235 



B. A. — Bulbus arteriosus. 



B. Br. 1-4. — Basi-branchials 1 to 4. 



J5d.— Bile duct. 



B. O.— Basi-occipital. 



Br. 1. — First holobranch. 1, the first visceral arch. 



Br. R. — -Branchiostegal rays, numbered from before backwards. 



Bs. — Baseosts, numbered from before backwards. 



C. — Centrum. 



C. Br.^ ] 



„ ^ , — Cerato-branchials of the first and fourth branchial arches. 

 C. Br.^ 



C. F. — -Facet on atlas for paroccipital condyle. 

 C. Fn. — Caudal fin. 



C. Hij. — Cerato-hyal. 



cil. b. — Ramus ciliaris brevis. 



cil. g. — Ciliary ganglion. 



cil. I. — Eamus ciliaris longus. 



Cir. c. — Circulus cephalicus. 



CL— Clavicle. 



Co. — Coracoid. 



co7n. 1 — vii.. — RR. communicantes between the sympathetic and the first 

 seven spinal nerves. 



com. r.i — R. comniunicans between the sympathetic and the N. 

 trigeminus. 



Cr. C. — Cranial cavity. 



d. 2—6. — Dorsal roots of the spinal nerves 2 to 6. 

 D. — Dentary. 



d.h.] ^ 



y — Dorsal roots of the first spinal nerve. . 



d. end. — Vestigial ductus endolymphaticus, with two minute utriculo- 

 saccular canals opening into its base. 



D. J'.— Dorsal fin. 



E. Br.^ ^ ., 



^ y — Epibranchials of the first and fourth branchial arches. 



Ef. Br. 1 — 4. — First to fourth efferent, branchial arteries. 



Ep. i ) ^. 



-Pn-st and second epural bones. 



E2). 2 I' 



Ep. Hy. — Epi-hyals. 



Ep. 0. — Epiotic. 



