()fi IlKDDKLYX INSTIXrTE MUSEl'M. SCIKNTI': lU-I.I.K II X 2. 4. 
similar raised margin of an elliptical outline, the long axis of 
which is placed longitudinally, lloth of tlie side views of these 
ojicnings may he seen in h'igure i of Plate 1. 
Perfect little "nail>" ha\e alread\- formed on ;he ungual pha- 
langes of the feet, and the w ehs hdween the toes are entire, 
heing carried to the ha^es nf the uail> all round. 
Xo feruhers of an\- description ai)pear anxwhere on the l)ody 
or limhs, while the latter, owing to the non-ossihcati()n of the 
skeleton, are -oft and llexihle. 
There i- a \ ery -light e\ idence of a i^iilar hoiicli. an.d the 
position of the hyoidean a])p:iratus is distinctl\- \isihle through 
the skin. luther c\c is small and closed. 
The external inirial af^crfiircs are ver\ minute, and over the 
locality of ilie auduory organ, on either side, 1 fail to hu.d any 
opening in the derm;il structure- to indicate the iio-ition of the 
external .auditory meatus. < )n either side of die cranium its 
location is merel\- indicated h\' a ver\- sh;dlo\\ concavity, witli 
no opening at its h.ase, in so far as covild he di-coxered h\- the 
use of ;i ])owerfnl lens. 
.\hout ,a month after this specimen h.ad heen in the den.atnred 
alcohol, .all the \entr.al p.arts became \ er\- much lighter in color, 
especi.ally the gular area .ami an elliptical space surrounding 
the somatic umhilicus. This last .area was carried forw.ard as 
a sliar]). acute ]ioint to the anterior limit.ation of the .ahdinninal 
c<a\'it\. when its median ajiex w.as from that poiul extended 
forw.ards to the root of the neck, in the middle line, as a dark, 
longitudin.al sn-i]ie of no great width. These i)eculi,ar ,and 
\'ery striking markings were all in the dermal tissues. ,auil I 
-im nn.ahle to gi\-e the reason for their <a]ipear;mce there. 
The skin of this young cormorant is ji.articnl.irK tough .and 
leathery. es]>eciall_\- on the dors.al region of the trunk. 
As .almost an\- external measurement ma\- he .accuratelv 
oht.ained froui h'ig. i of Plate 1, I h.axe not thought it uecess.ary 
to ]iresent an_\- such dat.a. 
L'i)on oi)ening the mouth, the huccal structures hronght into 
\iew are of a \er\- sim])le orcler. Among the most interesting 
of diese is the l(>ii::;iic. all the parts of which ( that suhseffuently 
ossifx) are in elementar\- cartilage — that is, the various ele- 
ments of the "hyoidean .app.aratus" .are thus far hut i)reformed 
in that material. 
