30 



PEOF. T. JEFFEEY PAEKEE ON THE 



37. In front of the first well-developed ray of the pectoral fin (fig. 6, pcf) is a small 

 bone which probably represents a rudimentary first (preaxial) ray (p. 26). 



38. The innominate, or pelvic bones (figs. 6 and 19, o.m), are very large, and unite 

 with one another by a double symphysis (p. 27). 



DESCRIPTION OF THE PLATES. 



Complete List of 

 Foramen for cranial nerves (pro- 

 bably second to fifth). 

 . 2). Point at which the mem- 

 brane was ruptured in the speci- 

 men. 

 Anterior gill-rakers, numbered 

 according to the arch to which 

 they are attached. 

 Alisphenoid. 

 Articular. 



Anterior zygapophyses. 

 Foramen in subcranial crest. 

 Basis cranii. 

 Basioccipital. 

 1-3 (in figs. 6 and 18). Brachials. 

 5 (in fig. 17). Fifth branchial arch. 

 br.r. Branchiostegal rays. 



c. Centra of vertebrae, numbered in 

 figs. 20 and 25. 

 c.a. Caudal artery. 

 c.br. 1_4 . Cerato-branchials. 

 cl. Clavicle. 

 c.n. Cartilaginous nodules (distal 

 pterygiophores) with which the 

 fin-rays are articulated. 

 Copulee (cp. 1, basi-hyal; cp. 3 

 and cp. 5, first and second basi- 

 branchials ; cp. 2, cp. 4, and 

 cp. 6-8, interbranchials. 

 Coracoid. 

 Caudal veins. 



a (in fi§ 



a.g.r. 



al.s. 



ar. 



a.zy. 



B. 



b.cr. 



b.o. 



br. 



br. 



cp 



cr. 



c.v. 



d. Dentary. 



Reference 



Letters. 



ep.br. 1- 



-4. Epibranchials. 



e.o. 



Exoccipital. 



ep.o. 



Epiotic. 



f.rn. 



Foramen magnum. 



f-P- 



Fibrous pads beneath the car- 





tilaginous nodules of the an- 





terior fin-rays. 



fr. 



Frontal. 



fr. 



Orbital plate of frontal. 



fr. 



Fin-rays (numbered in figs. 20 





and 25). 



CJ.C. 



Gastric caecum. 



h.br. 1_; 



3 . Hypobranchials. 



Ti.liy. 



Hypo-hyals. 



h.m. 



Hyomandibular. 



h.m 1 . 



Facet for hyomandibular on outer 





surface of auditory capsule. 



h.pl. 



Haemal plate. 



h.pr. 



Haemal process. 



I. 



Olfactory foramen. 



i.hy. 



Inter-hyaL 



i.g.r. 



Internal set of gill-rakers, num- 





bered according to the arch to 





which they are attached. 



i.m.s. 



Inter-muscular septa. 



i.sp. 



Interspinous bones or proximal 





pterygiophores (numbered in 





figs. 20 and 25). 



Ig. 



Longitudinal ligament uniting 





the neural spines and inter- 





spinous bones. 



lg<. 



Ligament passing from the last 



