SEA-FISHERIES LABORATORY. 381 



HpA \ 



HpP- L — First, second and third hypural bones. 



Hp* j 



H. S. — Haemal spines, numbered from before backwards. 



H. S.f — Last three haemal spines. 



hy. c. — Hyomandibular sensory canal. 



I. CI. — "Inter-clavicle." 



I. Hy. — Inter-hyal. 



I. M. C. — Inter-maxillary cartilage. 



In. — Innominate or pubic bone. The figures denote its three parts. 



in. buc. — R. buccalis internus facialis. 



inf. c. — Infraorbital sensory canal. 



I. Op. — Inter-operculum. 



I. Ph. — Inferior pharyngeal bones, representing a fifth pair of branchial 

 arches. 



Jac. anast. — Jacobson's anastomosis from the ninth to the seventh cranial 

 nerves. 



Jug. g. — Jugular ganglion of the N. vagus. 



lag. — Lagena. 



lat. c. — Lateral sensory canal. 



L. Fr. — Left frontal. 



I. g. x. — Ganglion of the R. lateralis vagi. 



L. Lc. — Left lachrymal. 



L. Na. C. — Position of left nasal chamber. 



low. in. buc. — Lower division of the R. buccalis internus facialis. 



L. P. C. — Left paroccipital condyle. 



L. P. Fr. — Left pre-frontal. 



\ — R. lateralis recurrens facialis and vagi. 

 I. rec. x. i 



-R. mandibularis trigemini and facialis. 



man. v. 



man. vii. 



man. ext. vii. — R. mandibularis externus facialis. 



man. int. vii. — R. mandibularis internus facialis. 



m. a. s. — Macula acustica sacculi. 



M. C. — Pads of soft cartilage (fibrous in parts). 



m. d. op. — Twig from the N. trigeminus to the M. depressor operculi. 



M. E. — Posterior portion of the mesethmoid bounding the orbit in front. 



M. E.' — Anterior portion of the same bearing the beak-like ridge for the 

 intermaxillary cartilage. 



