318 
PROF. HUXLEY ON ARCTOCEBUS CALABARENSIS. [June 28, 
auditory meatus and anterior to the upper end of the antihelix, de- 
scribed and figured by Dr. Smith, are 0°25 inch long and about 0°1 
inch high ; they are separated at their bases by an interval of about 
0-1 inch, but their free edges approach more closely. Fine hairs 
spring perpendicularly from the opposed margins of these ridges, 
and interlock with one another. 
Fig. 1. 
The left ear of the Angwantibo. 
The length of the body is only 98 inches, instead of 103 inches. 
The 
tail, however, has the same length (0°25); and the other mea- 
surements are very similar to those of Dr. Smith’s specimen, thus :— 
inches. 
The breadth of the head in front of the ear is ...... 1°5 
The breadth of the head in front of the eyes is...... 0:8 
Mesian line of nose to anterior part of meatus auditorius 1°75 
Point of nose to anterior angle of eye.............. 0°75 
Anterior angle of eye to ear.......... hd :ctaietet a doen 1+] 
Totalleusthiof heads vi.ud saps. cette 4 ae ee 2°5 
Bye-slity.c.ciasaed? teil) soowedk ena bs ee 0-4 
Distance between inner canthi...................- 0°45 
Ear, antero-posteriorly (when flattened out) ........ 0°75 
Bar, vértieally: sonaloel 0.2 Wad Joe. a bars Basle 0°8 
The measurements of the limbs also agree very well with those 
given by Dr. Smith (/. c. pp. 184, 185). Thus I find the distance 
from the 
inches 
Point of shoulder to the elbow to be ..:........... 2°15 
BOW tOmWEtSh ist pp ekctcistes Gans oc ces wiles epolesereyeusiee 2 2°15 
Wrist to point of fourth finger ...........-+...6-- P29. 5. 55 
Great trochanter to knee.............. 0022s eee ee 245 
Knee to ankle ........ sy Ry omit ater aprane<i0 aay * oe 2°45 
Foot from ankle-joint to point of fourth toe ........ V5 6p 
Dr. Smith gives:—Arm 21 inches; forearm 27; hand 17; 
thigh 23 ; leg 23; foot 14. 
The differences obviously lie within the limits of individual varia- 
tion. 
