~t 
DR. J. MURIE ON THE MANATEE. 37 
Fig. 1. 
R.a Sim Pa 
Reg. Ear 
f Pa 
RI, ? 
= —— (es -Shreg.Pa. ye. 
Ce %* Tage 
Shy Tz.t3¢. 
A aay 
Ch.& Pe, ‘Lad 
Diagram of the Cervical Nerves of the left side of the neck in the Westminster-Aquarium Manatee. 
. First nerve. 2.a, Twigs to rectus ant. major and rectus ant. minor; 2. Ja, rectus lateralis ;7St.m and Pa, 
to sterno-mastoid and panniculus ; Reg. Ear, to region of ear; and Pa, panniculus carnosus &e. 
- Second nerve. Integ. Sh. reg., Pa. §c., branches terminating in the tegumentary region of the shoulder and 
panniculus muscle &e. 
. Third nerve, issuing along with the fourth. % loop of communication with second nerve; 7 &c., offshoots- 
supplying the trapezius and other parts of the neck. 
- Fourth nerve, after separation from third trunk. Ph, phrenic nerve, derived near loop of junction with fifth ; 
Sh. j, Tz. §¢., division terminating around shoulder-joint, the trapezius, &e.; P.ma."D. & Sh. j., second 
division to pectoralis major, deltoid, shoulder-joint, &c.; S.sc.,s. ¢., the nerye which passes through 
suprascapular notch and is distributed to fleshy parts back of scapula &c. 
. Fifth nerye. Loop to fourth, afterwards dividing into branches: Sb to subscapularis, @ the circumflex 
nerve, and Sd, te, fc., nerves to subscapularis, the teres muscle, &e. Communicating branches proceed 
from the fifth to the sixth and to a division of seventh cervical nerve. 
- Sixth nerve, with cords of union with fifth, seyenth, and eighth. (, circumflex nerve; 9, te dc., subsca- 
pular and teres branches; La.d, to latissimus dorsi; B*, to biceps; Pe, to pectoralis. 
. Seyenth nerve, with union to eighth. M.sp, musculo-spiral; IM, median. 
. Highth cervical. Jnt.’, union with first intercostal nerve; U, ulnar; Z.c, internal cutaneous; Wr, nerye 
of Wrisberg ; Ch g pe, chest and pectoralis branches ; Za. d, latissimus dorsi branches. 
G2 
