482 dr. murie on fregilupus varius. [June 16, 



indeed rather depressed and broad on the top. The triangular nar- 

 rowing of the bill, though regular, is decidedly most marked and 

 compressed from the nostrils forwards. 



The orange-coloured, horny, mandibular case having been retained 

 on one side, enables me to state that at the apex, above and below, 

 there is faint indication of a terminal, shallow notch ; whilst behind 

 there is slight roughening of the free margins, this, however, pos- 

 sibly being due to drying and wear. As far as appearances go, the 

 ends of the mandibles meet together in a point, and it seems the lower 

 horny case has greater depth than the upper. The membranous 

 orifice of the nostril is only 0'15 inch, or 2 lines, in antero-posterior 

 diameter, altogether being a small, low-set, narrow, oval aperture, 

 situated i'l inch from the tip of the horn-clad rostrum. 



Turning to the bones of the lower base, we observe that the prse- 

 maxillse and palatines coalesce anteriorly, and with shallow concavity. 

 The palate, posteriorly, is open, and only covered by membrane in 

 the fresh state. The inward shelving narrow palatal rods terminate 

 posteriorly in oblique-set outer plates, whose free ends are emarginate, 

 with short, rounded, external angles. The inner half-twisted and 

 vertically directed palatal laminae reach considerably further back, 

 and run beneath the pterygoid abutment, leaving, however, a middle 

 cleft of medium width and depth. The fair-sized vomer is cleft be- 

 hind, truncate in front ; and the septum narium is apparently unos- 

 sified. The maxillo-palatine of the one side was injured; but in the 

 other I made it out to be a narrow pedicle directed towards the 

 middle and sides of the vomer, not crossing that bone, or united to 

 its fellow of the opposite side. The pterygoids have shafts and ends 

 moderate in their proportions, as is the length of each bone. Pos- 

 teriorly they possess an upward-directed tabular process lying within 

 the root of the front limb of the quadrate. The jugals are very 

 delicate bony rods, and they lie against the outer lower border of the 

 lachrymals, but not beneath them. As regards the quadrate, it is 

 stout and high, the lower articular knuckles being relatively well 

 pronounced. 



The following are the noteworthy points in the shape and disposi- 

 tion of the bones, as examined on the upper posterior and lateral 

 superficies of the cranium. The tapering prsemaxillse have a sensible 

 curvature, narrow, but dorsally rounded, with a slight eminence at 

 rear of nares. There is a prefrontal depression ; a tuberose swelling 

 above the foramen magnum, with muscular impressions on either 

 side. This occipital face is widely arched, and smooth beyond. 

 Temporal groove shallow ; orbit of moderate circumference ; inter- 

 orbital septum with two large fenestra? ; lachrymal coalescent with 

 ethmoidal expansion. 



I can substantiate what has been averred of the tongue. Fig. 10. 

 Plate LXIL, shows its upper surface, along with the hyoid bones. In 

 this specimen it is above an inch long, and seems to have reached 

 quite halfway along the symphysial union when ordinarily at rest in 

 the mouth. It is apparently horny in structure, sagittate in shape, 

 but elongate; the margins slightly raised, so as to produce shallow 



