1875.] ON RARE MAMMALS IN THE SOCIETY'S COLLECTION. 417 
wing with a white spot close to the base, crossed at the middle by 
a band of four white spots and a submarginal row of minute white 
spots; the fringe of both wings alternately black and white. The 
underside the same as above, except that all the white spots are a little 
larger. 
Exp. 32 in. 
Angola (J. J. M.). Type, Mus. Druce. 
A beautiful little species allied to P. diomus, Hopff. 
Genus AstictrorTerus, Feld. 
A. LEPETETIERII, Latr. Enc. Méth. ix. p. 777 (1823). 
Genus CycLoripeEs, Hiibn. 
C. metis, Linn. Mus. Ulr. p. 325 (1764). 
Genus ParDALEODES, Butl. 
1. P. saror, Doubl. & Hew. Gen. D. L. t. 79. f. 4 (1852). 
2. P. raronta, Hew. Desc. Hesp. p. 35 (1868). 
A single specimen of this species was in the collection. 
Genus Tacriapes, Hiibn. 
TAGIADES HEREUS, NR. sp. 
Upperside, anterior wing dark brown, palish at the anal angle, 
four minute semitransparent spots on the middle of the costal margin, 
two below them, and six near the apex; posterior wing yellowish 
white, the base and the costal margin dark brown, with three brown 
spots on the hind margin close to the apex. Underside the same 
as above, except the costal margin of the posterior wing, which is 
not nearly so brown as above. 
Exp. 13 in. 
Angola. Type, Mus. Druce. 
Mr. Monteiro only obtained a single specimen of this insect ; it is 
quite unlike any other with which I am acquainted. 
7. On several rare or little-known Mammals now or lately 
living in the Society’s Collection. By P. L. Scuarer, 
M.A., Ph.D., F.R.S., Secretary to the Society. 
[Received May 12, 1875.] 
(Plates XLVII.-LI.) 
The difficulty of determining living animals accurately, especially 
where the species is of rare occurrence or belongs to a genus imper- 
fectly known, must be obvious to every naturalist. I need hardly, 
therefore, apologize for finding it necessary to make occasional revi- 
sions of the terms employed in the lists now printed every month of 
Proc. Zoou. Soc.—1875, No. XXVII. 27 
