimi sp.n., the first species 

 to be recorded since the genus was established in 1887, and Onchobothrium 

 tortuni sp. n. from Aetobatis narinari. Both species were fastened to the 

 mucous membrane of the spiral valve, which was somewhat ulcerated at 

 the point of attachment of the onchobothria. Tlie two new forms 

 belong to quite different families, but they possess an interesting feature 

 in common in the strongly fasciculated lougitudinal muscle-layers. 



Revision of Proteocephalid8e.§ — George Roger La Rue has revised 

 the Cestode family. Thirty-three species from fishes are dealt with and 

 eighteen from amphibians and reptiles. A species of Froteocephalus 

 may occur in different species of one genus, in different genera of the 

 same family, and rarely more widely. The Proteocephalids are structur- 

 ally allied to the Tetraphyllidee and more distinctly to theCyclophyllidas. 

 The suggestion is made that some member of the Bony Pike family 

 (Lepisosteidse) may have been responsible for the introduction of these 

 Oestodes into fresh waters. 



* Boll. Soc. Espan. Hist. Nat., xvii. (1917) pp. 312-7. 

 t G.R. Soc. Biol. Paris, Ixxx. (1917) pp. 354-7 (3 figs.). 

 X Journ. Parasitol., iii. (1916) pp. 34-8 (1 pi. and 2 figs.), 



§ Contributions Zool. Lab. Illinois University, No. 33 (1916) 350 pp. (16 pis.). 

 See Science, xliii. (1916) pp. 280-1. 



