1896. ] ON THH ANATOMY OF RHYNCHOPS, 299 
Dimensions of the teeth :— 
Length of upper m.3....... Be ia eal 7°5 millim, 
‘ FE pai jay Malach Sibi SE na eae J ie 
: PSR DE Taree feiss estate tee agers 1 baie 
* PRE e onal eta atin eect on apeae Co thee 
a “plies TT de pr eect etal A Satay eee 
ai “py <j UD eeMeetts Gracia ae wit one 
a » pm.4 (alveolus only) .... 4 ,, 
CRO, Ole lOMOE MN Pete acne 6,5 o'n,0. 055 mie 48 AK ae 
os 2 LICE ean APR depnepcagee cen aes 
a aot ah fone PRS Pee er elena center one eer I haan Ae 
S RAPA Made cotariehd a. ai6. ays s:'e\o oh ae 
ou Se am TE een ahs int co asom a je 5 0'o cleat Gon kss 
Es Fhe | 32) ES a ea eer a 
Length of upper molar series.............. SLY Aye, 
5 lower ,, Sa IEE Se A Oe 34. Ci, 
The very close resemblance between the Lower Pliocene and 
recent species is both remarkable and disappointing, for it might 
have been expected that in the former some generalized characters 
would be found that would throw some light on the probable 
ancestry of this most aberrant mammal; this, however, it has been 
seen, is not the case. 
As Dr. Forsyth Major has pointed out, the former distribution 
of the genus seems to show that it is of northern origin and that 
it spread into Africa along with the rest of the Pliocene Mammalia 
with which it has been found, and was not derived from any southern 
land-area. Although at present it has been found only at Samos 
and at Maragha in Western Persia, some twenty degrees farther 
east, the accompanying mammalian fauna has a much wider range. 
It has been met with at Concud in Spain, Mt. Leberon in Southern 
France, Baltavar in Hungary, and Troy in Asia Minor; it pro- 
bably also ranged far to the east of Maragha, since Rhinoceros 
blanfordi, a species occurring in that locality, is also recorded from 
Baluchistan and from Southern China, where it is associated with 
a Giraffe. Although Orycteropus has not yet been discovered in 
these localities, it will probably be found to have ranged far both to 
the east and west of its limits as at present known. 
5. A Contribution to the Knowledge of the Anatomy of 
Rhynchops. By Franx E. Bepparp, M.A., F.RS., 
Prosector to the Society. 
[Received Febuary 4, 1896.] 
So far as I am aware the existing knowledge of Rhynchops is 
entirely derived from a paper by Brandt! upon its osteology. I 
found, therefore, with great pleasure a specimen of this genus 
among the spirit-preserved birds sent home from Western Africa 
1 Mém. Acad. Sci. St. Pétersb. sér. 6, Sci. Nat. iii, p. 218 (1840). 
