114 
ACTIN OPTEEY GII. 
the lateral line are also deeply notched; the dorsal ridge- 
scales are acuminate from the beginning, and many of 
the anterior dorso-lateral scales are very finely tuber- 
culated. Rufford Coll. 
P. 6341. Large head, somewhat fractured and abraded and wanting 
the rostral extremity; Hastings. The external bones are 
all very coarsely rugose, without tuberculations; and the 
unworn teeth of the roof of the mouth are distinctly 
acuminate. The operculum has a sinuous anterior margin, 
and its depth is slightly more than twice that of the sub¬ 
operculum. At least six slender branchiostegal rays are 
fixed to the epihyal; the ceratohyal is long and much 
constricted mesially ; the hypohyal, shown on each side, 
and noticed in Proc. Zool. Soc. 1893, p. 563, is short and 
stout, with a deep transverse groove. Behind and below 
the head, the pointed and expanded inferior ends of the 
clavicles are well exhibited, and a few of the anterior 
scales remain. Beckles Coll. 
P. 6342. A smaller imperfect, abraded and fractured head, dis¬ 
playing in transverse section the structure of the jaws; 
Hastings. The section of the rostrum and upper denti¬ 
gerous bones is described and figured in Proc. Zool. Soc. 
1893, pp. 560, 562, pi. xlix. fig. 4, and the small coronoid 
bone of the mandible, shown on each side, is noticed, ibid. 
p. 563. Beckles Coll. 
P. 6343. A less imperfect, abraded head; Hastings. Beckles Coll. 
P. 6344-46. Six much abraded and fragmentary heads, one sliced 
to show the comparatively slight ossification of the inner 
elements of the cranium; Hastings. Beckles Coll. 
P. 1124. Waterworn specimen of the cranium with some of the 
anterior scales and ring-vertebrse; Hastings. The ex- 
occipital and pro-otic bones are seen in contact, and the 
coarsely cancellated structure of all the inner bones is 
displayed. The supratemporal plates, of which the median 
pair are preserved, overlap the hinder border of the 
cranium. Egerton Coll. 
P. 7415. Hinder portion of head, with some anterior scales, showing 
the small, triangular post-temporal bone and part of the 
parasphenoid; Sussex . OcAr/ey, 
Transferred from the Old Indian Museum , 1880. 
