1865.] DR. COBBOLD ON SOME ENTOZOA. 325 
yellow near the base of the tail. The tail at its root is sandy-coloured, 
but soon changes into dark brown, the hair being very coarse and 
long, forming into a broad brush at the end. 
; Inches 
Length from tip of nose to root of tail.......... 294 
iil is cs. dha boas Pmxcrce Aad MiSOe ae ee Ee. D7 
Race? toi base of-ear oxced, whiees See eo role ls 4i 
Arms and Wands: 25.562. Dace seen. 6 
Parsivand- toes. 22 { Aches Gee hae eee 7 
BEN aes eo ie os dn jsided RN a ee eae 21 
This Petrogale is easily distinguished from all other species by its 
remarkably long and bushy tail, which is about a foot longer than 
that of any other Rock-Wallaby. A single speciiaen of this inter- 
esting animal has been procured by Mr. George Masters, Assistant 
Curator of the Australian Museum, at Dabee Rylstone, 250 miles 
N.W. of Sydney. Mr. Masters informs me that this Wallaby is 
very quick and difficult to approach, and that, after watching for 
two nights, only one specimen could be secured. The skull was 
completely broken, so that no description could be given of it, 
' 
6. Note ON SOME ENTOZOA COLLECTED BY Mr. CHARLES W. 
Devis. By Dr. Cossotp, F.R.S. 
I am indebted to Mr. Devis for a few parasites obtained, during 
the present month, from animals dissected at the Queen’s Park, 
Manchester. All the forms appear to have been described by pre- 
vious writers ; but there are some points which deserve a passing 
remark, especially since Mr. Devis is likely to offer further contri- 
butions, which may be expected to yield important results respect- 
ing the distribution of some of these species. The specimens are as 
follows :— 
1. Several examples of the so-called Filaria capsularis, from the 
liver of the Lump-fish (Cyclopterus lumpus). 
2. One dozen individuals of Distoma incisum, from the Wolf-fish 
(Anarrhichas lupus). These minute flukes are usually found in the 
intestine ; but, in the present case, Mr. Devis states that they were 
attached to the mucous membrane of the bladder. Unfortunately 
their structural characters are mostly lost from accidental desicca- 
tion previous to transmission. The gills of this fish likewise sup- 
ported a considerable number of Lerneans belonging to the genus 
Anchorella. 
3. Several specimens of Ascaris ensicaudata, from the duodenum 
of the Missel-Thrush (Turdus viscivorus). 
4. Also several specimens of the same Ascaris from the duodenum 
of the Summer Duck (Anas sponsa). These individuals, from their 
comparatively large size, at first suggested the likelihood of a new 
species of Nematode ; but a microscopic examination of the extre- 
mities of the body yielded nothing distinctive. 
