Zool— Vol. I.] STARKS—SEBASTOLOBUS. 367 



branchials of the second arch. The hypobranchials of the 

 third arch are quadrangular in shape and their inner anterior 

 corners touch each other. Their anterior sides lie against 

 the posterior end of the long basibranchial of the second 

 arch. Between their inner edges is interposed a triangular 

 cartilaginous basibranchial, to which the ceratobranchials 

 (cbr.) of the fourth arch articulate, the hypobranchials of 

 that arch being absent. The first arch bears a styliform, 

 toothless -pharyngobranchial (pkbr.) for the attachment of 

 the arches to the base of the skull. Each of the other three 

 arches bears a toothed pharyngobranchial, that of the third 

 arch being the largest. 



The inferior -pharyngeals (ifih.) meet at their inner edges 

 but are not coossified. 



VIII. — Orbitals and Nasals. 



Plate XXIV, Fig. 12; Plate XXII, Fig. i. 



The freorbital (por.) and two suborbitals (sor.) are joined 

 together by sutures and form the spinous ridge along the 

 cheek to the preopercle. They appear as a single bone. 

 For their whole length they are hollowed out by a sensory 

 canal, which is bridged over only at long intervals. The pos- 

 terior half of the second suborbital forms the suborbital 

 stay. At about the middle of its upper edge the small 

 chain of suborbitals extends up to the sphenotic. They ap- 

 pear to be irregular in number, as on the left side there are 

 four and on the right only three. 



The nasals (ua.) are rather firmly articulated to the 

 ethmoid. They bear spines and are pierced by foramina 

 anteriorly. 



B. Comparative. 



The skeletons of Sebaslodes jlavidus, Scorpama guttata, 

 and Sebastes marinus, and the skulls for special points of 

 Sebaslodes myslinus, Sebaslodes carnatus, and Sebaslodes 



