On some Para.ndc Worms from Fast Africa. 283 



56. Marmosa parata, Tlios. 



? ;uul 2 yonnof. 11, 1 2, and 18. Para Zoological Gai dciis. 



Dfscribeil in 1*111 from a specimen obtained at Iganijic- 

 Assii by Mr. A. Kobert. 



Specimens iios. 155, from Villa Braoa, and 39 and 41, from 

 Ceaia, are also allied, but show certain differences, for whose 

 due appreciation further material is required. 



57. Monodelphis * hrevicaiic/ata, Erxl. 

 cJ . Taperinha, near Santarem {Dr. Ilaginann). 



58. Monodelphis ernUia'^ Thos. 

 Peramt/s emilice, Thos. 



c? . 161, 162. Villa Brao-a, R. Tapajoz. 



These two excellent specimens of tiiis rare and beaulilul 

 opossum are of interest owino- to their a<^ai!i showini;- the 

 curious vinaceous coloration of tiie under surface on which 

 some notes were given in the original description (I. c). 

 Bolli examples are old males and have the coloration covering 

 nearly the whole of the under surface, quite uniformly, and 

 similar In each case. It is, perhaps, possible that this colour, 

 so unlike a normal mammal colour, may be due to a staining 

 by some external cause, say a i)urple-juiced bark, and the 

 rapid change in the colour after death recorded by Frilulein 

 Snethlage would be in favour of such a view. 



Whether natural or artificial, it probably increases with 

 age, as both these examples are quite old, and have it at a 

 maximum. 



XXXIV. — 2Sotes on some I'arasitic Worms from East Africa. 

 By H. A. Baylis, M.A. 



(Published by permission of the Trustees of the British Museum.) 



The five species to be considered formed part of a collection 

 of jiarasites made by Mr. A. Loveridge during 1917-191'J m 

 British, and what was formerly German, East Afiica. 



N E M A T D A. 



1. Ascaridia fasciata, sp. n. (Fig''. 1-3.) 



Host : Vinago de/alandii, subsp. 

 Localitij. Dar-es-Salaam. 



* (/. Ann. k Mag. Nat. Hist. (9) v. p. 195 (footnote). 



19* 



